JP2009068202A - Water tank for tunnel-washed sewage and tunnel washing device using the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To inexpensively provide a water tank capable of surely recovering sewage by a simple structure. <P>SOLUTION: This water tank 100 is disposed under the inner wall surface of a tunnel along the longitudinal direction of the tunnel, and recovers the sewage produced when the inner wall surface of the tunnel is washed. The water tank 100 comprises a box having a pair of front and rear side-wall parts 10, a pair of right and left side-wall parts 20, and a bottom part 30. One side-wall part 21 of the pair of right and left side-wall parts 20 is tilted outward. The one side-wall part 21 is hung on the lower part (including the side surface of a bywall) of the inner wall of the tunnel. Consequently, the lower end of the one side-wall part 21 is raised from a ground, and the upper end of the one side-wall part 21 is fitted closely to the lower part of the inner wall surface of the tunnel using the lower end of the other side-wall part 22 as a fulcrum. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a water receiving tank that collects sewage generated when cleaning the inner wall surface of a tunnel to which dirt or dirt adheres, and in particular, exhibits high adhesion to the inner wall surface of the tunnel to efficiently wash sewage. It is related with the water receiving tank which implement | achieves collection | recovery.

  When a highway or general road tunnel is used for actual use, dirt derived from exhaust gas or dust adheres to the inner wall surface (ceiling surface and wall surface) of the tunnel. If such a dirt is not removed and the tunnel continues to be used for a longer period of time, the dirt will accumulate in layers.

  The ground color of the concrete that constitutes the inner wall surface of the tunnel is originally a gray color close to white, but the surface of the inner wall becomes darkened due to the accumulation of the dirt. Since the lightness of the color of the wall surface is lowered by darkening the wall surface, the light emitted from the luminaire installed in the tunnel is absorbed without being reflected by the wall surface.

  When such a tunnel is actually driven by a car or the like, not only the inside of the tunnel is felt extremely dark, but also it becomes difficult for the driver to grasp the sense of distance from the side wall, and the road shoulder There is no denying the risk of accidents such as getting on or touching the wall.

  In view of such a problem, various cleaning techniques have been devised because of the need to remove dirt adhering to the tunnel wall surface. Specifically, the simplest method is to build a “Yagura” (scaffold) in the tunnel and deploy a worker with a “thunder” (cutting machine) to the tunnel. Conventionally, the worker presses the sander against the inner wall surface of the tunnel and scrapes the surface of the inner wall together with “dirt”. In such a method, the concrete is also cut together with “dirt”, so that during the work, the noise generated by the cutting along with the operation sound of the sander in the tunnel is reflected in the tunnel. Because of the large amount of dust that floats, workers were forced to work under extremely harsh conditions. Although an apparatus for automating the cutting work has been devised, since the introduction cost is great, the problem of the “harsh working environment” has not been substantially solved.

  In order to solve such a problem, a method of cleaning by spraying cleaning water on the tunnel wall surface has been devised. However, if the “sewage” generated after washing is not collected in such a method, it will flow out of the tunnel through a gutter provided on the shoulder of the road, contaminating the river, soil or groundwater, resulting in serious problems. Will be caused.

  The technique described in Patent Document 1 has been devised to solve the above problem of “sewage outflow”. The technique described in Patent Document 1 relates to a tunnel wall surface cleaning vehicle, which collects cleaning liquid inside an “drainage passage” formed by an “air bag” provided in the cleaning vehicle and causes the cleaning liquid to flow. We were collecting sewage. According to such a configuration, since the drainage passage as a “receiving tray” is installed directly below the hose that supplies the cleaning water, it becomes possible to efficiently collect the sewage.

However, in the technique described in Patent Document 1, the cleaning vehicle performs cleaning while traveling in the longitudinal direction of the tunnel (longitudinal walking of the tunnel). The back and the tunnel wall surface rub against each other, the load concentrates on the drainage passage, and the drainage passage may be deformed, making it difficult to reliably collect sewage. Therefore, a means for efficiently and reliably collecting sewage has been desired.
Japanese Utility Model Publication No. 01-147100

  In view of the above problems, an object of the present invention is to provide a water receiving tank that enables reliable collection of dirty water at a low cost with a simple configuration.

  Means taken by the present invention to solve the above problems are as follows.

  First, the invention according to claim 1 is a water receiving tank 100 that is disposed along the longitudinal direction of the tunnel below the inner wall surface of the tunnel and collects the sewage generated when the inner wall surface of the tunnel is washed. The water receiving tank 100 includes a box body having a pair of front and rear side wall portions 10, a pair of left and right side wall portions 20, and a bottom portion 30, and one side wall portion 21 of the pair of left and right side wall portions 20 is inclined outward. The one side wall 21 is leaned below the inner wall of the tunnel (including the side surface of the side road), so that the lower end of the one side wall 21 is raised with respect to the ground, and the other side wall 22 The lower end portion serves as a fulcrum, and the upper end portion of the one side wall portion 21 is in close contact with the lower side of the inner wall surface of the tunnel.

  Next, in the invention according to claim 2, in the water receiving tank 100 according to claim 1, the water blocking member 40 is provided along the longitudinal direction of the upper end of the one side wall portion 21 leaning under the inner wall of the tunnel. It is characterized by being provided to protrude.

  Further, the invention according to claim 3 is the water receiving tank 100 according to claim 1, wherein the water blocking member 40 is provided along the longitudinal direction of the outer side surface of the one side wall portion 21 leaning down below the inner wall of the tunnel. It is characterized by being affixed.

  According to a fourth aspect of the present invention, in the water receiving tank 100 according to any one of the first to third aspects, the other side wall portion 22 is provided with a high wall portion 50 for preventing scattering of cleaning water. It is characterized by that.

  Furthermore, the invention which concerns on Claim 5 is the water receiving tank 100 described in Claim 1 thru | or 4, When it arrange | positions continuously with the other water receiving tank 100 in one or both of the pair of front-and-back side wall parts 10. The through-hole 60 communicating with the other water receiving tank 100 is provided.

  Subsequently, the invention according to claim 6 is the water receiving tank 100 according to claim 5, wherein the through hole 60 provided in one or both of the pair of front and rear side wall portions 10 has a through hole 60 in another water receiving tank 100. The sealing member 61 for preventing the water leak from between is provided.

  The invention which concerns on Claim 7 WHEREIN: In the water receiving tank 100 in any one of Claim 1 thru | or 6, When arrange | positioning continuously with the other water receiving tank 100 in the upper end part of a pair of front and back side wall part 10 The joint member 11 is provided to prevent water leakage from between the side wall portion of the other water receiving tank 100.

  The invention according to claim 8 is the water receiving tank 100 according to any one of claims 1 to 7, wherein a roller 70 is provided on the bottom surface of the water receiving tank 100 to be movable on the road surface. It is what.

  The invention according to claim 9 is the water receiving tank 100 according to claim 8, wherein at least two rollers 70 are provided on the bottom surface of the water receiving tank 100. Of these rollers 70, the roller 70 on the tunnel wall surface side is extendable and retractable. It is characterized in that it is provided via a supporting tool 80.

  According to a tenth aspect of the present invention, there is provided a cleaning device for an inner wall surface of a tunnel, which is mounted on a vehicle base, and stores a cleaning water storage tank and a cleaning water supplied (inhaled) from the tank section 210 at a high pressure. A water supply unit 220 for performing the above operation, an injection port 240 for injecting the cleaning water delivered from the water supply unit 220 to the inner wall surface of the tunnel, a pedestal unit 230 for placing the injection port 240 close to the tunnel wall surface, and a tunnel Any one of Claim 1 thru | or 9 which is arrange | positioned along the longitudinal direction of the said tunnel below an inner wall face, and collect | recovers the sewage produced by injecting washing water with respect to the inner wall face of a tunnel from the said injection port 240 The water receiving tank 100 described above, a pumping unit 250 that sucks sewage stored in the water receiving tank 100, and a filtering unit 26 that separates sludge from the sewage sucked by the pumping unit 250. It is characterized in that it has and.

  According to an eleventh aspect of the present invention, in the tunnel inner wall surface cleaning apparatus according to the tenth aspect, the receiving tank 261 that receives the sewage primarily stored in the water receiving tank 100 and stabilizes the sewage, and the receiving tank. And a filtration tank 260 including a mixing tank 262 that is charged with the reagent together with the sewage in the H.261 and agitated, and a separation tank 264 that separates the sewage stirred with the reagent in the mixing tank 262 into water and sludge. It is characterized by.

  According to a twelfth aspect of the present invention, in the tunnel inner wall surface cleaning apparatus according to the eleventh aspect, the outer cylinder 264a communicating with the mortar-shaped bottom portion 264b and the outer cylinder 264a are disposed inside the outer cylinder 264a. A flow path that leads to the bottom portion 264b by partitioning a part of the inner space of the inner cylinder, and an inner cylinder inner cylinder 264c that forms a flow path from the bottom portion 264b to the upper end portion of the outer cylinder 264a. The separation tank 264 is provided.

  The effects obtained by adopting the above means are as follows.

First, the water receiving tank 100 in claim 1 is configured such that one side wall portion 21 of the pair of left and right side wall portions 20 is inclined outward. Therefore, when the one side wall 21 is stood below the inner wall of the tunnel, the lower end of the other side wall 22 facing the one side wall 21 serves as a fulcrum and the lower end of the one side wall 21 The upper part of the one side wall part 21 leans against the lower part of the inner wall surface of the tunnel (including the side surface of the side road). Therefore, the upper end portion comes into close contact with the inner wall surface.
That is, according to the water receiving tank 100 of the invention according to claim 1, the cleaning sewage can be recovered by entering the box having the pair of front and rear side wall portions 10, the pair of left and right side wall portions 20, and the bottom portion 30. In addition, since the one side wall portion 21 leans against the tunnel inner wall side, the water receiving tank 100 itself is in close contact with the tunnel inner wall without pressing the water receiving tank 100 toward the inner wall surface of the tunnel.

  Next, the water receiving tank 100 according to claim 2 is configured such that the “water blocking member 40” is projected along the longitudinal direction of the upper end of the one side wall portion 21 leaning under the inner wall of the tunnel. When the water receiving tank 100 is leaning against the inner wall of the tunnel, the protruding portion of the water stop member 40 is bent along the lower side of the tunnel inner wall (including the side surface of the side road). Therefore, at the curve point of the tunnel, the gap between the “wall surface” forming an arc and the “one side wall portion 21” forming a straight line is filled, so that the one side wall portion 21 and the tunnel inner wall surface It is possible to satisfactorily prevent the washing sewage from leaking out of the space.

  In addition, the water receiving tank 100 according to claim 3 is constituted by sticking a “water-stop member 40” along the longitudinal direction on the outer side surface of the one side wall portion 21 standing under the inner wall of the tunnel. It is possible to satisfactorily prevent the cleaning sewage from leaking from between the one side wall 21 and the inner wall surface of the tunnel.

  Furthermore, the main use of the water receiving tank 100 according to the present invention is to collect sewage generated when cleaning is performed by spraying cleaning water onto the tunnel wall surface with a high-pressure spray device. A part of the washing water sprayed at a high pressure on the wall surface will be splashed and scattered around. Therefore, in the invention according to claim 4, since the high wall portion 50 is erected on the “other side wall portion 22” arranged on the roadway side, it is possible to effectively prevent splashes from being scattered on the roadway side. Become.

  The water receiving tank 100 in claim 5 has a through-hole 60 communicating with another water receiving tank 100 adjacent to each other in one or both of the pair of front and rear side wall portions 10. Therefore, it is possible to configure one water channel by the plurality of water receiving tanks 100 continuously arranged along the longitudinal direction of the tunnel. Therefore, when the sewage in the water receiving tank 100 is sucked, it is only necessary to suck from a part of the water receiving tanks 100, and it is not necessary to suck from all of the plurality of water receiving tanks 100, so the suction work can be reduced. It becomes possible.

  The water receiving tank 100 in claim 6 has a seal member 61 for preventing water leakage from between the through holes 60 in the other water receiving tanks 100 in the through holes 60 provided in the side wall portions. Therefore, it is possible to prevent water leakage from the joints between the through holes 60 provided in the side wall portions.

  Since the water receiving tank 100 in claim 7 has the joint member 11 for preventing water leakage from between the side walls of the other water receiving tanks 100 at the upper ends of the pair of front and rear side walls, the water receiving tank 100 is generated at the time of cleaning the tunnel wall surface. Thus, it is possible to prevent water leakage due to the sewage entering between the front and rear side walls in the plurality of water receiving tanks 100.

  Since the water receiving tank 100 in claim 8 has the roller 70 on its bottom surface, it can be easily moved along the longitudinal direction of the tunnel as the cleaning operation proceeds. Further, the water receiving tank 100 can be pulled by a vehicle or the like equipped with a cleaning device or the like. In that case, since the cleaning operation can be continued without interruption, the work efficiency can be dramatically improved.

  In the water receiving tank 100 according to the ninth aspect, among the rollers 70 provided at at least two positions on the bottom surface, the roller 70 arranged on the tunnel wall surface side is provided via a telescopic support tool 80. Therefore, even when the water receiving tank 100 is pulled, when the sewage enters the main water receiving tank 100, the support 80 sinks due to the weight of the sewage and faces the side wall 21. Since the upper end portion of the one side wall portion 21 leans against the lower side of the inner wall surface of the tunnel with a roller 70 (not stretchable) provided on the lower side of the other side wall portion 22 as a fulcrum, the upper end portion is It becomes possible to make it contact | adhere with respect to a wall surface.

  According to the cleaning apparatus for the inner wall surface of the tunnel according to the tenth aspect of the present invention, the cleaning water stored in the tank section 210 is sent out by the water supply section 220 at a high pressure, and is injected into the tunnel from the injection port 240 disposed in the pedestal section 230. By spraying on the wall surface, the soot and dirt adhering to the inner wall surface of the tunnel are washed away, and the sewage can be recovered by the water receiving tank 100 according to any one of claims 1 to 9. And while the sewage stored in the said receiving tank 100 is attracted | sucked by the pumping part 250, after separating sludge from the said sewage in the filtration part 260, it becomes possible to reuse for washing | cleaning of the inner wall surface of a tunnel.

  That is, according to the present invention, a small number of workers can be cleaned in a short working time, and the sewage generated when the tunnel inner wall surface is cleaned is collected and filtered and reused for the cleaning. It is possible to provide a possible cleaning device at a low cost.

  The apparatus for cleaning a wall surface in a tunnel according to claim 11 includes a receiving tank 261 in which sewage primarily stored in the water receiving tank 100 is input and the sewage is stabilized by the filtering unit 260 and the sewage in the receiving tank 261. Because it has a mixing tank 262 that is charged with a reagent (precipitation accelerator or the like for quickly precipitating suspended matter contained in wastewater) and stirred, and a separation tank 264 that separates the wastewater into water and sludge. The sludge contained in the sewage can be removed step by step in each filtration process. That is, according to the present invention, sludge can be efficiently separated from sewage.

  In the tunnel inner wall surface cleaning apparatus according to claim 12, the separation tank 264 is disposed inside the outer cylinder 264a communicating with the mortar-shaped bottom portion 264b, and inside the outer cylinder 264a. A flow path leading to the bottom part 264b by partitioning a part is provided, and an inner cylinder constituting a flow path extending from the bottom part 264b to the upper end part of the outer cylinder 264a. Therefore, the sewage stirred together with the reagent in the preparation tank 262 reaches the bottom 264b through a flow path in which a part of the inner space of the outer cylinder 264a is partitioned by the inner cylinder 264c, and has a heavy specific gravity “sludge”. On the other hand, “water” having a low specific gravity is deposited on the mortar-shaped bottom portion 264b, and is discharged to the outside of the separation tank 264 by overflowing the flow path leading to the upper end portion of the outer cylinder 264a. . That is, according to the present invention, sludge can be more efficiently and reliably separated from sewage.

  When the water receiving tank 100 according to the present invention is disposed along the longitudinal direction of the tunnel below the inner wall surface of the tunnel (including the side surface of the side road) and cleans the inner wall surface of the tunnel as shown in FIG. It collects sewage generated in The main water tank 100 mainly includes a “box” made up of front and rear side walls 10 and 20 (see FIG. 2) and a bottom 30. The water receiving tank 100 according to the present invention includes a “high wall portion 50” (see FIG. 2) for preventing splashes generated during cleaning and a “roller 70” (see FIG. 2) for facilitating the movement of the water receiving tank 100. 5) or the like may be added. Hereinafter, each component will be described.

  First, the “box” is for collecting and collecting the sewage generated during the cleaning of the inner wall surface of the tunnel. As shown in FIG. 2 or FIG. The side wall portion 20 ”,“ a pair of front and rear side wall portions 10 ”constituting the end surface of the water receiving tank 100, and“ bottom portion 30 ”constituting the bottom surface of the water receiving tank 100. If the mechanical strength and rust prevention property can be secured, the material of the box is not limited, but it may be configured by bending or welding the “bonded steel plate”, for example. .

  Of the “a pair of left and right side wall portions 20”, “one side wall portion 21” is configured to be inclined outward. By adopting such a configuration, when the one side wall portion 21 is leaned under the tunnel inner wall (or side road), the lower end portion of the other side wall portion 22 facing the one side wall portion 21 serves as a fulcrum. Thus, the lower end portion of the one side wall portion 21 floats with respect to the ground, and the upper end portion of the one side wall portion 21 leans against the lower side of the inner wall surface of the tunnel. Therefore, the said upper end part will contact | adhere (closely) with respect to an inner wall surface. Here, when the “water blocking member 40” is configured to protrude along the longitudinal direction of the upper end of the one side wall portion 21, when the water receiving tank 100 is leaning against the inner wall of the tunnel, The protruding portion of the water member 40 bends along the lower side of the tunnel inner wall (including the side surface of the side road). Therefore, at the curve point of the tunnel, the gap between the “wall surface” forming an arc and the “one side wall portion 21” forming a straight line is filled, so that the one side wall portion 21 and the tunnel inner wall surface It is possible to prevent the cleaning sewage from leaking out of the space. Specifically, as shown in FIG. 9, a slit is formed along the longitudinal direction of the water blocking member 40, and the “one end of one side wall portion 21” enters the slit, thereby It is conceivable to provide the water stop member 40 so as to protrude from the upper end of the side wall portion 21 ". On the other hand, when the “water-stop member 40” is attached along the longitudinal direction of the outer side surface of the one side wall 21, the water-stopping tank 100 is in a state of leaning against the inner wall of the tunnel. By deforming in the thickness direction of the water member 40, the gap between the “wall surface” and the “one side wall portion 21” is filled. Therefore, it is possible to prevent the cleaning sewage from leaking out between the one side wall 21 and the inner wall surface of the tunnel. Even in the configuration of “sticking” as described above, as shown in FIG. 2 or FIG. 3, the “water blocking member 40” is provided so as to protrude from the upper end of the “one side wall portion 21”. In this case, leakage of cleaning sewage can be prevented even at a curve point.

  One or both of the “front and rear pair of side wall portions 10” may be provided with through holes 60 communicating with other water receiving tanks 100 adjacent to each other as necessary. When such a configuration is adopted, a single “water channel” can be configured by the plurality of water receiving tanks 100 arranged continuously along the longitudinal direction of the tunnel. Therefore, when the sewage in the water receiving tank 100 is sucked, it is only necessary to suck from a part of the water receiving tanks 100, and it is not necessary to suck from all of the plurality of water receiving tanks 100. It becomes possible. In the present invention, the position and shape of the through-hole 60 are not particularly limited as long as the through-hole 60 is provided in the “front and rear side wall portions”, but one or more circular or polygonal through holes are provided near the bottom portion 30. It is conceivable that a hole 60 is provided (see FIGS. 2 and 3), or a large U-shape is cut out from the upper end to communicate with another adjacent water receiving tank 100 (see FIG. 4). In addition, when the through-hole 60 provided in the side wall part is configured, there is a risk of water leakage from a joint with the through-hole 60 in another water receiving tank 100, so the peripheral edges of the through-holes 60 communicating with each other are It is necessary to seal with the seal member 61. Regarding the seal member 61, specifically, a rubber member having a substantially U-shaped cross section may be configured along the shape of the through hole 60. In the water receiving tank 100 arranged at a position corresponding to the end of the “water channel”, the “through hole 60” needs to be closed with a “plug” formed of synthetic rubber or the like.

  Next, the “high wall portion 50” prevents splashes generated when the washing water is sprayed on the inner wall surface of the tunnel by the high-pressure spraying device and is scattered on the roadway side. It is to be established. The structure is not particularly limited as long as it achieves such an action, but in the embodiment shown in FIG. 2, the aluminum plate is inserted into the support portion provided on the bottom portion 30 of the box to stand upright. And it overlaps so that it may not conflict with the splash prevention plate hung down by the vehicle base (after-mentioned), and the splash of the said splash is prevented more effectively. In addition, it is suitable if the said high wall part 50 is comprised detachably for the convenience at the time of conveying this water receiving tank 100. FIG.

  Further, as shown in FIGS. 5A and 5B, one or more “rollers 70” are arranged on the bottom surface of the water receiving tank 100, and move on the road surface as the cleaning operation proceeds. It is something that makes it easy. In particular, when four water tanks are provided, the water receiving tank 100 can be made independent. By adopting the configuration including the roller 70, the water receiving tank 100 can be pulled by a vehicle or the like equipped with a cleaning device or the like. When such a configuration is adopted, the cleaning operation can be continued without interruption, so that the work efficiency can be drastically improved.

  In the present invention, the above-mentioned “roller 70” may be a roller whose traveling direction is fixed, or whose traveling direction is adjustable in angle. When such a configuration is adopted and the traveling direction of the roller 70 is fixed toward the inner wall surface side of the tunnel and the main water receiving tank 100 is pulled, as the water receiving tank 100 moves in the tunnel longitudinal direction, The water receiving tank 100 can be brought close to the tunnel inner wall surface.

  As shown in FIG. 6, the roller 70 is provided in at least two places on the bottom surface of the water receiving tank 100, and the roller 70 arranged on the tunnel wall surface side is provided via a telescopic support 80. May be. In this case, even when the water receiving tank 100 is pulled, when the sewage enters the water receiving tank 100, the weight of the sewage reaches the support 80, and the side wall 21 and The upper end portion of the one side wall portion 21 leans against the lower side of the inner wall surface of the tunnel with the roller 70 provided (not stretchable) provided on the lower side of the opposite side wall portion 22 as a fulcrum. It will be in close contact with the inner wall surface. The structure of the support is not particularly limited as long as it can be expanded and contracted. Specifically, by placing an elastic body such as a coil spring or elastomer resin inside the telescope structure, a repulsion can be achieved. It can be considered to have a configuration with power.

  Then, the usage method of the said water-receiving tank 100 is demonstrated. The water receiving tank 100 according to the present invention is used for collecting the sewage generated when the inner wall surface of the tunnel is washed, and extends along the longitudinal direction of the tunnel below the inner wall surface of the tunnel (or on the side surface of the side road). Are arranged to form a “waterway”. In the present invention, the longitudinal dimension of the water receiving tank 100 is not particularly limited. Specifically, it is conceivable to prepare two types, a short type having a total length of 1 m and a long type having a total length of 3 m. When constructing a waterway along the curved part (curve) of the tunnel, the gap between the water receiving tank 100 and the inner wall surface of the tunnel is minimized by arranging the short-type water receiving tank 100 continuously. Is possible. On the other hand, when the water channel is constructed along the straight part of the tunnel, it is possible to minimize the connection work between the water receiving tanks 100 by arranging the long-type water receiving tanks 100 continuously. Become.

  Then, the front and rear side wall portions 10 in the water receiving tanks 100 adjacent to each other are brought into close contact with each other, and the “joint member 11” having a substantially U-shaped cross section (a substantially U-shaped cross section) is fitted from the upper ends of the both side wall portions 10. Sealing to prevent water leakage between the receiving tanks. Moreover, when the water receiving tanks adjacent to each other are connected by the side wall portions 10, water leakage can be prevented more reliably. In that case, it is necessary to hold these both side wall portions 10 so as not to be separated by the pinching means 90. In this embodiment, as shown in FIG. 4 (b), the receiving tanks 100 are separated from each other by pressing and fitting a substantially U-shaped clip in side view (substantially U-shaped in side view) from above the side wall portion 10. Is preventing. In particular, when pulling a water channel composed of a plurality of water receiving tanks 100, the necessity of holding by the clamping means 90 increases. The pinching means 90 may be pressed from above the joint member 11 mounted on the side wall 10 as shown in FIG. Further, as shown in FIG. 8, it is preferable that the pinching means 90 is attached only to the side wall 10 on the curvature center side constituting the arc of the curve at the curve point in the tunnel, and the other is released. Of course, even in this case. The pinching means 90 may be press-fitted directly to the side wall portion 10 (that is, below the joint 11). As shown in FIGS. 7 and 8, the “joint member 11” has an end shape that can be in close contact with the “water blocking member 40” protruding from the upper end of the “one side wall portion 21”. The water stop member 40 protruding from the upper end of the one side wall portion 21 may be pressed toward the inner wall surface of the tunnel from the side surface or the upper end to increase the degree of adhesion of the water stop member 40 to the inner wall surface of the tunnel. . Further, it is conceivable that the joint member 11 that covers the side wall portions 10 of the water receiving tanks 100 adjacent to each other from the upper end is configured with a wide dimension to prevent water leakage between the water receiving tanks.

  Next, a “cleaning apparatus” in which the water receiving tank 100 is incorporated in a part of the system will be described with reference to an example described later. In addition, the following Example shows only one Embodiment of this invention, and the technical idea of this invention is not limited to this.

  FIG. 1 or FIG. 10 shows an embodiment of the cleaning apparatus. The cleaning apparatus according to the present embodiment is mounted on a vehicle base (truck) as shown in FIG. 10, and in addition to the water receiving tank 100, a tank unit 210, a plurality of water supply units 220, a pedestal unit 230, It has the injection port 240, the pumping part 250, and the filtration part 260. FIG. Hereinafter, each configuration will be sequentially described.

  First, the “tank part 210” stores cleaning water, and supplies cleaning water to an injection device described later. In the present embodiment, two “2,000 L capacity water storage tanks” as the tank portion 210 are mounted on the loading platform of the vehicle base (truck). Of course, the quantity of the tank part 210 is not particularly limited in the present invention. Any one of the two or more water storage tanks may be used as a “collection tank” in FIG. 14 to temporarily store sewage collected by the water receiving tank 100.

  Next, the “water supply part 220” is for sending the cleaning water supplied (sucked) from the tank part 210 to the injection port 240 (described later) arranged on the pedestal part 230 at a high pressure. Specifically, it is conceivable to use a high pressure washer driven by an engine or an electric motor for the water supply unit 220. In this embodiment, a frame (storage shelf) is assembled above the truck bed, and nine “high pressure washing machines (JC-2014GP) manufactured by Seiwa Sangyo Co., Ltd.” are installed there. In the present embodiment, the water supply unit 220 covers the two injection ports 240 with a single high-pressure washing machine.

  Further, as shown in FIG. 1A, the “pedestal portion 230” is for arranging a plurality of injection ports 240 (to be described later) for injecting cleaning water so as to approach the tunnel wall surface. The frame 232 is formed in an arc shape corresponding to the shape of the slider, and the slider 233 is slidable in the left-right direction on the truck bed. In the present embodiment, the slider 233 needs to have a movable range longer than the width of the side road so that the inner wall surface of the tunnel can be washed over the side road (or management passage) from the roadway side. In order to slide the frame 232 in the lateral direction, power such as a motor or a cylinder may be used, or an operator may manually slide the frame 232. In this embodiment, the frame 232 is slid using a hydraulic cylinder as a power source. However, the present invention is not limited to this, and an “electric motor” is adopted as a power source, and a “chain”, “belt” or “gear” is adopted as a power transmission means, and the frame 232 is slid. May be. In the present embodiment, the arcuate frame 232 in the pedestal portion 230 is supported by an arm 231 that is rotated by a hydraulic cylinder, as shown in FIG. Is folded inward at about one third of the position, so that compact storage is possible, which contributes to convenience during movement and storage.

  As shown in FIG. 1 (a), a plurality of “injection ports 240” are installed on the pedestal portion 230, and inject cleaning water sent from the water supply portion 220 onto the inner wall surface of the tunnel. It is. It is more preferable that the injection port 240 is provided so as to be movable forward and backward with respect to the frame 232. That is, when the tip position of the injection port 240 can be moved forward and backward, there is a possibility that the tip of the injection port 240 may interfere with the “inner wall surface of the tunnel” or the “structure” installed inside the tunnel. However, the interference can be prevented by retracting the injection port 240. In addition, by installing a sensor near the injection port 240 itself or in the vicinity of the injection port 240, when the sensor anticipates the interference of the injection port 240 with a structure or an inner wall surface in the tunnel, the injection port 240 May be employed to avoid interference with the structure or the like.

  The “pumping unit 250” sucks “sewage” generated when cleaning is performed from the water receiving tank 100 and puts it into the collection tank. In particular, when washing is performed while pulling and moving a “water channel” formed by connecting a plurality of water receiving tanks 100 by the vehicle base (truck), the “submersible pump” is suspended from the truck bed. It is conceivable that the suction port is placed in the water receiving tank 100 while being arranged. On the other hand, when washing is performed in a state where the water channel 100 formed by connecting a plurality of water receiving tanks 100 is not pulled, it may be provided at the end of the water channel. It is not necessary to mount it on the loading platform. In this embodiment, a suction port is provided at the end of a “water channel” formed by connecting a plurality of water receiving tanks 100, and the discharge port of the pump is connected to a water storage tank (collection tank) on the truck bed. Thus, cleaning water and sewage can be sucked and introduced into the water storage tank.

  The “filtration unit 260” removes “concrete pieces”, “slags”, “oils and fats” and the like contained in the sewage collected in the water receiving tank 100 from the sewage. When the sewage collected by the water receiving tank 100 is reused for wall cleaning, it is necessary to remove impurities contained in the sewage. As shown in FIG. 11 or FIG. 14 (flow diagram), the filtration unit 260 includes “receiving tank 261”, “preparation tank 262”, “reaction tank 263”, “separation tank 264”, and “confirmation tank 265”. It will be. First, sewage collected from the water receiving tank 100 and primarily stored in a collection tank (not shown) is introduced into the receiving tank 261 by the water supply pump 263b, and the sewage is stabilized in the receiving tank 261. Next, the sewage is introduced into the preparation tank 262 from the receiving tank 261 and a reagent is added, and stirring is performed by rotating a propeller (having a hole for promoting stirring) with a power motor. The reagent introduced here refers to a neutralizing agent for neutralizing sewage (washing water) having increased acidity or a precipitation accelerator for quickly precipitating suspended matters contained in the sewage. . In other words, the wash water before washing is almost neutral and does not contain suspended solids, but the waste water generated by washing contains acid substances, so the acidity rises and various kinds of “soil” are included. The substance will float in the sewage. Since the cleaning apparatus according to the present invention assumes that the recovered sewage is also used for cleaning again, it is necessary to neutralize the sewage or to remove floating substances in the recovery process. Therefore, it is necessary to add the reagent into the mixing tank 262 together with the sewage and stir. The propeller in the mixing tank 262 is fed into the reaction tank 263 when the sewage is stirred. In the reaction tank 263, stirring is performed by rotating a propeller (having a hole for promoting stirring) with a power motor in order to promote a chemical reaction between the sewage and the reagent. In FIG. 8, the reaction vessel 263 in this embodiment is provided with two propellers, one of which is set so as to push the flow path in the reverse direction, and gradually into the water storage tank 263a provided immediately below. It is configured so that sewage flows. The sewage temporarily stored in the water storage tank 263a is sent to the separation tank 264 by a liquid feed pump and separated into water and sludge (sludge). As shown in FIG. 11 or FIG. 12, the separation tank 264 has a double structure having an inner cylinder 264c inside an outer cylinder 264a provided with a bottom 264b, and the sewage sent from the water storage tank 263a is the inner cylinder 264c. And the bottom of the separation tank 264 proceeds to the bottom 264b. Since the bottom 264b of the separation tank 264 has a mortar shape, sludge accumulates from the tip of the cone. After a certain amount has accumulated, it is released by operating the valve 264d provided at the tip of the cone, and the sludge is taken out. On the other hand, the water after cleaning separated from the sludge rises through the inner cylinder 264c and overflows from the upper end (see FIG. 12) of the inner cylinder 264c to the outside of the separation tank 264. It will be discharged and put into the confirmation tank 265. As shown in FIG. 11 or FIG. 13, the confirmation tank 265 forms a flow path by alternately arranging partition plates 265 a on a bottom portion 265 b inclined on one side. Accordingly, the water from which the sludge is separated in the separation tank 264 can be circulated and visually confirmed from the upper opening of the flow path. Therefore, even if the sludge removal from the sewage is insufficient due to some trouble, the operator can immediately see the situation, so stop “reuse as cleaning water” or “discharge to the environment”. Thus, the influence on the “cleaning apparatus” or “environment” can be minimized. In addition, since one side of the bottom portion 265b of the confirmation tank 265 is inclined, if sludge remains in the circulated water, it settles in the deep portion of the inclined bottom, so that the precipitate is easily recovered. It becomes possible to do. Thus, according to the filtration part 260 concerning this embodiment, since sludge is removed in steps through each filtration process, it becomes possible to separate sewage into water and sludge reliably. It is. The water after the cleaning treatment (separated sludge) can be reused for the wall surface cleaning. Moreover, even if the water after the cleaning treatment is discharged into the natural environment, no load is applied to the environment. In the above embodiment, a flow path leading to the bottom 264b is formed between the inner peripheral surface of the outer cylinder 264a and the outer peripheral surface of the inner cylinder 264c, and the bottom portion is formed on the inner peripheral surface side of the inner cylinder 264c. Although the flow path from H.264b to the upper end of the outer cylinder 264a is configured, the present invention is not particularly limited to this configuration. That is, the inner peripheral surface side of the inner cylinder 264c may be a flow path leading to the bottom portion 264b, and the outer peripheral surface side of the inner cylinder 264c may be a flow path leading to the upper end portion of the outer cylinder 264a. Moreover, although the said filtration part 260 does not necessarily need to be mounted on the said vehicle base (truck), it may mount on a vehicle base and may be paralleled simultaneously with a washing | cleaning operation | work.

  According to the tunnel cleaning apparatus according to the above-described embodiment, the cleaning water is sprayed at a high pressure on all wall surfaces (except the ground) on the inner wall of the tunnel, so that “exhaust gas”, “dust”, etc. It is possible to easily and quickly remove the dirt that is deposited and adhered. That is, the high-pressure washing water enters the bottom of the “dirt layer” and peels it off. By peeling off the “dirt layer” in this way, the wall surface can be brought close to the original ground color (state before use). More specifically, for example, if it is indicated by a color chart in “2003 B edition standard color swatch book for paints” issued by the Japan Paint Industry Association, the original ground color of concrete is “color chart number: BN-95”. ”(Pure white), the wall surface that has been used for a long period of time without being washed is“ color chart number: BN-30 ”(infinitely close to black). The wall surface cleaned with the apparatus becomes “color chart number: BN-90” (gray that is almost white), and it can be seen that the brightness of the color is remarkably high before and after the cleaning. By increasing the brightness of the color of the inner wall surface of the tunnel, the light emitted from the lighting equipment installed in the tunnel is reflected without being absorbed by the wall surface, so that the lighting efficiency in the tunnel is improved. It is possible to prevent the occurrence of traffic accidents due to poor visibility.

  After performing the above cleaning, the inner wall surface of the tunnel is cleared to fill in the fine irregularities on the concrete surface of the inner wall, thereby smoothing out the subsequent dirt adhesion or subsequent cleaning. I will add some points that can be made.

  In addition, since the spray nozzles are arranged radially toward the ceiling surface and both wall surfaces of the tunnel in the frame 232 as the pedestal portion 230 of the cleaning device according to each embodiment described above, one or two operators By this operation, it becomes possible to spray high-pressure washing water simultaneously on the ceiling surface and both wall surfaces of the tunnel. That is, according to the cleaning apparatus of the present embodiment, the inner wall surface can be efficiently cleaned over a long distance by a small number of workers.

  Furthermore, when the cleaning water is jetted onto the inner wall surface of the tunnel by the cleaning device according to each of the embodiments described above, the sewage outflow to the surrounding environment is minimized by collecting the sewage in the water receiving tank 100. Can do. Then, after the collected sewage is purified, the purified sewage can be reused for cleaning.

  The cleaning device according to the present invention is more preferably configured so that it can be assembled and disassembled in a short time at the construction site. That is, it is carried in as divided parts until reaching the construction site, assembled at the construction site, and the tunnel is cleaned.

(A) It is a figure which shows the operation state of the washing | cleaning apparatus which concerns on one Embodiment from a tunnel cross-section direction. (B) It is a figure which shows the stop state of the washing | cleaning apparatus from a tunnel cross-section direction. It is a figure which expands and shows the use condition of the water receiving tank 100 shown to Fig.1 (a). It is a figure which shows the side surface of the water receiving tank 100 shown to Fig.1 (a) from diagonally upward. (A) It is a figure which shows the water receiving tank 100 which concerns on another Example from a tunnel cross-section direction. (B) It is an arrow A in FIG. (C) View B in FIG. 4a. (A) It is a figure which shows the water receiving tank 100 which concerns on another Example from a tunnel cross-section direction. (B) It is a side view which shows the state which connected the water-receiving tank 100 shown to FIG. 5a from the roadway side of a tunnel. It is a figure which shows the water receiving tank 100 which concerns on another Example from the tunnel cross-sectional direction. It is the figure which showed the state which has arrange | positioned multiple water-receiving tanks 100 shown in FIG. 3 side by side, and has arrange | positioned the joint 11 from diagonally upward. It is the figure which planarly viewed the connection part of the two water receiving tanks arrange | positioned along a curve wall surface. It is sectional drawing of the water receiving tank 100 which shows the shape of the water stop member 40 which concerns on other embodiment. It is a side view of the washing | cleaning apparatus shown to Fig.1 (a). It is a figure which shows the whole filtration part 260 which consists of the receiving tank 261, the preparation tank 262, the reaction tank 263, the separation tank 264, and the confirmation tank 265 in a present Example. It is the figure which showed the internal structure of the separation tank 264 shown in FIG. 11 from diagonally upward. It is the figure which showed the internal structure of the confirmation tank 265 shown in FIG. 11 from diagonally upward. It is a flowchart explaining the process of the sewage purification process by the filtration part 260 shown in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Front and rear side wall part 11 Joint member 20 Left-right paired side wall part 21 One side wall part 22 The other side wall part 30 Bottom part 40 Water stop member 50 High wall part 60 Through-hole 61 Seal member 70 Roller 80 Telescopic support tool 90 Clamping means 100 Water receiving tank 210 Tank part 220 Water supply part 230 Base part 231 Arm 232 Frame 233 Slider 240 Injection port (nozzle part)
250 Pumping unit 260 Filtration unit 261 Receiving tank 262 Preparation tank 263 Reaction tank 263a Water storage tank 263b Water pump 264 Separation tank 264a Outer cylinder 264b Bottom 264c Inner cylinder 264d Valve 265 Confirmation tank 265a Partition plate 265b Bottom

First, the invention according to claim 1 is a water receiving tank 100 that is disposed along the longitudinal direction of the tunnel below the inner wall surface of the tunnel and collects the sewage generated when the inner wall surface of the tunnel is washed. The water receiving tank 100 includes a box body having a pair of front and rear side wall portions 10, a pair of left and right side wall portions 20, and a bottom portion 30, and one side wall portion 21 of the pair of left and right side wall portions 20 is inclined outward. The one side wall 21 is leaned below the inner wall of the tunnel (including the side surface of the side road), so that the lower end of the one side wall 21 is raised with respect to the ground, and the other side wall 22 The lower end serves as a fulcrum, the upper end of the one side wall 21 is in close contact with the lower side of the inner wall surface of the tunnel, and the bottom 30 extends from the lower end of the one side wall 21 to the lower end of the other side wall 22. to be inclined toward the It is an butterfly.

Further, the invention according to claim 5 is the water receiving tank 100 according to any one of claims 1 to 4 , wherein one or both of the pair of front and rear side wall portions 10 is continuous with the other water receiving tank 100. When arranged, it is provided with a through hole 60 communicating with the other water receiving tank 100.

  The present invention relates to a water receiving tank that collects sewage generated when cleaning the inner wall surface of a tunnel to which dirt or dirt adheres, and in particular, exhibits high adhesion to the inner wall surface of the tunnel to efficiently wash sewage. It is related with the water receiving tank which implement | achieves collection | recovery.

  When a highway or general road tunnel is used for actual use, dirt derived from exhaust gas or dust adheres to the inner wall surface (ceiling surface and wall surface) of the tunnel. If such a dirt is not removed and the tunnel continues to be used for a longer period of time, the dirt will accumulate in layers.

  The ground color of the concrete that constitutes the inner wall surface of the tunnel is originally a gray color close to white, but the surface of the inner wall becomes darkened due to the accumulation of the dirt. Since the lightness of the color of the wall surface is lowered by darkening the wall surface, the light emitted from the luminaire installed in the tunnel is absorbed without being reflected by the wall surface.

  When such a tunnel is actually driven by a car or the like, not only the inside of the tunnel is felt extremely dark, but also it becomes difficult for the driver to grasp the sense of distance from the side wall, and the road shoulder There is no denying the risk of accidents such as getting on or touching the wall.

  In view of such a problem, various cleaning techniques have been devised because of the need to remove dirt adhering to the tunnel wall surface. Specifically, the simplest method is to build a “Yagura” (scaffold) in the tunnel and deploy a worker with a “thunder” (cutting machine) to the tunnel. Conventionally, the worker presses the sander against the inner wall surface of the tunnel and scrapes the surface of the inner wall together with “dirt”. In such a method, the concrete is also cut together with “dirt”, so that during the work, the noise generated by the cutting along with the operation sound of the sander in the tunnel is reflected in the tunnel. Because of the large amount of dust that floats, workers were forced to work under extremely harsh conditions. Although an apparatus for automating the cutting work has been devised, since the introduction cost is great, the problem of the “harsh working environment” has not been substantially solved.

  In order to solve such a problem, a method of cleaning by spraying cleaning water on the tunnel wall surface has been devised. However, if the “sewage” generated after washing is not collected in such a method, it will flow out of the tunnel through a gutter provided on the shoulder of the road, contaminating the river, soil or groundwater, resulting in serious problems. Will be caused.

  The technique described in Patent Document 1 has been devised to solve the above problem of “sewage outflow”. The technique described in Patent Document 1 relates to a tunnel wall surface cleaning vehicle, which collects cleaning liquid inside an “drainage passage” formed by an “air bag” provided in the cleaning vehicle and causes the cleaning liquid to flow. We were collecting sewage. According to such a configuration, since the drainage passage as a “receiving tray” is installed directly below the hose that supplies the cleaning water, it becomes possible to efficiently collect the sewage.

However, in the technique described in Patent Document 1, the cleaning vehicle performs cleaning while traveling in the longitudinal direction of the tunnel (longitudinal walking of the tunnel). The back and the tunnel wall surface rub against each other, the load concentrates on the drainage passage, and the drainage passage may be deformed, making it difficult to reliably collect sewage. Therefore, a means for efficiently and reliably collecting sewage has been desired.
Japanese Utility Model Publication No. 01-147100

  In view of the above problems, an object of the present invention is to provide a water receiving tank that enables reliable collection of dirty water at a low cost with a simple configuration.

  Means taken by the present invention to solve the above problems are as follows.

First, the invention according to claim 1 is a water receiving tank 100 that is disposed along the longitudinal direction of the tunnel below the inner wall surface of the tunnel and collects the sewage generated when the inner wall surface of the tunnel is washed. The water receiving tank 100 includes a box body having a pair of front and rear side wall portions 10, a pair of left and right side wall portions 20, and a bottom portion 30, and one side wall portion 21 of the pair of left and right side wall portions 20 is inclined outward. The one side wall 21 is leaned under the inner wall of the tunnel (including the side surface of the side road), so that the lower end of the one side wall 21 is lifted with respect to the ground and the splashing of washing water is prevented. the lower end of the other side wall portion 22 formed by erecting high wall portion 50 which becomes a fulcrum, the protruding portion of the water-stop member 40 of the one side wall portion 21 is in close contact against the lower tunnel wall , The bottom 30 is one side wall 2 It is characterized in that towards the lower end to the lower end portion of the other side wall portion 22 of the tilt.

  Next, in the invention according to claim 2, in the water receiving tank 100 according to claim 1, the water blocking member 40 is provided along the longitudinal direction of the upper end of the one side wall portion 21 leaning under the inner wall of the tunnel. It is characterized by being provided to protrude.

  Further, the invention according to claim 3 is the water receiving tank 100 according to claim 1, wherein the water blocking member 40 is provided along the longitudinal direction of the outer side surface of the one side wall portion 21 leaning down below the inner wall of the tunnel. It is characterized by being affixed.

Delete

Furthermore, the invention according to claim 4 is the water receiving tank 100 according to any one of claims 1 to 3 , wherein one or both of the pair of front and rear side wall portions 10 is continuous with the other water receiving tank 100. When arranged, it is provided with a through hole 60 communicating with the other water receiving tank 100.

Subsequently, the invention according to claim 5 is the water receiving tank 100 according to claim 4 , wherein the through hole 60 provided in one or both of the pair of front and rear side wall portions 10 has a through hole 60 in another water receiving tank 100. The sealing member 61 for preventing the water leak from between is provided.

The invention which concerns on Claim 6 WHEREIN: In the water receiving tank 100 in any one of Claim 1 thru | or 5 , when arrange | positioning continuously with the other water receiving tank 100 in the upper end part of a pair of front and back side wall part 10 The joint member 11 is provided to prevent water leakage from between the side wall portion of the other water receiving tank 100.

The invention according to claim 7 is the water receiving tank 100 according to any one of claims 1 to 6 , wherein a roller 70 is provided on the bottom surface of the water receiving tank 100 to be movable on the road surface. It is what.

According to an eighth aspect of the present invention, in the water receiving tank 100 according to the seventh aspect , at least two rollers 70 are provided on the bottom surface of the water receiving tank 100, and of these rollers 70, the roller 70 on the tunnel wall surface side is telescopic. It is characterized in that it is provided via a supporting tool 80.

According to a ninth aspect of the present invention, there is provided a cleaning device for an inner wall surface of a tunnel, which is mounted on a vehicle base and stores a tank portion for storing cleaning water, and the cleaning water supplied (inhaled) from the tank portion 210 at a high pressure. A water supply unit 220 for performing the above operation, an injection port 240 for injecting the cleaning water delivered from the water supply unit 220 to the inner wall surface of the tunnel, a pedestal unit 230 for placing the injection port 240 close to the tunnel wall surface, and a tunnel Any one of claims 1 to 8 , wherein the sewage is disposed below the inner wall surface along the longitudinal direction of the tunnel, and the sewage generated by spraying cleaning water from the injection port 240 onto the inner wall surface of the tunnel is recovered. The water receiving tank 100 described above, a pumping unit 250 that sucks sewage stored in the water receiving tank 100, and a filtering unit 260 that separates sludge from the sewage sucked by the pumping unit 250. It is characterized in that it has a.

According to a tenth aspect of the present invention, in the tunnel inner wall surface cleaning device according to the ninth aspect , the receiving tank 261 that receives the sewage primarily stored in the water receiving tank 100 and stabilizes the sewage, and the receiving tank And a filtration tank 260 including a mixing tank 262 that is charged with the reagent together with the sewage in the H.261 and agitated, and a separation tank 264 that separates the sewage stirred with the reagent in the mixing tank 262 into water and sludge. It is characterized by.

According to an eleventh aspect of the present invention, in the tunnel inner wall surface cleaning device according to the tenth aspect , the outer cylinder 264a communicating with the mortar-shaped bottom 264b and the outer cylinder 264a are disposed inside the outer cylinder 264a. A flow path that leads to the bottom portion 264b by partitioning a part of the inner space of the inner cylinder, and an inner cylinder inner cylinder 264c that forms a flow path from the bottom portion 264b to the upper end portion of the outer cylinder 264a. The separation tank 264 is provided.

  The effects obtained by adopting the above means are as follows.

First, the water receiving tank 100 in claim 1 is configured such that one side wall portion 21 of the pair of left and right side wall portions 20 is inclined outward. Therefore, when the one side wall 21 is stood below the inner wall of the tunnel, the lower end of the other side wall 22 facing the one side wall 21 serves as a fulcrum and the lower end of the one side wall 21 The upper part of the one side wall part 21 leans against the lower part of the inner wall surface of the tunnel (including the side surface of the side road). Therefore, the upper end portion comes into close contact with the inner wall surface.
That is, according to the water receiving tank 100 of the invention according to claim 1, the cleaning sewage can be recovered by entering the box having the pair of front and rear side wall portions 10, the pair of left and right side wall portions 20, and the bottom portion 30. In addition, since the one side wall portion 21 leans against the tunnel inner wall side, the water receiving tank 100 itself is in close contact with the tunnel inner wall without pressing the water receiving tank 100 toward the inner wall surface of the tunnel.

  Next, the water receiving tank 100 according to claim 2 is configured such that the “water blocking member 40” is projected along the longitudinal direction of the upper end of the one side wall portion 21 leaning under the inner wall of the tunnel. When the water receiving tank 100 is leaning against the inner wall of the tunnel, the protruding portion of the water stop member 40 is bent along the lower side of the tunnel inner wall (including the side surface of the side road). Therefore, at the curve point of the tunnel, the gap between the “wall surface” forming an arc and the “one side wall portion 21” forming a straight line is filled, so that the one side wall portion 21 and the tunnel inner wall surface It is possible to satisfactorily prevent the washing sewage from leaking out of the space.

  In addition, the water receiving tank 100 according to claim 3 is constituted by sticking a “water-stop member 40” along the longitudinal direction on the outer side surface of the one side wall portion 21 standing under the inner wall of the tunnel. It is possible to satisfactorily prevent the cleaning sewage from leaking from between the one side wall 21 and the inner wall surface of the tunnel.

  Furthermore, the main use of the water receiving tank 100 according to the present invention is to collect sewage generated when cleaning is performed by spraying cleaning water onto the tunnel wall surface with a high-pressure spray device. A part of the washing water sprayed at a high pressure on the wall surface will be splashed and scattered around. Therefore, in the invention according to claim 4, since the high wall portion 50 is erected on the “other side wall portion 22” arranged on the roadway side, it is possible to effectively prevent splashes from being scattered on the roadway side. Become.

The water receiving tank 100 according to claim 4 has a through hole 60 communicating with another water receiving tank 100 adjacent to each other in one or both of the pair of front and rear side wall portions 10. Therefore, it is possible to configure one water channel by the plurality of water receiving tanks 100 continuously arranged along the longitudinal direction of the tunnel. Therefore, when the sewage in the water receiving tank 100 is sucked, it is only necessary to suck from a part of the water receiving tanks 100, and it is not necessary to suck from all of the plurality of water receiving tanks 100, so the suction work can be reduced. It becomes possible.

The water receiving tank 100 according to claim 5 has a seal member 61 for preventing water leakage from between the through holes 60 in the other water receiving tanks 100 in the through holes 60 provided in the side wall portions. Therefore, it is possible to prevent water leakage from the joints between the through holes 60 provided in the side wall portions.

Since the water receiving tank 100 in claim 6 has the joint member 11 for preventing water leakage from between the side walls of the other water receiving tanks 100 at the upper ends of the pair of front and rear side walls, the water receiving tank 100 is generated at the time of cleaning the tunnel wall surface. Thus, it is possible to prevent water leakage due to the sewage entering between the front and rear side walls in the plurality of water receiving tanks 100.

Since the water receiving tank 100 in claim 7 has the roller 70 on its bottom surface, it can be easily moved along the longitudinal direction of the tunnel as the cleaning operation proceeds. Further, the water receiving tank 100 can be pulled by a vehicle or the like equipped with a cleaning device or the like. In that case, since the cleaning operation can be continued without interruption, the work efficiency can be dramatically improved.

In the water receiving tank 100 according to the eighth aspect , among the rollers 70 provided at at least two locations on the bottom surface, the roller 70 disposed on the tunnel wall surface side is provided via a telescopic support 80. Therefore, even when the water receiving tank 100 is pulled, when the sewage enters the main water receiving tank 100, the support 80 sinks due to the weight of the sewage and faces the side wall 21. Since the upper end portion of the one side wall portion 21 leans against the lower side of the inner wall surface of the tunnel with a roller 70 (not stretchable) provided on the lower side of the other side wall portion 22 as a fulcrum, the upper end portion is It becomes possible to make it contact | adhere with respect to a wall surface.

According to the cleaning device for the inner wall surface of the tunnel according to the ninth aspect of the invention, the water supply unit 220 sends out the cleaning water stored in the tank unit 210 at a high pressure, and the inside of the tunnel from the injection port 240 disposed in the pedestal unit 230. By spraying on the wall surface, the soot and dirt adhering to the inner wall surface of the tunnel are washed away, and the sewage can be recovered by the water receiving tank 100 according to any one of claims 1 to 9. And while the sewage stored in the said receiving tank 100 is attracted | sucked by the pumping part 250, after separating sludge from the said sewage in the filtration part 260, it becomes possible to reuse for washing | cleaning of the inner wall surface of a tunnel.

  That is, according to the present invention, a small number of workers can be cleaned in a short working time, and the sewage generated when the tunnel inner wall surface is cleaned is collected and filtered and reused for the cleaning. It is possible to provide a possible cleaning device at a low cost.

The tunnel inner wall surface cleaning apparatus according to claim 10 includes a receiving tank 261 in which the filtering unit 260 is charged with sewage primarily stored in the water receiving tank 100 to stabilize the sewage, and the sewage in the receiving tank 261. Because it has a mixing tank 262 that is charged with a reagent (precipitation accelerator or the like for quickly precipitating suspended matter contained in wastewater) and stirred, and a separation tank 264 that separates the wastewater into water and sludge. The sludge contained in the sewage can be removed step by step in each filtration process. That is, according to the present invention, sludge can be efficiently separated from sewage.

In the cleaning device for the inner wall surface of the tunnel according to claim 11 , the separation tank 264 is disposed inside the outer cylinder 264a communicating with the mortar-shaped bottom portion 264b, and inside the outer cylinder 264a, and the inner space of the outer cylinder 264a. A flow path leading to the bottom portion 264b by partitioning a part is provided, and an inner cylinder constituting a flow path extending from the bottom portion 264b to the upper end portion of the outer cylinder 264a is provided. Therefore, the sewage stirred together with the reagent in the preparation tank 262 reaches the bottom 264b through a flow path in which a part of the inner space of the outer cylinder 264a is partitioned by the inner cylinder 264c, and has a heavy specific gravity “sludge”. On the other hand, “water” having a low specific gravity rises in the flow path to the upper end of the outer cylinder 264a and is discharged to the outside of the separation tank 264 by overflowing while being deposited on the mortar-shaped bottom 264b. . That is, according to the present invention, sludge can be more efficiently and reliably separated from sewage.

  When the water receiving tank 100 according to the present invention is disposed along the longitudinal direction of the tunnel below the inner wall surface of the tunnel (including the side surface of the side road) and cleans the inner wall surface of the tunnel as shown in FIG. It collects sewage generated in The main water tank 100 mainly includes a “box” made up of front and rear side walls 10 and 20 (see FIG. 2) and a bottom 30. The water receiving tank 100 according to the present invention includes a “high wall portion 50” (see FIG. 2) for preventing splashes generated during cleaning and a “roller 70” (see FIG. 2) for facilitating the movement of the water receiving tank 100. 5) or the like may be added. Hereinafter, each component will be described.

  First, the “box” is for collecting and collecting the sewage generated during the cleaning of the inner wall surface of the tunnel. As shown in FIG. 2 or FIG. The side wall portion 20 ”,“ a pair of front and rear side wall portions 10 ”constituting the end surface of the water receiving tank 100, and“ bottom portion 30 ”constituting the bottom surface of the water receiving tank 100. If the mechanical strength and rust prevention property can be secured, the material of the box is not limited, but it may be configured by bending or welding the “bonded steel plate”, for example. .

  Of the “a pair of left and right side wall portions 20”, “one side wall portion 21” is configured to be inclined outward. By adopting such a configuration, when the one side wall portion 21 is leaned under the tunnel inner wall (or side road), the lower end portion of the other side wall portion 22 facing the one side wall portion 21 serves as a fulcrum. Thus, the lower end portion of the one side wall portion 21 floats with respect to the ground, and the upper end portion of the one side wall portion 21 leans against the lower side of the inner wall surface of the tunnel. Therefore, the said upper end part will contact | adhere (closely) with respect to an inner wall surface. Here, when the “water blocking member 40” is configured to protrude along the longitudinal direction of the upper end of the one side wall portion 21, when the water receiving tank 100 is leaning against the inner wall of the tunnel, The protruding portion of the water member 40 bends along the lower side of the tunnel inner wall (including the side surface of the side road). Therefore, at the curve point of the tunnel, the gap between the “wall surface” forming an arc and the “one side wall portion 21” forming a straight line is filled, so that the one side wall portion 21 and the tunnel inner wall surface It is possible to prevent the cleaning sewage from leaking out of the space. Specifically, as shown in FIG. 9, a slit is formed along the longitudinal direction of the water blocking member 40, and the “one end of one side wall portion 21” enters the slit, thereby It is conceivable to provide the water stop member 40 so as to protrude from the upper end of the side wall portion 21 ". On the other hand, when the “water-stop member 40” is attached along the longitudinal direction of the outer side surface of the one side wall 21, the water-stopping tank 100 is in a state of leaning against the inner wall of the tunnel. By deforming in the thickness direction of the water member 40, the gap between the “wall surface” and the “one side wall portion 21” is filled. Therefore, it is possible to prevent the cleaning sewage from leaking out between the one side wall 21 and the inner wall surface of the tunnel. Even in the configuration of “sticking” as described above, as shown in FIG. 2 or FIG. 3, the “water blocking member 40” is provided so as to protrude from the upper end of the “one side wall portion 21”. In this case, leakage of cleaning sewage can be prevented even at a curve point.

  One or both of the “front and rear pair of side wall portions 10” may be provided with through holes 60 communicating with other water receiving tanks 100 adjacent to each other as necessary. When such a configuration is adopted, a single “water channel” can be configured by the plurality of water receiving tanks 100 arranged continuously along the longitudinal direction of the tunnel. Therefore, when the sewage in the water receiving tank 100 is sucked, it is only necessary to suck from a part of the water receiving tanks 100, and it is not necessary to suck from all of the plurality of water receiving tanks 100, so the suction work can be reduced. It becomes possible. In the present invention, the position and shape of the through-hole 60 are not particularly limited as long as the through-hole 60 is provided in the “front and rear side wall portions”, but one or more circular or polygonal through holes are provided near the bottom portion 30. It is conceivable that a hole 60 is provided (see FIGS. 2 and 3), or a large U-shape is cut out from the upper end to communicate with another adjacent water receiving tank 100 (see FIG. 4). In addition, when the through-hole 60 provided in the side wall part is configured, there is a risk of water leakage from a joint with the through-hole 60 in another water receiving tank 100, so the peripheral edges of the through-holes 60 communicating with each other are It is necessary to seal with the seal member 61. Regarding the seal member 61, specifically, a rubber member having a substantially U-shaped cross section may be configured along the shape of the through hole 60. In the water receiving tank 100 arranged at a position corresponding to the end of the “water channel”, the “through hole 60” needs to be closed with a “plug” formed of synthetic rubber or the like.

  Next, the “high wall portion 50” prevents splashes generated when the washing water is sprayed on the inner wall surface of the tunnel by the high-pressure spraying device and is scattered on the roadway side. It is to be established. The structure is not particularly limited as long as it achieves such an action, but in the embodiment shown in FIG. 2, the aluminum plate is inserted into the support portion provided on the bottom portion 30 of the box to stand upright. And it overlaps so that it may not conflict with the splash prevention plate hung down by the vehicle base (after-mentioned), and the splash of the said splash is prevented more effectively. In addition, it is suitable if the said high wall part 50 is comprised detachably for the convenience at the time of conveying this water receiving tank 100. FIG.

  Further, as shown in FIGS. 5A and 5B, one or more “rollers 70” are arranged on the bottom surface of the water receiving tank 100, and move on the road surface as the cleaning operation proceeds. It is something that makes it easy. In particular, when four water tanks are provided, the water receiving tank 100 can be made independent. By adopting the configuration including the roller 70, the water receiving tank 100 can be pulled by a vehicle or the like equipped with a cleaning device or the like. When such a configuration is adopted, the cleaning operation can be continued without interruption, so that the work efficiency can be drastically improved.

  In the present invention, the above-mentioned “roller 70” may be a roller whose traveling direction is fixed, or whose traveling direction is adjustable in angle. When such a configuration is adopted and the traveling direction of the roller 70 is fixed toward the inner wall surface side of the tunnel and the main water receiving tank 100 is pulled, as the water receiving tank 100 moves in the tunnel longitudinal direction, The water receiving tank 100 can be brought close to the tunnel inner wall surface.

  As shown in FIG. 6, the roller 70 is provided in at least two places on the bottom surface of the water receiving tank 100, and the roller 70 arranged on the tunnel wall surface side is provided via a telescopic support 80. May be. In this case, even when the water receiving tank 100 is pulled, when the sewage enters the water receiving tank 100, the weight of the sewage reaches the support 80, and the side wall 21 and The upper end portion of the one side wall portion 21 leans against the lower side of the inner wall surface of the tunnel with the roller 70 provided (not stretchable) provided on the lower side of the opposite side wall portion 22 as a fulcrum. It will be in close contact with the inner wall surface. The structure of the support is not particularly limited as long as it can be expanded and contracted. Specifically, by placing an elastic body such as a coil spring or elastomer resin inside the telescope structure, a repulsion can be achieved. It can be considered to have a configuration with power.

  Then, the usage method of the said water-receiving tank 100 is demonstrated. The water receiving tank 100 according to the present invention is used for collecting the sewage generated when the inner wall surface of the tunnel is washed, and extends along the longitudinal direction of the tunnel below the inner wall surface of the tunnel (or on the side surface of the side road). Are arranged to form a “waterway”. In the present invention, the longitudinal dimension of the water receiving tank 100 is not particularly limited. Specifically, it is conceivable to prepare two types, a short type having a total length of 1 m and a long type having a total length of 3 m. When constructing a waterway along the curved part (curve) of the tunnel, the gap between the water receiving tank 100 and the inner wall surface of the tunnel is minimized by arranging the short-type water receiving tank 100 continuously. Is possible. On the other hand, when the water channel is constructed along the straight part of the tunnel, it is possible to minimize the connection work between the water receiving tanks 100 by arranging the long-type water receiving tanks 100 continuously. Become.

  Then, the front and rear side wall portions 10 in the water receiving tanks 100 adjacent to each other are brought into close contact with each other, and the “joint member 11” having a substantially U-shaped cross section (a substantially U-shaped cross section) is fitted from the upper ends of the both side wall portions 10. Sealing to prevent water leakage between the receiving tanks. Moreover, when the water receiving tanks adjacent to each other are connected by the side wall portions 10, water leakage can be prevented more reliably. In that case, it is necessary to hold these both side wall portions 10 so as not to be separated by the pinching means 90. In this embodiment, as shown in FIG. 4 (b), the receiving tanks 100 are separated from each other by pressing and fitting a substantially U-shaped clip in side view (substantially U-shaped in side view) from above the side wall portion 10. Is preventing. In particular, when pulling a water channel composed of a plurality of water receiving tanks 100, the necessity of holding by the clamping means 90 increases. The pinching means 90 may be pressed from above the joint member 11 mounted on the side wall 10 as shown in FIG. Further, as shown in FIG. 8, it is preferable that the pinching means 90 is attached only to the side wall 10 on the curvature center side constituting the arc of the curve at the curve point in the tunnel, and the other is released. Of course, even in this case. The pinching means 90 may be press-fitted directly to the side wall portion 10 (that is, below the joint 11). As shown in FIGS. 7 and 8, the “joint member 11” has an end shape that can be in close contact with the “water blocking member 40” protruding from the upper end of the “one side wall portion 21”. The water stop member 40 protruding from the upper end of the one side wall portion 21 may be pressed toward the inner wall surface of the tunnel from the side surface or the upper end to increase the degree of adhesion of the water stop member 40 to the inner wall surface of the tunnel. . Further, it is conceivable that the joint member 11 that covers the side wall portions 10 of the water receiving tanks 100 adjacent to each other from the upper end is configured with a wide dimension to prevent water leakage between the water receiving tanks.

  Next, a “cleaning apparatus” in which the water receiving tank 100 is incorporated in a part of the system will be described with reference to an example described later. In addition, the following Example shows only one Embodiment of this invention, and the technical idea of this invention is not limited to this.

  FIG. 1 or FIG. 10 shows an embodiment of the cleaning apparatus. The cleaning apparatus according to the present embodiment is mounted on a vehicle base (truck) as shown in FIG. 10, and in addition to the water receiving tank 100, a tank unit 210, a plurality of water supply units 220, a pedestal unit 230, It has the injection port 240, the pumping part 250, and the filtration part 260. FIG. Hereinafter, each configuration will be sequentially described.

First, the “tank part 210” stores cleaning water, and supplies cleaning water to an injection device described later. In the present embodiment, two “2,000 L capacity water storage tanks” as the tank portion 210 are mounted on the loading platform of the vehicle base (truck). Of course, the quantity of the tank part 210 is not particularly limited in the present invention. Any one of the two or more water storage tanks may be used as a “collection tank” in FIG. 14 to temporarily store sewage collected by the water receiving tank 100.

  Next, the “water supply part 220” is for sending the cleaning water supplied (sucked) from the tank part 210 to the injection port 240 (described later) arranged on the pedestal part 230 at a high pressure. Specifically, it is conceivable to use a high pressure washer driven by an engine or an electric motor for the water supply unit 220. In this embodiment, a frame (storage shelf) is assembled above the truck bed, and nine “high pressure washing machines (JC-2014GP) manufactured by Seiwa Sangyo Co., Ltd.” are installed there. In the present embodiment, the water supply unit 220 covers the two injection ports 240 with a single high-pressure washing machine.

  Further, as shown in FIG. 1A, the “pedestal portion 230” is for arranging a plurality of injection ports 240 (to be described later) for injecting cleaning water so as to approach the tunnel wall surface. The frame 232 is formed in an arc shape corresponding to the shape of the slider, and the slider 233 is slidable in the left-right direction on the truck bed. In the present embodiment, the slider 233 needs to have a movable range longer than the width of the side road so that the inner wall surface of the tunnel can be washed over the side road (or management passage) from the roadway side. In order to slide the frame 232 in the lateral direction, power such as a motor or a cylinder may be used, or an operator may manually slide the frame 232. In this embodiment, the frame 232 is slid using a hydraulic cylinder as a power source. However, the present invention is not limited to this, and an “electric motor” is adopted as a power source, and a “chain”, “belt” or “gear” is adopted as a power transmission means, and the frame 232 is slid. May be. In the present embodiment, the arcuate frame 232 in the pedestal portion 230 is supported by an arm 231 that is rotated by a hydraulic cylinder, as shown in FIG. Is folded inward at about one third of the position, so that compact storage is possible, which contributes to convenience during movement and storage.

  As shown in FIG. 1 (a), a plurality of “injection ports 240” are installed on the pedestal portion 230, and inject cleaning water sent from the water supply portion 220 onto the inner wall surface of the tunnel. It is. It is more preferable that the injection port 240 is provided so as to be movable forward and backward with respect to the frame 232. That is, when the tip position of the injection port 240 can be moved forward and backward, there is a possibility that the tip of the injection port 240 may interfere with the “inner wall surface of the tunnel” or the “structure” installed inside the tunnel. However, the interference can be prevented by retracting the injection port 240. In addition, by installing a sensor near the injection port 240 itself or in the vicinity of the injection port 240, when the sensor anticipates the interference of the injection port 240 with a structure or an inner wall surface in the tunnel, the injection port 240 May be employed to avoid interference with the structure or the like.

  The “pumping unit 250” sucks “sewage” generated when cleaning is performed from the water receiving tank 100 and puts it into the collection tank. In particular, when washing is performed while pulling and moving a “water channel” formed by connecting a plurality of water receiving tanks 100 by the vehicle base (truck), the “submersible pump” is suspended from the truck bed. It is conceivable that the suction port is placed in the water receiving tank 100 while being arranged. On the other hand, when washing is performed in a state where the water channel 100 formed by connecting a plurality of water receiving tanks 100 is not pulled, it may be provided at the end of the water channel. It is not necessary to mount it on the loading platform. In this embodiment, a suction port is provided at the end of a “water channel” formed by connecting a plurality of water receiving tanks 100, and the discharge port of the pump is connected to a water storage tank (collection tank) on the truck bed. Thus, cleaning water and sewage can be sucked and introduced into the water storage tank.

  The “filtration unit 260” removes “concrete pieces”, “slags”, “oils and fats” and the like contained in the sewage collected in the water receiving tank 100 from the sewage. When the sewage collected by the water receiving tank 100 is reused for wall cleaning, it is necessary to remove impurities contained in the sewage. As shown in FIG. 11 or FIG. 14 (flow diagram), the filtration unit 260 includes “receiving tank 261”, “preparation tank 262”, “reaction tank 263”, “separation tank 264”, and “confirmation tank 265”. It will be. First, sewage collected from the water receiving tank 100 and primarily stored in a collection tank (not shown) is introduced into the receiving tank 261 by the water supply pump 263b, and the sewage is stabilized in the receiving tank 261. Next, the sewage is introduced into the preparation tank 262 from the receiving tank 261 and a reagent is added, and stirring is performed by rotating a propeller (having a hole for promoting stirring) with a power motor. The reagent introduced here refers to a neutralizing agent for neutralizing sewage (washing water) having increased acidity or a precipitation accelerator for quickly precipitating suspended matters contained in the sewage. . In other words, the wash water before washing is almost neutral and does not contain suspended solids, but the waste water generated by washing contains acid substances, so the acidity rises and various kinds of “soil” are included. The substance will float in the sewage. Since the cleaning apparatus according to the present invention assumes that the recovered sewage is also used for cleaning again, it is necessary to neutralize the sewage or to remove floating substances in the recovery process. Therefore, it is necessary to add the reagent into the mixing tank 262 together with the sewage and stir. The propeller in the mixing tank 262 is fed into the reaction tank 263 when the sewage is stirred. In the reaction tank 263, stirring is performed by rotating a propeller (having a hole for promoting stirring) with a power motor in order to promote a chemical reaction between the sewage and the reagent. In FIG. 8, the reaction vessel 263 in this embodiment is provided with two propellers, one of which is set so as to push the flow path in the reverse direction, and gradually into the water storage tank 263a provided immediately below. It is configured so that sewage flows. The sewage temporarily stored in the water storage tank 263a is sent to the separation tank 264 by a liquid feed pump and separated into water and sludge (sludge). As shown in FIG. 11 or FIG. 12, the separation tank 264 has a double structure having an inner cylinder 264c inside an outer cylinder 264a provided with a bottom 264b, and the sewage sent from the water storage tank 263a is the inner cylinder 264c. And the bottom of the separation tank 264 proceeds to the bottom 264b. Since the bottom 264b of the separation tank 264 has a mortar shape, sludge accumulates from the tip of the cone. After a certain amount has accumulated, it is released by operating the valve 264d provided at the tip of the cone, and the sludge is taken out. On the other hand, the water after cleaning separated from the sludge rises through the inner cylinder 264c and overflows from the upper end (see FIG. 12) of the inner cylinder 264c to the outside of the separation tank 264. It will be discharged and put into the confirmation tank 265. As shown in FIG. 11 or FIG. 13, the confirmation tank 265 forms a flow path by alternately arranging partition plates 265 a on a bottom portion 265 b inclined on one side. Accordingly, the water from which the sludge is separated in the separation tank 264 can be circulated and visually confirmed from the upper opening of the flow path. Therefore, even if the sludge removal from the sewage is insufficient due to some trouble, the operator can immediately see the situation, so stop “reuse as cleaning water” or “discharge to the environment”. Thus, the influence on the “cleaning apparatus” or “environment” can be minimized. In addition, since one side of the bottom portion 265b of the confirmation tank 265 is inclined, if sludge remains in the circulated water, it settles in the deep portion of the inclined bottom, so that the precipitate is easily recovered. It becomes possible to do. Thus, according to the filtration part 260 concerning this embodiment, since sludge is removed in steps through each filtration process, it becomes possible to separate sewage into water and sludge reliably. It is. The water after the cleaning treatment (separated sludge) can be reused for the wall surface cleaning. Moreover, even if the water after the cleaning treatment is discharged into the natural environment, no load is applied to the environment. In the above embodiment, a flow path leading to the bottom 264b is formed between the inner peripheral surface of the outer cylinder 264a and the outer peripheral surface of the inner cylinder 264c, and the bottom portion is formed on the inner peripheral surface side of the inner cylinder 264c. Although the flow path from H.264b to the upper end of the outer cylinder 264a is configured, the present invention is not particularly limited to this configuration. That is, the inner peripheral surface side of the inner cylinder 264c may be a flow path leading to the bottom portion 264b, and the outer peripheral surface side of the inner cylinder 264c may be a flow path leading to the upper end portion of the outer cylinder 264a. Moreover, although the said filtration part 260 does not necessarily need to be mounted on the said vehicle base (truck), it may mount on a vehicle base and may be paralleled simultaneously with a washing | cleaning operation | work.

  According to the tunnel cleaning apparatus according to the above-described embodiment, the cleaning water is sprayed at a high pressure on all wall surfaces (except the ground) on the inner wall of the tunnel, so that “exhaust gas”, “dust”, etc. It is possible to easily and quickly remove the dirt that is deposited and adhered. That is, the high-pressure washing water enters the bottom of the “dirt layer” and peels it off. By peeling off the “dirt layer” in this way, the wall surface can be brought close to the original ground color (state before use). More specifically, for example, if it is indicated by a color chart in “2003 B edition standard color swatch book for paints” issued by the Japan Paint Industry Association, the original ground color of concrete is “color chart number: BN-95”. ”(Pure white), the wall surface that has been used for a long period of time without being washed is“ color chart number: BN-30 ”(infinitely close to black). The wall surface cleaned with the apparatus becomes “color chart number: BN-90” (gray that is almost white), and it can be seen that the brightness of the color is remarkably high before and after the cleaning. By increasing the brightness of the color of the inner wall surface of the tunnel, the light emitted from the lighting equipment installed in the tunnel is reflected without being absorbed by the wall surface, so that the lighting efficiency in the tunnel is improved. It is possible to prevent the occurrence of traffic accidents due to poor visibility.

  After performing the above cleaning, the inner wall surface of the tunnel is cleared to fill in the fine irregularities on the concrete surface of the inner wall, thereby smoothing out the subsequent dirt adhesion or subsequent cleaning. I will add some points that can be made.

  In addition, since the spray nozzles are arranged radially toward the ceiling surface and both wall surfaces of the tunnel in the frame 232 as the pedestal portion 230 of the cleaning device according to each embodiment described above, one or two operators By this operation, it becomes possible to spray high-pressure washing water simultaneously on the ceiling surface and both wall surfaces of the tunnel. That is, according to the cleaning apparatus of the present embodiment, the inner wall surface can be efficiently cleaned over a long distance by a small number of workers.

  Furthermore, when the cleaning water is jetted onto the inner wall surface of the tunnel by the cleaning device according to each of the embodiments described above, the sewage outflow to the surrounding environment is minimized by collecting the sewage in the water receiving tank 100. Can do. Then, after the collected sewage is purified, the purified sewage can be reused for cleaning.

  The cleaning device according to the present invention is more preferably configured so that it can be assembled and disassembled in a short time at the construction site. That is, it is carried in as divided parts until reaching the construction site, assembled at the construction site, and the tunnel is cleaned.

(A) It is a figure which shows the operating state of the washing | cleaning apparatus which concerns on one Embodiment from a tunnel cross-section direction. (B) It is a figure which shows the stop state of the washing | cleaning apparatus from a tunnel cross-section direction. It is a figure which expands and shows the use condition of the water receiving tank 100 shown to Fig.1 (a). It is a figure which shows the side surface of the water receiving tank 100 shown to Fig.1 (a) from diagonally upward. (A) It is a figure which shows the water receiving tank 100 which concerns on another Example from a tunnel cross-sectional direction. (B) It is an arrow A in FIG. (C) View B in FIG. 4a. (A) It is a figure which shows the water receiving tank 100 which concerns on another Example from a tunnel cross-sectional direction. (B) It is a side view which shows the state which connected the water-receiving tank 100 shown to FIG. 5a from the roadway side of a tunnel. It is a figure which shows the water receiving tank 100 which concerns on another Example from the tunnel cross-sectional direction. It is the figure which showed the state which has arrange | positioned multiple water-receiving tanks 100 shown in FIG. 3 side by side, and has arrange | positioned the joint 11 from diagonally upward. It is the figure which planarly viewed the connection part of the two water-receiving tanks arrange | positioned along a curve wall surface. It is sectional drawing of the water receiving tank 100 which shows the shape of the water stop member 40 which concerns on other embodiment. It is a side view of the washing | cleaning apparatus shown to Fig.1 (a). It is a figure which shows the whole filtration part 260 which consists of the receiving tank 261, the preparation tank 262, the reaction tank 263, the separation tank 264, and the confirmation tank 265 in a present Example. It is the figure which showed the internal structure of the separation tank 264 shown in FIG. 11 from diagonally upward. It is the figure which showed the internal structure of the confirmation tank 265 shown in FIG. 11 from diagonally upward. It is a flowchart explaining the process of the sewage purification process by the filtration part 260 shown in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Front and rear side wall part 11 Joint member 20 Left-right paired side wall part 21 One side wall part 22 The other side wall part 30 Bottom part 40 Water stop member 50 High wall part 60 Through-hole 61 Seal member 70 Roller 80 Telescopic support tool 90 Clamping means 100 Water receiving tank 210 Tank part 220 Water supply part 230 Base part 231 Arm 232 Frame 233 Slider 240 Injection port (nozzle part)
250 Pumping unit 260 Filtration unit 261 Receiving tank 262 Preparation tank 263 Reaction tank 263a Water storage tank 263b Water pump 264 Separation tank 264a Outer cylinder 264b Bottom 264c Inner cylinder 264d Valve 265 Confirmation tank 265a Partition plate 265b Bottom

Claims (12)

A water receiving tank that is disposed along the longitudinal direction of the tunnel below the inner wall surface of the tunnel and collects sewage generated when the inner wall surface of the tunnel is washed,
The water receiving tank is composed of a box having a pair of front and rear side walls, a pair of left and right side walls and a bottom,
One side wall portion of the pair of left and right side wall portions is inclined outward, and the one side wall portion leans below the inner wall of the tunnel so that the lower end portion of the one side wall portion is lifted with respect to the ground. And a lower end portion of the other side wall portion serves as a fulcrum, and an upper end portion of the one side wall portion is in close contact with a lower portion of the inner wall surface of the tunnel. In the water receiving tank according to claim 1,
A water receiving tank, characterized in that a water-stopping member is provided on one side wall portion, which is leaned under the inner wall of the tunnel, along the longitudinal direction of the upper end thereof. In the water receiving tank according to claim 1,
A water-receiving tank, wherein a water-stopping member is attached to one side wall portion leaning under a tunnel inner wall along the longitudinal direction of the outer surface thereof. In the water receiving tank according to any one of claims 1 to 3,
A water receiving tank, wherein the other side wall is provided with a high wall for preventing scattering of cleaning water. In the water receiving tank according to claim 1 to claim 4,
One or both of the pair of front and rear side wall portions are provided with a through-hole communicating with another water receiving tank when continuously disposed with the other water receiving tank. In the water receiving tank according to claim 5,
A water receiving tank, wherein a seal member is provided in a through hole provided in one or both of a pair of front and rear side walls to prevent water leakage from a through hole in another water receiving tank. In the water receiving tank according to any one of claims 1 to 6,
At the upper end of the pair of front and rear side walls, a joint member is provided to prevent water leakage from between the side walls of the other water receiving tub when arranged continuously with the other water receiving tub. Characteristic water tank. In the water receiving tank according to any one of claims 1 to 7,
A water receiving tank, characterized in that a roller is provided on the bottom surface of the water receiving tank so as to be movable on the road surface. In the water receiving tank according to claim 8,
At least two rollers are provided on the bottom surface of the water receiving tank, and among these rollers, the roller on the tunnel wall surface side is provided via a telescopic support. A tank unit mounted on the vehicle base for storing wash water;
A water supply section for sending the cleaning water supplied from the tank section at a high pressure;
An injection port for injecting the cleaning water sent from the water supply section to the inner wall surface of the tunnel;
A pedestal for placing the injection port close to the tunnel wall;
Any one of Claims 1 to 9, wherein the waste water is disposed below the inner wall surface of the tunnel along the longitudinal direction of the tunnel, and the sewage generated by spraying the cleaning water from the injection port to the inner wall surface of the tunnel is recovered. The water tank described in
A pumping unit for sucking the sewage stored in the water receiving tank;
A filtration unit for separating sludge from the sewage sucked by the pumping unit;
A device for cleaning an inner wall surface of a tunnel, comprising: The tunnel inner wall cleaning apparatus according to claim 10, wherein the filtration unit is
A receiving tank in which the sewage primarily stored in the water receiving tank is input to stabilize the sewage;
A mixing tank in which a reagent is added together with sewage in the receiving tank and agitated;
A separation tank for separating the sewage mixed with the reagent in the preparation tank into water and sludge;
A device for cleaning an inner wall surface of a tunnel, characterized by comprising: In the tunnel inner wall cleaning apparatus according to claim 11,
The separation tank includes an outer cylinder communicating with the mortar-shaped bottom 264b,
A flow path that is arranged inside the outer cylinder and forms a flow path to the bottom by partitioning a part of the inner space of the outer cylinder, and a flow path that extends from the bottom to the upper end of the outer cylinder. An inner cylinder to constitute,
A device for cleaning an inner wall surface of a tunnel, characterized by comprising:

Images