JP6505475B2 - Sheath penetration pipe and pipe construction method for foundation penetration - Google Patents

Description

  The present invention relates to a sheath penetration pipe for foundation penetration and a method of installing a pipe line, and more particularly to a sheath penetration pipe for foundation penetration and a pipe construction method which is used for, for example, construction of piping penetrating a foundation of a building.

  Patent Document 1 discloses an example of a conventional base penetrating sheath tube. The base penetration sheath tube of Patent Document 1 includes a longitudinal sheath tube portion and a lateral sheath tube portion capable of accommodating a 90 ° elbow joint. The cross-sectional shape of the vertical sheath portion is a horseshoe, and the downstream side width thereof is wider than the upstream side width. Such a foundation penetration sheath tube is embedded in the foundation of a building to form a penetration path that allows the indoor side and the outdoor side of the foundation to communicate. The piping is constructed to pass through the through passage in the base penetrating sheath tube.

Unexamined-Japanese-Patent No. 2010-53599

  Concrete is cast around the foundation penetration sheath pipe, but when concrete is cast, there is a possibility that the foundation penetration sheath pipe may be deformed by the pressure (fresh concrete pressure) received from the fresh concrete. In particular, as in the technique of Patent Document 1, when the vertical sheath portion of the base penetration sheath has a horseshoe-shaped cross-sectional shape, the pressure from the side weakens, and the vertical sheath portion is easily deformed Become. If the base penetrating sheath tube is embedded and fixed in a deformed state (that is, a state in which the cross-sectional shape of the through passage is deformed), there is a possibility that the pipe can not be inserted into the inside.

  Therefore, the main object of the present invention is to provide a novel method for installing a sheath and pipe for penetration of a foundation.

  Another object of the present invention is to provide a method for installing a base penetrating sheath and a pipeline, which can prevent deformation during concrete placement.

The first invention is a foundation through sheath pipes used in the construction of the pipe extending through the foundation of the building, sheath pipe body and a lateral sleeve pipe section having a Tatesaya tube portion and a lateral opening having an upper opening And a dome-like upper opening reinforcing portion integrally formed with the sheath tube main body and connecting the peripheral edge of the upper opening so as to cover the upper opening.

In the first invention, the sheath pipe for penetrating the foundation is used to construct piping such as a drainage pipe penetrating the foundation of the building, and by being buried and fixed to the foundation, the indoor side of the foundation and the roof A through passage communicating with the outside is formed. Basic through sheath tube is provided with a sheath pipe body formed in such an elbow shape and a lateral sleeve pipe section having a Tatesaya tube portion and a lateral opening having an upper opening. Further, an upper opening reinforcing portion which is formed in a dome shape covering the upper opening and connects the periphery of the upper opening is integrally provided to the sheath canal main body. The upper opening reinforcing portion is cut off and removed after the base penetrating sheath is buried and fixed to the foundation of the building, and the upper opening reinforcing portion is cut off and removed from the sheath main body, The upper opening is in the open state.

  According to the first aspect of the invention, since the upper opening reinforcing portion for connecting the peripheral edge to the upper opening of the sheath tube main body is provided, the strength of the upper opening portion of the sheath tube main body is improved. Therefore, it is possible to appropriately prevent the deformation of the foundation penetrating sheath due to the pressure of fresh concrete at the time of placing concrete.

  Moreover, since the upper opening reinforcing portion is provided so as to cover the upper opening, the upper opening reinforcing portion also functions as a cap that prevents fresh concrete, dirt, and the like from entering the basic penetration sheath from the upper opening. Therefore, the operation of sealing the upper opening by using a cap, a tape, or the like before placing concrete can be omitted, and the work of constructing the base penetrating sheath can be made efficient.

A second invention is according to the first invention, and is a holding member provided at the upper opening reinforcing portion and to which a holding member for temporarily fixing the foundation penetration sheath pipe to the upright foundation or the foundation form of the upright foundation is attached. It has an attachment part.

  In the second invention, the upper opening reinforcing portion includes a holding member attaching portion formed in a ring shape or the like. The holding member attachment portion is used to attach a holding member such as a wire, a wire, a cord, and a thread for temporarily fixing the base penetration sheath tube.

  According to the second aspect of the invention, since the holding member attaching portion is provided, the operation of attaching the holding member to the base penetrating sheath pipe and temporarily fixing the base penetrating sheath pipe becomes easy. In addition, since the holding member attaching portion is provided to the upper opening reinforcing portion which is a portion exposed to the outside, the holding member can be removed without being buried in the concrete or damaging the concrete.

  A third invention is according to the first or second invention, and the upper surface of the upper opening reinforcing portion has a horizontal surface.

  According to the third aspect of the present invention, it can be confirmed that the base penetrating sheath pipe is not inclined and installed by placing or placing a horizontal unit on the horizontal surface of the upper opening reinforcing portion. The leveling of the sheath can be facilitated.

A fourth invention is according to any one of the first to third inventions, and is provided with a lateral opening reinforcing portion integrally formed with the sheath tube main body and connecting the periphery of the lateral opening so as to cover the lateral opening.

  In the fourth invention, a lateral opening reinforcing portion formed in a dome shape or the like covering the lateral opening and connecting the peripheral edge of the lateral opening is integrally provided to the sheath canal body. The lateral opening reinforcing portion is to be cut off and removed after the base penetrating sheath is buried and fixed to the foundation of the building, and the lateral opening reinforcing portion is cut off from the sheath main body so that The lateral opening is in the open state.

  According to the fourth aspect of the present invention, since the lateral opening reinforcing portion for connecting the peripheral edge to the lateral opening of the sheath canal is provided, the strength of the lateral opening of the sheath canal is improved. In addition, since the lateral opening reinforcing portion is provided so as to cover the lateral opening and also functions as a cap, the work of sealing the lateral opening with a cap, a tape, etc. can be omitted before putting concrete, Construction work of the sheath can be streamlined.

The fifth aspect of the present invention is a pipe construction method of applying a pipe extending through the foundation of the building, sheath pipe body and a lateral sleeve pipe section having a Tatesaya tube portion and a lateral opening having an upper opening (a) And providing a base penetrating sheath provided with an upper opening reinforcing portion connecting the periphery of the upper opening so as to cover the upper opening, (b) a lateral sheath of the sheath main body with respect to the void hole of the rising base see write fitted with a pipe section, the step of installing a foundation through sheath pipe so above the opening is arranged at a position where the indoor side of the dirt floor concrete were placed basal through sheath tube (c) step (b) Later, concrete between concrete is cast so that the upper opening reinforcement projects from the upper surface of concrete between the ground , and embedded and fixed the sheath pipe for foundation penetration, (d) buried and anchor the sheath pipe for foundation penetration at step (c) Cut the upper opening reinforcement from the sheath body after -Up, and after cutting the upper opening reinforcing portion in (e) step (d), comprising the step of installing a pipe extending to the outdoor side of the rising foundation through the foundation through sheath pipe from the indoor side of the earth floor concrete, It is a pipeline construction method.

In the fifth invention, a pipe penetrating a foundation of a building is installed using a sheath penetration tube for foundation. The conduit installation method according to the fifth aspect of the invention is basically applied to the construction of a drainage pipe or the like penetrating the cloth foundation. First, in step (a), a base penetration sheath is prepared. The foundation through sheath tube is provided with a sheath pipe body and a lateral sleeve pipe section having a Tatesaya tube portion and a lateral opening having an upper opening, is formed in such a dome-like covering the opening, the upper opening edge An upper opening reinforcing portion for connecting the two is integrally provided to the sheath tube main body. At next step (b), with respect to the void holes formed in the rising basis, see write fitted with a transverse sleeve pipe portion of the sheath pipe body, so the upper opening is arranged in a position where the indoor side of the earth floor concrete Install a sheath penetration tube for foundation penetration. At this time, the foundation penetration sheath tube is temporarily fixed using a holding member such as a hanging thread so that the foundation penetration sheath tube is not inclined and installed. In the subsequent step (c), concrete between earth is cast so that the upper opening reinforcing portion of the sheath for the foundation penetration projects from the top surface of the concrete between the soils, and the sheath for foundation penetration is buried and fixed. In the subsequent step (d), the upper opening reinforcement is cut off and removed from the sheath body of the base penetration sheath. As a result, the upper opening of the sheath can body is opened, and the piping can be inserted from the upper opening. Then, in step (e), a pipe extending from the indoor side of the concrete between soils to the outdoor side of the rising foundation is installed through the base penetrating sheath pipe.

  According to the fifth invention, similarly to the first invention, it is possible to appropriately prevent the deformation of the foundation penetrating sheath pipe due to the fresh concrete pressure at the time of pouring concrete between soils. In addition, since the upper opening reinforcement covering the upper opening also functions as a cap, the work of sealing the upper opening with a cap, tape or the like before pouring concrete between soils can be omitted, and the construction of the sheath pipe for foundation penetration Work is streamlined.

The sixth invention is a pipeline construction method for constructing a pipe which penetrates a foundation of a building, and (a) installing a foundation formwork in which reinforcing bars are arranged inside, (b) a vertical having an upper opening the step of providing a sheath pipe body and a lateral sleeve pipe section having a sheath pipe portion and the lateral opening, the foundation through a sheath tube having an upper opening reinforcing portion for connecting the periphery of the above the opening to cover the opening , it is disposed at a position where the indoor side of the upper opening is a concrete foundation (c), so that the lateral opening is arranged in a position where the outdoor side of the concrete foundation, installing a foundation through sheath tube by passing between the rebar (D) after installing the sheath pipe for foundation penetration in step (c), place the concrete foundation so that the upper opening reinforcement projects from the top of the concrete foundation, and embed and secure the sheath pipe for foundation penetration (E) step (d) Through sheath tube after embedded and fixed, step cutting the upper opening reinforcing portion from sheath pipe body, and after cutting the upper opening reinforcing portion in (f) Step (e), through the foundation through sheath tube concrete It is a pipeline construction method including the step of installing piping which extends from the indoor side to the outdoor side of the foundation .

In the sixth invention, a pipe penetrating a foundation of a building is installed using a sheath penetration tube for foundation. The pipe installation method according to the sixth aspect of the invention is basically applied to the construction of a drainage pipe or the like penetrating a solid foundation. First, in step (a), a foundation formwork in which reinforcing bars are arranged is installed. Moreover, in step (b), a sheath tube for base penetration is prepared. The foundation through sheath tube is provided with a sheath pipe body and a lateral sleeve pipe section having a Tatesaya tube portion and a lateral opening having an upper opening, is formed in such a dome-like covering the opening, the upper opening edge An upper opening reinforcing portion for connecting the two is integrally provided to the sheath tube main body. In the next step (c), is disposed at a position above the opening is the indoor side of the concrete foundation, so that the lateral opening is arranged in a position where the outdoor side of the concrete foundation, substructure through and through between rebar Install a sheath. At this time, the foundation penetration sheath tube is temporarily fixed using a holding member such as a hanging thread so that the foundation penetration sheath tube is not inclined and installed. In the subsequent step (d), the concrete foundation is placed so that the upper opening reinforcing portion of the foundation penetration sheath projects from the top surface of the concrete foundation, and the foundation penetration sheath is embedded and fixed. In the subsequent step (e), the upper opening reinforcement is cut off and removed from the sheath body of the base penetration sheath. As a result, the upper opening of the sheath can body is opened, and the piping can be inserted from the upper opening. Then, in step (f), a pipe extending from the indoor side to the outdoor side of the concrete foundation through the foundation penetrating sheath is installed.

  According to the sixth invention, similarly to the first invention, it is possible to appropriately prevent the deformation of the foundation penetrating sheath pipe due to the fresh concrete pressure at the time of placing the concrete foundation. In addition, since the upper opening reinforcement covering the upper opening also functions as a cap, the work of sealing the upper opening with a cap, tape or the like can be omitted before placing a concrete foundation, and the construction of the sheath tube for penetrating the foundation Work is streamlined.

  According to the present invention, since the upper opening reinforcing portion connecting the peripheral edge to the upper opening of the sheath tube main body is provided, the strength of the upper opening portion of the sheath main tube body is improved. Therefore, it is possible to appropriately prevent deformation of the sheath pipe due to fresh concrete pressure at the time of placing concrete. Furthermore, since the upper opening reinforcing portion is provided so as to cover the upper opening, the upper opening reinforcing portion also functions as a cap that prevents fresh concrete, dirt, and the like from entering the sheath tube from the upper opening. Therefore, the operation of sealing the upper opening using a cap, a tape or the like before placing concrete can be omitted, and the work of constructing the sheath can be made efficient.

  The above object, other objects, features and advantages of the present invention will become more apparent from the detailed description of the following embodiments given with reference to the drawings.

It is an illustration figure which shows a mode when the sheath pipe for foundations penetration of one Example of this invention is applied to the cloth foundation of a building. It is an illustration figure which shows an example of the inner pipe penetrated in the base penetration sheath pipe of FIG. 1, Comprising: (A) is a perspective view, (B) is sectional drawing. It is an illustration figure showing a foundation penetration sheath pipe of Drawing 1, and (A) is a perspective view and (B) is a sectional view. It is an illustration figure showing a foundation penetration sheath pipe of Drawing 1, and (A) is a front view, (B) is a top view, and (C) is a side view showing a side opening side. It is an illustration figure which shows an example of the construction method of constructing the foundation penetration sheath pipe of FIG. 1 on a cloth foundation, (A) shows a mode that the foundation penetration sheath pipe was temporarily fixed to the rising foundation of a cloth foundation. Shows the situation when placing concrete between the soil and embedding and fixing the sheath pipe for foundation penetration, and (C) cuts and removes the upper opening reinforcement and the transverse opening reinforcement of the penetration sheath for foundation penetration embedded and fixed Show the situation. It is an illustration figure which shows a mode that the state of FIG. 5 (A) was seen from upper direction. It is an illustration figure which shows an example of the construction method of constructing the drainage pipe which passes through the foundation penetration sheath pipe of FIG. 1, (A) shows a mode when inserting an inner pipe in the foundation penetration sheath pipe, (B) Shows a state in which the end of the horizontal pipe portion of the inner pipe is projected to the outside, and (C) shows a state in which the outdoor pipe is connected to the horizontal pipe portion of the inner pipe. It is an illustration figure which shows a mode that the drainage pipe which penetrates the cloth foundation of a building was constructed using the sheath pipe for foundation penetration of FIG. It is a perspective view which shows the base penetration sheath tube of the other Example of this invention. It is an illustration figure which shows a mode when the sheath pipe for foundations penetration of FIG. 9 is constructed on the cloth foundation of a building. It is a perspective view which shows the base penetration sheath tube of the further another Example of this invention. FIG. 12 is an illustrative view showing one example of a construction method for constructing the foundation penetration sheath pipe of FIG. 11 on a solid foundation of a building, and (A) shows a situation where the foundation penetration sheath pipe is temporarily fixed so as to pass between reinforcing bars; (B) shows a situation when a foundation concrete is cast and the foundation penetration sheath pipe is buried and fixed, and (C) shows a situation where the upper opening reinforcement of the foundation penetration sheath pipe buried and fixed is cut and removed . It is sectional drawing which shows the base penetration sheath tube of the further another Example of this invention. It is an illustration figure which shows a mode when the sheath for foundations penetration of FIG. 13 is constructed on the solid foundation of a building.

  Referring to FIG. 1, a sheath penetration pipe (hereinafter simply referred to as "sheath pipe") 10, which is an embodiment of the present invention, is used to construct a drainage pipe penetrating a foundation of a building. By being embedded and fixed to the foundation, a through passage connecting the indoor side and the outdoor side of the foundation is formed. And the drainage pipe which penetrates a foundation is constructed by connecting the indoor side piping 14 and the outdoor side piping 16 by the inner pipe 12 penetrated in this sheath pipe 10 (refer FIG. 8).

  As shown in FIG. 1, in this embodiment, an example in which a sheath tube 10 is applied to a cloth base 100 is shown. The fabric base 100 includes a rising portion (rising base) 102 and a footing 104 provided at the lower end thereof, and has an inverted T-shaped cross-sectional shape. In addition, the void holes 106 are formed in advance in the rising portion 102 at the time of placing the cloth base 100. The void hole 106 is a circular through hole having an inner diameter slightly larger than the outer diameter of the lateral sheath portion 32 of the sheath 10.

  In addition, although the thickness of the standup | rising part 102 of the cloth foundation 100 is generally set to 150-170 mm, in this Example, 195 mm which enters into the thickest class is assumed. Moreover, the drainage pipe to construct assumes the synthetic resin pipe of internal diameter 100 mm. The dimensions of the respective portions of the sheath tube 10 and the inner tube 12 described later are dimensions set in accordance with these.

  First, an example of the inner pipe 12 installed in the sheath pipe 10 will be described. The inner pipe 12 is a joint that is inserted into the sheath pipe 10 (through passage) to connect the indoor side pipe 14 and the outdoor side pipe 16 and constitutes a part of the drainage pipe (see FIG. 8).

  As shown in FIG. 2, the inner pipe 12 is a rigid pipe having no flexibility, and is formed of a synthetic resin such as rigid vinyl chloride. The inner pipe 12 includes an elbow portion 20 and a horizontal pipe portion 22 provided on the downstream side thereof, and is formed in a substantially L shape elongated in the lateral direction. In this embodiment, the inner pipe 12 is formed by adhesively bonding a general-purpose straight pipe (plain pipe) to a downstream port of a general-purpose 90 ° elbow having receptacles at both ends. That is, at the upstream end of the inner pipe 12, the receptacle 24 connected to the indoor pipe 14 is formed upward, and at the downstream end of the inner pipe 12, the outlet 24 is connected to the outdoor pipe 16. A mouth 26 is formed laterally.

  The axial length L1 of the horizontal pipe portion 22 is set to be larger than the thickness of the rising portion 102 of the cloth base 100, and the inner pipe 12 is formed in the sheath pipe 10 as shown in FIG. When it is brought close to the rising portion 102 side of 100, the tip portion (separating port 26) of the horizontal pipe portion 22 has a length such that it protrudes from the rising portion 102 to the outside (see FIG. 7B). The axial length L1 of the horizontal pipe portion 22 is, for example, 300 mm.

  Further, the overall length L2 of the inner pipe 12 in the axial direction of the horizontal pipe portion 22 is, for example, 424 mm. Further, the outer diameter of the elbow portion 20, that is, the maximum width of the inner pipe 12 in the direction orthogonal to the axial direction of the horizontal pipe portion 22 is 125 mm, for example.

  Subsequently, the configuration of the sheath tube 10 will be specifically described. As shown in FIGS. 3 and 4, the sheath tube 10 is formed of a synthetic resin such as rigid vinyl chloride, polyethylene and polypropylene, and is manufactured using blow molding or the like. The sheath tube 10 includes a sheath tube main body 30 having an upper opening 30a and a side opening 30b. The sheath tube main body 30 includes a transverse sheath tube portion 32, a curved portion 34 and a longitudinal sheath tube portion 36, and is formed in a 90 ° elbow shape as a whole.

  The lateral sheath portion 32 is formed in a short straight tubular shape with a circular cross section extending in the lateral direction, and a lateral opening 30 b is formed at the downstream end portion thereof. The inner diameter of the lateral sheath portion 32 is, for example, 119 mm. The curved portion 34 is provided on the upstream side of the lateral sheath tube portion 32 and is formed in a cylindrical shape that continuously curves upward from the upstream end portion of the lateral sheath tube portion 32. The vertical sheath tube portion 36 is provided on the upstream side of the curved portion 34, and is formed in a short straight tubular shape extending in the vertical direction. An upper opening 30 a that opens upward is formed at the upstream end of the longitudinal sheath portion 36.

  Further, the vertical sheath tube portion 36 has a semi-cylindrical side wall disposed opposite to the axial direction of the horizontal sheath tube portion 32 and a flat side wall disposed opposite to the axial direction of the horizontal sheath tube portion 32. And the cross-sectional shape thereof is an oval (a rounded rectangular shape). That is, the upper opening 30a opens in an oval shape. In this embodiment, the size (opening area) of the upper opening 30a is such that the inner pipe 12 (see FIG. 2) having the long horizontal pipe portion 22 as described above can be inserted and removed as it is without division or the like. It is set. By this, as described later, when constructing the drainage pipe, it is possible to perform all the connection work and the cutting work of the drainage pipe outside the sheath pipe 10 (through passage), and the connection work of the drainage pipe It can be done easily and properly. Also, even when the drainage pipe is renewed, all cutting work of the drainage pipe can be performed outside the sheath pipe 10, and the drainage pipe remaining in the sheath pipe 10 can be easily extracted from the upper opening 30a. it can.

  However, it is preferable to reduce the size of the upper opening 30a as much as possible in consideration of the member cost and the appearance of the inter-soil concrete 116 described later. Therefore, in this embodiment, when inserting the inner pipe 12 into the sheath pipe 10, the diameter R1 of the upper opening 30a in the axial direction of the horizontal sheath pipe portion 32 (inner diameter of the vertical sheath pipe portion 36) Of the rear end portion 28 of the elbow portion 20 of the inner pipe 12 does not hit the periphery of the upper opening 30a when the front end of the horizontal pipe portion 22 reaches the proximal end portion 38 of the horizontal sheath pipe portion 32. The size is set (see FIG. 7A). Thereby, the size of the upper opening 30a is suppressed. Further, when the inner pipe 12 is disposed in the sheath pipe 10, the inner pipe 12 is movable along the axial direction of the lateral sheath pipe portion 32. That is, there is a piping movable area of the drainage pipe. The diameter R1 of the upper opening 30a is, for example, 355 mm.

  Further, the diameter R2 of the upper opening 30a in the direction orthogonal to the axial direction of the lateral sheath tube portion 32 is set to the same or substantially the same size as the outer diameter of the elbow portion 20 of the inner tube 12. Thereby, the size of the upper opening 30a is suppressed. In addition, when the inner pipe 12 is inserted into the sheath pipe 10, the inner pipe 12 is supported by the flat side wall of the vertical sheath pipe portion 36 and rotates around the axial direction of the horizontal sheath pipe portion 32. It is prevented from falling sideways. The diameter R2 of the upper opening 30a is, for example, 125 mm.

  Further, the proximal end portion 38 of the lateral sheath tube portion 32, that is, the transition portion from the lateral sheath tube portion 32 to the curved portion 34, is expanded in a step-like shape so that its cross-sectional shape becomes a horseshoe shape. That is, the proximal end portion 38 of the lateral sheath tube portion 32 has a semi-cylindrical upper half portion and a half-sided tubular lower half portion, and protrudes like a bowl on the outer peripheral surface of the lateral sheath tube portion 32 A stepped surface 38a is formed. As described later, when installing the sheath tube 10 by inserting the lateral sheath tube portion 32 into the void hole 106, the sheath tube 10 is positioned by bringing the periphery of the void hole 106 into contact with the step surface 38a. Ru.

  Furthermore, a rectangular flat plate portion 40 is formed at the upstream bottom of the curved portion 34. When installing the sheath pipe 10, the sheath pipe 10 and the bottom surface 38 of the base end portion 38 of the lateral sheath pipe portion 32 are placed on the ground surface directly or via the moistureproof sheet 114. Are stabilized and lateral fall of the sheath tube 10 is prevented.

  And in this embodiment, the upper opening reinforcing portion 42 and the lateral opening reinforcing portion 44 are integrally provided at both ends of the sheath tube main body 30. That is, the sheath tube main body 30, the upper opening reinforcing portion 42 and the side opening reinforcing portion 44 are integrally formed.

  The upper opening reinforcing portion 42 is formed in a dome shape so as to cover the upper opening 30a, and connects the peripheral edge of the upper opening 30a (that is, the upstream end of the vertical sheath tube portion 36). By providing such an upper opening reinforcing portion 42, the strength of the upper opening 30a portion of the sheath tube main body 30, in particular, the strength against pressure from the side is improved. Further, the upper opening reinforcing portion 42 has a horizontal surface 42 a on the upper surface thereof. The horizontal surface 42 a is used to place or place a level when installing the sheath tube 10.

  The lateral opening reinforcing portion 44 is formed in a dome shape so as to cover the lateral opening 30b, and connects the peripheral edge of the lateral opening 30b (that is, the downstream end of the lateral sheath tube portion 32). By providing such a lateral opening reinforcing portion 44, the strength of the lateral opening 30b portion of the sheath tube body 30 is improved.

  Further, the upper opening reinforcing portion 42 and the side opening reinforcing portion 44 are provided with a ring-shaped holding member attaching portion 46. The holding member attachment portion 46 is used to attach a holding member 110 (see FIG. 5) such as a wire, a wire, a cord, and a thread used to temporarily fix the sheath tube 10 when the sheath tube 10 is installed. Be In this embodiment, the upper opening reinforcing portion 42 is provided with a holding member attaching portion 46 on the side in the direction of protrusion of the lateral sheath portion 32 and the opposite side. Further, the lateral opening reinforcing portion 44 is provided with a holding member attaching portion 46 at an upper portion thereof so as not to protrude outward beyond the outer peripheral surface of the lateral sheath tube portion 32. However, the shape, the number, and the arrangement position of the holding member attachment portion 46 can be changed as appropriate.

  The upper opening reinforcing portion 42 and the lateral opening reinforcing portion 44 as described above are to be cut and removed after the concrete is cast and the sheath pipe 10 is embedded and fixed (in this embodiment, after the placement of the soil concrete 116) It is. By cutting and removing the upper opening reinforcing portion 42 and the lateral opening reinforcing portion 44, the upper opening 30a and the lateral opening 30b of the sheath tube main body 30 are opened, and a through passage connecting the indoor side and the outdoor side of the cloth base 100 Is formed. In addition, since the upper opening reinforcing portion 42 and the horizontal opening reinforcing portion 44 are cut and removed, the axial length of the vertical sheath tube portion 36 and the horizontal sheath tube portion 32 is such that the upper opening reinforcing portion 42 is on the indoor side It is set in such a size that the sheath tube 10 can be embedded and fixed in a protruding state and in a state in which the lateral opening reinforcing portion 44 protrudes to the outdoor side.

  Further, on the outer surface of the upper end portion of the vertical sheath pipe portion 36, a display unit 48 is provided which displays the upper limit position where concrete can be placed by unevenness, printing or the like. By placing concrete with this indicator 48 as a guide, the upper opening reinforcing portion 42 is prevented from being buried in the concrete. However, the display unit 48 may indicate a height range in which concrete can be placed, a recommended height range, and the like.

  Then, with reference to FIGS. 5-8, an example of the pipeline construction method of constructing the drainage pipe which penetrates the fabric foundation 100 of a building using the sheath pipe 10 is demonstrated.

  In this conduit construction method, first, as shown in FIGS. 5 and 6, the cloth base 100 is driven and the sheath tube 10 is embedded and fixed in a predetermined position.

  Specifically, first, a foundation formwork for placing the cloth foundation 100 is formed, and reinforcing bars are arranged in the foundation formwork. In addition, a cylindrical void pipe is disposed at the piping position of the drainage pipe so as to penetrate the lower portion of the rising portion 102 in the thickness direction. Then, fresh concrete is poured into the foundation formwork, and after curing for a predetermined time to solidify the concrete, the foundation formwork and the void tube are removed. As a result, the cloth base 100 having the void holes 106 is placed in the rising portion 102. However, the void tube may be buried in the rising portion 102. Moreover, while providing the space for installing the sheath tube 10 on the indoor side of the void hole 106, the moisture-proof sheet 114 is installed on the soil 112 at the indoor side. The moisture-proof sheet 114 may be cut away at the portion where the sheath tube 10 is to be placed. Also, the cloth base 100 may be formed by prefabrication (prefabrication).

  Next, as shown in FIG. 5A, the lateral sheath tube portion 32 of the sheath tube 10 is fitted into the void hole 106, and the sheath tube 10 is installed. At this time, the bottom of the sheath tube main body 30 is placed on the ground surface directly or through the moisture-proof sheet 114, and the periphery of the void hole 106 and the step surface 38a of the lateral sheath tube portion 32 of the sheath tube 10 The lateral sheath portion 32 is fitted into the void hole 106 until it abuts. Then, in this state, as is clearly understood from FIG. 6, the sheath tube 10 is temporarily fixed using a holding member 110 such as a hanging thread.

  The method of temporarily fixing the sheath tube 10 using the holding member 110 is not particularly limited, but, for example, the holding member may be connected so as to connect the holding member attachment portions 46 provided on the upper opening reinforcing portion 42 and the lateral opening reinforcing portion 44 respectively. 110 may be attached, and the sheath tube 10 may be temporarily fixed so as to be lifted by the holding member 110. At this time, the holding member 110 may be spread in the lateral direction via an anchor bolt 108 or the like provided so as to protrude from the upper surface of the rising portion 102 of the cloth base 100. However, it is not always necessary to attach the holding member 110 via the anchor bolt 108 or the like. Further, although not shown, a holding member attachment is separately installed on the upper surface of the rising portion 102 or the like, and provided on the holding member attachment and the upper opening reinforcing portion 42 and the lateral opening reinforcing portion 44 of the sheath 10, for example. The sheath tube 10 can also be temporarily fixed by connecting the holding member attachment portion 46 with the holding member 110. Also, using a floor band or the like having a raising and lowering portion as a holding member attachment, for example, holding member attachment provided in holding member attachment portion 46 and lateral opening reinforcement portion 44 provided in upper opening reinforcing portion 42 via the raising and lowering portion The portion 46 may be connected by the holding member 110, and the lifting member may be used to lift the holding member 110 after the connection. Thereby, the sheath tube 10 can be temporarily fixed more reliably without causing an individual difference due to a worker's technique.

  Furthermore, although illustration is abbreviate | omitted, a horizontal device is hit | contacted or mounted with respect to the horizontal surface 42a of the upper opening reinforcement part 42, and it is confirmed that the sheath tube 10 is not inclined and installed.

  By temporarily fixing the sheath tube 10 using the holding member 110 in a state where the lateral sheath tube portion 32 is thus fitted into the void hole 106, the sheath tube 10 is stably temporarily fixed. Moreover, the sheath tube 10 is easily positioned by the contact of the peripheral edge of the void hole 106 and the step surface 38 a. Furthermore, the base end portion 38 bottom surface of the horizontal sheath tube portion 32 formed in a flat plate shape and the flat plate portion 40 are placed on the ground surface, so that the sheath tube 10 around the axial direction of the horizontal sheath tube portion 32 The rotation is prevented, and the sheath tube 10 is temporarily fixed more stably.

  After the sheath tube 10 is temporarily fixed, as shown in FIG. 5 (B), after the space around the sheath tube 10 is backfilled with soil, or as it is, the vertical sheath tube portion 36 of the sheath tube 10 is Concrete 116 is placed so as to cover the periphery of the sheath pipe 10 so as to be buried and fixed. When the concrete between soils 116 is cast, the upper limit position displayed on the display unit 48 is not exceeded, and the entire upper opening reinforcing portion 42 protrudes from the upper surface of the concrete between soils 116.

  Here, in this embodiment, since the upper opening 30a portion of the sheath tube main body 30 is reinforced by providing the upper opening reinforcing portion 42 so as to connect the peripheries of the upper opening 30a, the concrete 116 is poured Deformation of the longitudinal sheath portion 36 (and thus the sheath tube 10) due to the fresh concrete pressure is properly prevented. Further, since the upper opening reinforcing portion 42 is provided so as to cover the upper opening 30a, the upper opening reinforcing portion 42 also functions as a cap that prevents fresh concrete, dust, and the like from entering the sheath tube 10 from the upper opening 30a. Therefore, it is possible to omit the work of sealing the upper opening 30a using a cap, a tape or the like before the placement of the concrete between soils 116. Similarly, since the lateral opening reinforcing portion 44 is provided so as to cover the lateral opening 30b, it also functions as a cap, and the operation of sealing the lateral opening 30b using a cap, a tape or the like can be omitted. Furthermore, since the upper opening reinforcing portion 42 is formed in a dome shape, even if the fresh concrete gets on the peripheral portion of the upper opening reinforcing portion 42, the fresh concrete slides down naturally.

  When the soil concrete 116 hardens and the sheath pipe 10 is embedded and fixed, subsequently, as shown in FIG. 5 (C), the upper opening reinforcing portion 42 and the lateral opening reinforcing portion 44 are cut and removed from the sheath pipe main body 30 Do.

  Specifically, first, the holding member 110 used for temporarily fixing the sheath tube 10 is removed. Under the present circumstances, since the holding member attachment part 46 is provided with respect to the upper opening reinforcement part 42 and the horizontal opening reinforcement part 44 which are exposed outside (that is, it is a part which is not buried) The holding member 110 can be removed without damaging the concrete 116.

  Then, the upper opening reinforcing portion 42 is cut and removed by cutting the upstream end portion of the vertical sheath pipe portion 36 at a position near the upper surface of the concrete between soils 116 using a cutting tool such as a disc grinder (sander). By this cutting operation, adjustment of the length (height) of the vertical sheath tube portion 36 is completed at the same time as the upper opening 30a is opened. Similarly, the lateral opening reinforcing portion 44 is cut and removed by cutting the downstream end of the lateral sheath tube portion 32 at a position near the side surface on the outdoor side of the rising portion 102 using a cutting tool. By this cutting operation, the adjustment of the length of the lateral sheath tube portion 32 is completed at the same time as the lateral opening 30b is opened.

  As a result of the above-described operation, the through pipe (pipe passage) connecting the indoor side and the outdoor side of the cloth base 100 is formed by the sheath main body 30 of the sheath pipe 10.

  When the embedding and fixing operation of the sheath tube 10 is finished, next, as shown in FIG. 7, the drainage pipe is inserted and installed in the sheath tube 10.

  Specifically, first, as shown in FIG. 7A, the pipe member of the indoor side pipe 14 is adhesively bonded to the receiving port 24 of the inner pipe 12 outside the sheath pipe 10, and then the upper opening The inner pipe 12 is inserted obliquely into the sheath pipe 10 from 30a. Then, when the end of the horizontal pipe portion 22 of the inner pipe 12 reaches the proximal end 38 of the horizontal sheath pipe portion 32, the inner pipe 12 is rotated into the sheath pipe 10 with the front end of the horizontal pipe portion 22 as a fulcrum.

  Subsequently, as shown in FIG. 7B, the inner pipe 12 is moved to the rising portion 102 side of the cloth base 100, and the downstream end (separating port 26) of the horizontal pipe portion 22 of the inner pipe 12 is made outdoors. Make it stand out. Then, as shown in FIG. 7C, the pipe member of the outdoor side pipe 16 is bonded and joined to the port 26 of the horizontal pipe portion 22 outside the sheath pipe 10 using a socket 18 or the like.

  Next, as shown in FIG. 8, the inner pipe 12 is moved together with the connected piping member of the outdoor side piping 16 in accordance with the desired piping position of the indoor side piping 14 in the axial direction of the horizontal sheath tube portion 32. Adjust the position of the inner pipe 12. Thereafter, caulking 118 such as silicon sealant is applied to the outdoor side opening edge of the void hole 106 to close the gap between the outer peripheral surface of the outdoor side pipe 16 and the inner peripheral surface of the void hole 106. In addition, although illustration is abbreviate | omitted, it is good to provide the lid | cover which seals the upper opening 30a in the sheath tube 10 suitably. In addition, the gap between the inner pipe 12 and the sheath pipe 10 may be filled with a sponge or the like.

  Finally, the construction of the drainage pipe passing through the rising portion 102 of the cloth foundation 100 is completed by backfilling the periphery of the outdoor side piping 16 with soil or the like. As described above, when the drainage pipe is constructed, the connection work and the cutting work of the drainage pipe can all be performed outside the sheath pipe 10, and the connection work of the drainage pipe can be easily and appropriately performed.

  In addition, although illustration is abbreviate | omitted, the method to update the drainage pipe constructed using the above sheaths 10 is demonstrated easily. When the drainage pipe needs to be renewed due to aging or the like, first, the indoor side piping 14 of the drainage pipe is cut outside the sheath pipe 10. Next, the drainage pipe in the sheath tube 10 is brought close to the rising portion 102 side of the cloth base 100, and the drainage pipe protruding from the rising portion 102 to the outside is cut in the vicinity of the side of the rising portion 102 on the outdoor side. Subsequently, the drainage pipe remaining in the sheath pipe 10 is removed as it is from the upper opening 30a. Thereafter, in the same manner as the method shown in FIGS. 7 and 8, the drainage pipe is completed by inserting and installing a new drainage pipe into the sheath pipe 10. Thus, when the drainage pipe is renewed, all cutting work of the drainage pipe can be performed outside the sheath pipe 10, and the drainage pipe remaining in the sheath pipe 10 can be easily removed from the upper opening 30a. be able to.

  As described above, according to this embodiment, since the upper opening reinforcing portion 42 connecting the peripheral edge to the upper opening 30a of the sheath tube main body 30 is provided, the strength of the upper opening 30a portion of the sheath tube main body 30 Be improved. Therefore, it is possible to appropriately prevent the deformation of the sheath pipe 10 due to the fresh concrete pressure at the time of placing the concrete 116 between soils. Furthermore, since the upper opening reinforcing portion 42 is provided so as to cover the upper opening 30a, it also functions as a cap that prevents fresh concrete, dust, etc. from entering the sheath tube 10 from the upper opening 30a. Therefore, the operation of sealing the upper opening 30a by using a cap, a tape, or the like before the placement of the concrete 116 between soils can be omitted, and the work of constructing the sheath tube 10 can be made efficient.

  Further, since the lateral opening reinforcing portion 44 connecting the peripheral edge to the lateral opening 30b of the sheath canal 30 is provided, the strength of the lateral opening 30b portion of the sheath can 30 is improved. Since the lateral opening reinforcing portion 44 is provided so as to cover the lateral opening 30b and also functions as a cap, the work of sealing the lateral opening 30b with a cap, a tape or the like before the placement of the concrete 116 between soils is omitted. it can.

  Furthermore, since the holding member attaching portion 46 is provided, the work of attaching the holding member 110 to the sheath tube 10 and temporarily fixing the sheath tube 10 becomes easy. Further, since the holding member attaching portion 46 is provided for the upper opening reinforcing portion 42 and the lateral opening reinforcing portion 44 exposed to the outside, the holding member is not buried in the soil concrete 116 or damage to the soil concrete 116 110 can be removed.

  Furthermore, since the upper opening reinforcing portion 42 has the horizontal surface 42a, leveling of the sheath tube 10 using a horizontal unit is facilitated.

  In the above-mentioned embodiment, although the upper opening 30a and the side opening 30b of the sheath tube 30 are entirely covered by the upper opening reinforcing portion 42 and the side opening reinforcing portion 44, the present invention is not limited thereto. The upper opening reinforcing portion 42 and the lateral opening reinforcing portion 44 do not necessarily have to completely seal (seal) the upper opening 30 a and the lateral opening 30 b, and some of them may be cut away. For example, a hole with a small diameter which may impair the reinforcing function and cap function of the upper opening reinforcing portion 42 and the lateral opening reinforcing portion 44 may be formed.

  Moreover, in the above-mentioned Example, although the upper opening reinforcement part 42 and the side opening reinforcement part 44 were formed in dome shape, it is not limited to this. The upper opening reinforcing portion 42 and the lateral opening reinforcing portion 44 may be formed, for example, in a flat plate shape.

  Furthermore, in the above-described embodiment, the side opening reinforcing portion 44 is provided in the side opening 30b of the sheath tube main body 30, but the side opening reinforcing portion 44 is not necessarily required. In addition, the lateral sheath portion 32 of the sheath body 30 does not necessarily have to have a length extending over the entire length of the void hole 106.

  For example, as shown in FIG. 9, in the sheath tube 10 of another embodiment of the present invention, the lateral opening 30b of the sheath tube main body 30 is opened in advance, and the length of the lateral sheath tube portion 32 of the sheath tube main body 30 is Is set short. The length from the step surface 38a to the tip of the lateral sheath tube portion 32 is, for example, 30 mm. The other parts are the same as those of the sheath tube 10 shown in FIG.

  When the sheath tube 10 shown in FIG. 9 is embedded and fixed, as shown in FIG. 10, the lateral sheath tube portion 32 of the sheath tube 10 is fitted into the void hole 106 and the periphery of the void hole 106 and the lateral sheath of the sheath tube 10 The step surface 38 a of the tube portion 32 is abutted. Then, in this state, the sheath tube 10 is temporarily fixed using a holding member 110 such as a hanging thread. For example, the sheath tube 10 may be temporarily fixed by attaching the holding member 110 so as to connect the holding member attachment portion 46 provided in the upper opening reinforcing portion 42 and the anchor bolt 108 of the rising portion 102 and the like.

  After temporary fixation of the sheath tube 10, concrete between the soils 116 is placed to cover the periphery of the vertical sheath tube portion 36 of the sheath tube 10, and the sheath tube 10 is buried and fixed. At this time, by making the step surface 38 a abut on the entire circumferential length of the edge of the void hole 106, the soil or fresh concrete for backfilling becomes the outer circumferential surface of the lateral sheath pipe portion 32 and the inner periphery of the void hole 106. Penetration (outflow) into the gap between the surface is prevented.

  After the sheath tube 10 is buried and fixed, the holding member 110 used for temporarily fixing the sheath tube 10 is removed, and the upstream end of the vertical sheath tube portion 36 is cut at a position near the upper surface of the concrete 116 between soils. The opening reinforcing portion 42 is cut and removed. As a result, a through passage connecting the indoor side and the outdoor side of the cloth foundation 100 is formed by the void hole 106 and the sheath tube main body 30, and a drainage pipe is installed using this through passage.

  Also in the embodiment shown in FIG. 9, since the upper opening reinforcing portion 42 connecting the peripheral edge to the upper opening 30a of the sheath pipe main body 30 is provided as in the embodiment shown in FIG. It is possible to appropriately prevent the deformation of the sheath tube 10 due to the pressure of fresh concrete. In addition, since the upper opening reinforcing portion 42 also functions as a cap, the operation of sealing the upper opening 30a using a cap, a tape, or the like before the placement of the inter-earth concrete 116 can be omitted.

  Although the void hole 106 having a circular cross section is formed in the rising portion 102 of the cloth base 100 in the above-described embodiment, the cross sectional shape of the void hole 106 is not particularly limited. The void hole 106 may be, for example, a through hole having a rectangular cross section or an arched cross section.

  Moreover, although the example which applied the sheath pipe 10 with respect to the cloth base 100 was shown in the above-mentioned Example, the sheath pipe 10 can also be applied with respect to the solid foundation 128. FIG. In FIG. 11, an example of the sheath tube 10 used for the solid foundation 128 is shown.

  As shown in FIG. 11, in the sheath tube 10 of still another embodiment of the present invention, the lateral opening 30b of the sheath tube main body 30 is previously opened, and the axial length of the lateral sheath tube portion 32 is solid. The thickness is about the same as the thickness of the rising portion of the base 128. The other parts are the same as those of the sheath tube 10 shown in FIG.

  A method of constructing a drainage pipe penetrating the solid foundation 128 using the sheath tube 10 shown in FIG. 11 will be described with reference to FIG.

  First, as shown in FIG. 12 (A), a base formwork 120 for forming a solid base 128 is formed. Rebars 122 are appropriately arranged (arranged) in the foundation formwork 120. Then, the sheath pipe 10 is installed so as to pass between the reinforcing bars 122 with respect to the piping position of the drainage pipe. At this time, for example, the holding member 110 is attached so as to connect the holding member attaching portion 46 provided in the upper opening reinforcing portion 42 and the projection portion 124 or the like of the basic form 120, or the curved portion of the sheath canal 30 The holding member 110 is attached so as to connect the holding member attaching portion 46 provided on the outer surface 34 and the reinforcing bar 122, and the sheath tube 10 is temporarily fixed. Further, the lateral opening 30b of the sheath tube main body 30 is sealed using a sealing member 126 such as a cap or a tape in order to prevent fresh concrete, dirt and the like from entering the sheath tube main body 30.

  After installation of the sheath tube 10, as shown in FIG. 12 (B), a concrete foundation is placed in the foundation formwork 120. When placing a concrete foundation, the upper limit position displayed on the display unit 48 is not exceeded, and the entire upper opening reinforcing portion 42 projects from the upper surface of the solid foundation 128.

  When the concrete is solidified and the sheath tube 10 is embedded and fixed, as shown in FIG. 12C, the holding member attaching portion 46 provided in the upper opening reinforcing portion 42 and the projection portion 124 of the base form frame 120 are connected. While removing the made holding member 110, the base formwork 120 is removed. The upper opening reinforcing portion 42 is cut and removed by cutting the upstream end portion of the vertical sheath tube portion 36 at a position near the upper surface of the solid foundation 128, and the seal attached to the lateral opening 30b of the sheath tube main body 30 The member 126 is removed. As a result, a through passage connecting the indoor side and the outdoor side of the solid foundation 128 is formed by the sheath pipe main body 30, and a drainage pipe is installed using this through passage.

  In the embodiment shown in FIG. 11 as well as the embodiment shown in FIG. 1, since the upper opening reinforcing portion 42 connecting the peripheral edge to the upper opening 30a of the sheath tube main body 30 is provided, the solid foundation 128 is placed It is possible to appropriately prevent the deformation of the sheath tube 10 due to the pressure of fresh concrete. In addition, since the upper opening reinforcing portion 42 also functions as a cap, the operation of sealing the upper opening 30a using a sealing member such as a cap or a tape before the solid foundation 128 is placed can be omitted.

  In the above-described embodiment, the inner pipe 12 is formed by adhesively bonding the straight pipe to the 90 ° elbow, but the present invention is not limited to this. For example, the inner pipe 12 may be one that is integrally formed in advance instead of connecting the members, or may be formed by rubber ring joining a straight pipe to a 90 ° elbow. However, from the viewpoint of reducing the cost by reducing the number of dedicated parts and the waterproofness, it is preferable to form the inner pipe 12 by bonding general purpose members.

  Moreover, in the above-mentioned Example, although the inner pipe | tube 12 with which the elbow part 20 and the horizontal pipe part 22 were integrated previously was penetrated in the sheath pipe 10, it is not limited to this. For example, the elbow portion 20 (90 ° elbow) and the horizontal pipe portion 22 (straight pipe) may be joined in the sheath tube 10 embedded and fixed.

  Further, the shape of the inner pipe 12 is not particularly limited. For example, the inner pipe 12 may be one in which the elbow portion 20 is not curved at an angle of 90 °, but is curved at an angle of 45 ° or 60 °, for example. Furthermore, the inner pipe 12 may be a flexible pipe.

  Furthermore, in the above-mentioned embodiment, although the vertical pipe is connected to the inner pipe 12 as the indoor side pipe 14, it is not limited to this. For example, a bent pipe may be connected to the inner pipe 12, or a weir such as a confluence weir or a turning weir may be connected directly or via a connection pipe.

  Furthermore, in the above-mentioned embodiment, although the drain pipe was illustrated as piping inserted in the sheath pipe 10, the pipe inserted in the sheath pipe 10 may be a water supply pipe or a gas pipe.

  In the above-described embodiment, the curved portion 34 of the sheath tube 10 is relatively gently curved upward, but the curved portion 34 stands in a substantially vertical direction from the proximal end portion 38 of the lateral sheath tube portion 32. It may be curved. Thus, the vertical sheath pipe portion 36 can be disposed close to the side sheath pipe portion 32, that is, in the vicinity of the rising portion 102, so that the indoor side pipe 14 can be arranged along the wall surface on the indoor side of the rising portion 102. It becomes easy to pipe.

  Furthermore, although the upper opening 30a of the sheath tube 10 is opened in an oval shape (rounded rectangular shape) in the above-described embodiment, the upper opening 30a may be opened in a horseshoe shape, an oval shape and a circular shape. Further, the upper opening 30a (longitudinal sheath tube portion 36) of the sheath tube main body 30 does not have to have a size which can be inserted and removed as it is without necessarily dividing the inner tube 12. That is, the sheath tube main body 30 only needs to have an inner diameter that allows at least the inner tube 12 to be inserted, in accordance with the type of the inner tube 12 (integral type, split type, flexible type, etc.).

  Furthermore, in the above-described embodiment, the longitudinal sheath portion 36 of the sheath tube 10 is formed to extend in a substantially vertical direction, but the longitudinal sheath portion 36 may be formed to extend in a diagonal direction.

  For example, as shown in FIG. 13, the sheath tube 10 according to still another embodiment of the present invention includes a sheath tube body 30 having an upper opening 30a and a lateral opening 30b. The sheath tube main body 30 includes a transversely extending lateral sheath tube portion 32, a curved portion 34, and an obliquely extending longitudinal sheath tube portion 36, and is formed in a large-curved 45 ° elbow shape as a whole. In addition, the sheath tube main body 30 is circular in cross section over substantially the entire length thereof.

  Further, an upper opening reinforcing portion 42 which is formed in a dome shape so as to cover the upper opening 30a and which connects the periphery of the upper opening 30a is integrally provided on the sheath tube main body 30. On the other hand, the lateral opening 30b of the sheath tube main body 30 is previously opened. Further, the upper opening reinforcing portion 42 is provided with a ring-shaped holding member attaching portion 46.

  The sheath tube 10 as shown in FIG. 13 is applicable to both the cloth base 100 and the solid base 128. For example, as shown in FIG. 14, in the case of constructing a drainage pipe penetrating solid foundation 128 using sheath tube 10 shown in FIG. Install the sheath tube 10 in the At this time, for example, the holding member 110 is attached so as to connect the holding member attaching portion 46 provided on the upper opening reinforcing portion 42 and the projection portion 124 or the like of the base form 120, and the sheath tube 10 is temporarily fixed. . Further, the lateral opening 30b of the sheath tube main body 30 is sealed using a sealing member 126 such as a cap or a tape in order to prevent fresh concrete, dirt and the like from entering the sheath tube main body 30.

  After the sheath tube 10 is installed, a concrete foundation is placed in the foundation mold frame 120 so that the upper opening reinforcing portion 42 protrudes from the upper surface of the solid foundation 128, and the sheath tube 10 is embedded and fixed. Thereafter, the base form 120 and the like are removed, and the upper opening reinforcing portion 42 is cut and removed, and the sealing member 126 attached to the side opening 30 b of the sheath tube main body 30 is removed. As a result, a through passage connecting the indoor side and the outdoor side of the solid foundation 128 is formed by the sheath pipe main body 30, and a drainage pipe is installed using this through passage.

  In the embodiment shown in FIG. 13 as well as the embodiment shown in FIG. 1, since the upper opening reinforcing portion 42 connecting the peripheral edge to the upper opening 30a of the sheath tube main body 30 is provided, when concrete is cast It is possible to appropriately prevent the deformation of the sheath tube 10 due to the fresh concrete pressure. In addition, since the upper opening reinforcing portion 42 also functions as a cap, the work of sealing the upper opening 30a using a cap, a tape or the like can be omitted.

  In addition, as for specific numerical values, such as a dimension mentioned above, as for all, it is only an example and can be suitably changed as needed.

DESCRIPTION OF SYMBOLS 10 ... Base tube for sheath penetration 12 ... Inner tube 14 ... Indoor side piping 16 ... Outdoor side piping 30 ... Sheath tube main body 30a ... Upper opening 30b ... Horizontal opening 32 ... Horizontal sheath pipe part 34 ... Curved part 36 ... Vertical sheath pipe part 42 ... Upper opening reinforcement portion 44 ... Lateral opening reinforcement portion 46 ... Holding member attachment portion 100 ... Cloth foundation 102 ... Rising portion (rise foundation)
104 ... footing 106 ... void hole 116 ... soil concrete 128 ... solid foundation

Claims (6)

It is a sheath penetration tube for foundation penetration used for construction of piping which penetrates the foundation of a building,
Sheath pipe body and a lateral sleeve pipe section having a Tatesaya tube portion and a lateral opening having an upper opening, and
A sheath- penetrating sheath tube comprising a dome-shaped upper opening reinforcing portion integrally formed with the sheath tube main body and connecting a peripheral edge of the upper opening to cover the upper opening. The foundation penetration according to claim 1, further comprising: a holding member attachment portion provided on the upper opening reinforcement portion and to which a retention member for temporarily fixing the foundation penetration sheath pipe to the upright foundation or the foundation formwork of the upright foundation is attached. Sheath tube.   The base penetrating sheath tube according to claim 1, wherein the upper surface of the upper opening reinforcing portion has a horizontal surface. The base penetration sheath tube according to any one of claims 1 to 3 , further comprising a lateral opening reinforcing portion integrally formed with the sheath tube main body and connecting a peripheral edge of the lateral opening so as to cover the lateral opening. It is a pipeline construction method of constructing piping which penetrates the foundation of a building,
Comprising a sheath pipe body and a lateral sleeve pipe section having a Tatesaya tube portion and the side openings, an upper opening reinforcing portion for connecting the periphery of the over the opening so as to cover the upper opening having (a) above the opening Providing a sheath for penetrating the foundation,
(B) viewing write fitted with a transverse sleeve pipe portion of the sheath tube body relative void holes of rising foundation, the foundation through sheath tube as the upper opening is arranged in a position where the indoor side of the earth floor concrete Step to install,
(C) After installing the foundation-piercing sheath pipe in the step (b), the inter-earth concrete is cast so that the upper opening reinforcing portion protrudes from the top surface of the soil-concrete, and the foundation-piercing sheath pipe Step to embed and fix the
(D) cutting the upper opening reinforcing portion from the sheath tube main body after embedding and fixing the base penetrating sheath pipe in the step (c), and (e) reinforcing the upper opening reinforcement in the step (d) Installing the pipe extending from the indoor side of the inter-soil concrete to the outdoor side of the rising foundation through the foundation penetrating sheath after cutting the section. It is a pipeline construction method of constructing piping which penetrates the foundation of a building,
(A) installing a foundation formwork in which rebars are arranged,
Comprising a sheath pipe body and a lateral sleeve pipe portion, an upper opening reinforcing portion for connecting the periphery of the over the opening so as to cover the upper opening (b) having an Tatesaya tube portion and a lateral opening having an upper opening Providing a sheath for penetrating the foundation,
(C) the upper opening is arranged in the indoor side and a position of the concrete foundation, the so side opening is disposed at a position the outdoor side of the concrete foundation, the substructure through and through between the reinforcing bar Installing the sheath,
(D) After installing the foundation penetration sheath pipe in the step (c), the concrete foundation is cast so that the upper opening reinforcing portion protrudes from the top surface of the concrete foundation, and the foundation penetration sheath pipe Step to embed and fix the
(E) cutting the upper opening reinforcing portion from the sheath tube main body after embedding and fixing the base penetrating sheath pipe in the step (d), and (f) reinforcing the upper opening reinforcement in the step (e) Installing the pipe extending from the indoor side to the outdoor side of the concrete foundation through the foundation penetrating sheath pipe after cutting the section.

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