JP2009074286A - Infiltration material and rainwater storage and infiltration system using the infiltration material - Google Patents

Abstract

An object of the present invention is to provide a osmotic material that can reduce the excavation width and a storm water storage and osmosis system using the osmotic material even when a storm water storage and osmosis system with a large amount of stored water is constructed.
A rainwater storage space is embedded in the soil, and has a wall surface through which rainwater stored in the storage space can permeate into the soil, and the height of the permeation material / the width of the permeation material is 3. The penetrant having a substantially rectangular cross section as described above is embedded in the soil along the side groove of the road, and includes a rainwater supply path that supplies rainwater that has fallen on the ground to the water storage space of the penetrant. did.
[Selection] Figure 1

Description

  The present invention relates to an osmotic material and a rainwater storage and osmosis system using the osmotic material.

In the urban area, as shown in FIG. 11, rainwater 200 that has fallen on the road 100 flows into a catchment 400 or a gutter 300 provided along the road and drains underground from the catchment 400. It often flows into a sewer or a river through a drainage channel 500 such as a pipe.
However, if rainwater flows directly into the river in this way, there is almost no inflow of water into the groundwater veins, which may lead to groundwater depletion.
In addition, due to global warming, there has been a lot of rainfall at the same time, and there are frequent accidents in which rainwater overflows from the ditch and drainage path of the road due to sudden inflow of rainwater and floods the house. In some cases, deaths were caused by flooding in the basement.

Therefore, even in urban areas where paving has progressed, rainwater storage and infiltration facilities such as infiltration dredges and infiltration trenches (Patent Document 1, Patent Document 1, etc.) 2) is proposed in the rainwater drainage route.
That is, the seepage trough is provided with a permeation hole on the side surface or bottom surface of the reed so that a part of the rainwater flowing into the reed penetrates the rainwater from the permeation hole into the ground. However, in the case of seepage dredging, rainwater cannot be sufficiently stored unless it is large, so it is difficult to install it on a narrow site.
On the other hand, infiltration trenches are filled with crushed stones in excavated grooves, and perforated pipes (permeable pipes) connected to normal pits are installed in the pits. Rainwater that has flowed into the perforated pipe from the dredging is permeated into the ground through a hole provided on the wall of the perforated pipe or a water-permeable sheet wound around the crushed stone. Since the perforated pipe is once stored in water, there is no need to increase the size of the permeation tank. However, if the amount of stored water is increased, the diameter of the perforated pipe and the crushed stone filling section must be increased, and the excavation width of the ground at the time of construction increases, making it difficult to construct on narrow sites. There's a problem.

JP-A-8-53873 Japanese Patent Publication No. 5-68579

  In view of the above circumstances, the present invention aims to provide a osmotic material capable of reducing the excavation width and a storm water storage and osmosis system using the osmotic material even when a storm water storage and osmosis system with a large water storage amount is constructed. Yes.

  In order to achieve the above object, an osmotic material according to claim 1 of the present invention (hereinafter referred to as "the osmotic material of claim 1") is embedded in soil, has a rainwater storage space, A osmotic material having a wall surface that allows rainwater stored in the space to penetrate into the soil, wherein (the height of the osmotic material / the width of the osmotic material) has a substantially rectangular cross section of 13 or more. .

  The penetrating material according to claim 2 of the present invention (hereinafter referred to as "the penetrating material of claim 2") is characterized in that in the penetrating material of claim 1, the width is 100 mm to 400 mm.

  The penetrating material according to claim 3 of the present invention (hereinafter referred to as “the penetrating material according to claim 3”) is the penetrating material according to claim 1 or claim 2, and includes two bottoms rising from the bottom surface portion. A resin-embedded base material provided with a side surface portion, in which a water storage space is formed between the side surface portion and the side surface portion, and in which at least one of the bottom surface portion and the two side surface portions has water passage holes formed therein The water-permeable sheet material that covers at least the water passage hole portion of the embedded base material from the inside or the outside is provided.

  The penetrating material according to claim 4 of the present invention (hereinafter referred to as "the penetrating material according to claim 4") is the penetrating material according to any one of claims 1 to 3, wherein the bottom surface portion is formed in a water-impermeable structure. It is characterized by being.

  The penetrating material according to claim 5 of the present invention (hereinafter referred to as "the penetrating material according to claim 5") is the penetrating material according to any one of claims 1 to 4, wherein the inner bottom surface of the bottom surface portion is in the longitudinal direction. It is characterized by being formed in the shape of a semicircular groove that is continuous.

  The penetrating material according to claim 6 of the present invention (hereinafter referred to as "the penetrating material according to claim 6") is water-permeable only to one side surface portion in the penetrating material according to any one of claims 1 to 5. It is characterized in that a hole is formed.

  The osmotic material according to claim 7 of the present invention (hereinafter referred to as "the osmotic material according to claim 7") is the ventilation pipe according to any one of claims 1 to 6, which faces the water storage space from the ground. And a plurality of guide plates for guiding a cleaning hose inserted from the vent pipe into the water storage space directly under the vent pipe toward the longitudinal end of the water storage space, between the adjacent guide plates It is characterized by being arranged in parallel in the water storage space in a state in which a gap for passing cleaning water discharged from is formed.

  The penetrating material according to claim 8 of the present invention (hereinafter referred to as "the penetrating material according to claim 8") is a vent pipe that faces the water storage space from the ground in any of the penetrating materials according to any one of claims 1 to 7. And the diameter of the vent pipe is 50 mm to 75 mm.

  The rainwater storage and infiltration system according to claim 9 of the present invention (hereinafter referred to as "rainwater storage and infiltration system of claim 9") has the infiltration material according to any one of claims 1 to 8 in a side groove of a road. Along with being buried in the soil, it is provided with a rainwater supply passage for supplying rainwater from the ground side to the water storage space of the permeation material.

  The rainwater storage and infiltration system according to claim 10 of the present invention (hereinafter referred to as "rainwater storage and infiltration system of claim 10") is the rainwater storage and infiltration system according to claim 9, in the bottom of the infiltration material and on the road side. It is characterized by a non-permeable surface.

In the present invention, the resin constituting the embedded substrate is not particularly limited, and examples thereof include vinyl chloride resin, polyethylene resin, and polypropylene resin.
Further, in the present invention, the term “substantially rectangular” includes those whose end portions are arcuate.

  As described above, the osmotic material according to claim 1 of the present invention is an osmotic material embedded in the soil, having a rainwater storage space, and having a wall surface through which rainwater stored in the water storage space can permeate into the soil. In addition, since (the height of the permeation material / the width of the permeation material) has a substantially rectangular cross section of 3 or more, the water storage capacity is improved even if the width is narrower than that of the perforated pipe. In addition, if the width is narrowed, the excavation width at the time of construction becomes small, and it can be installed even in a narrow site, and since it can be constructed using a small hydraulic excavator, the workability is also improved. In addition, when (the height of the penetrant / the width of the penetrant) is less than 3, the ratio of the bottom surface portion becomes too large, and the ground is loosened by infiltration into the soil from the bottom surface portion, and unevenness is likely to occur. However, as described above, even if the bottom surface penetration is eliminated by setting the height of the permeation material / the width of the permeation material to 3 or more, rainwater can be sufficiently introduced into the soil by infiltration only from the side surface of the permeation material. Penetration can be secured. Accordingly, unevenness due to loose ground is less likely to occur. Moreover, since the water head can be secured high, the permeation amount increases.

  Since the penetrant according to claim 2 of the present invention has a width of 100 mm to 400 mm, the excavation width at the time of construction is small and the workability is improved.

  The penetrant according to claim 3 of the present invention includes a bottom surface portion and two side surface portions rising from the bottom surface portion, a water storage space is formed between the side surface portion and the side surface portion, and the bottom surface portion and the two side surfaces. Since it comprises a resin-made embedded base material in which a large number of water passage holes are drilled in at least one of the parts, and a water-permeable sheet material that covers at least the water passage hole portion of the embedded base material from the inside or the outside, it is lightweight. It is rich in workability.

  In the osmotic material according to claim 4 of the present invention, since the bottom surface portion is formed in a water-impermeable structure, erosion of the soil below the bottom surface portion due to infiltration from the bottom surface is prevented, and unevenness caused by erosion is prevented. Can do.

  In the penetrant according to claim 5 of the present invention, since the inner bottom surface of the bottom surface portion is formed in a semicircular groove shape that is continuous in the longitudinal direction, the sediment that has entered with rain water in the water storage space and accumulated at the bottom portion is washed. Easy to wash away with water, etc., making maintenance easy.

In the infiltrating material according to claim 6 of the present invention, since the water passage hole is formed only in one side surface portion, the penetration of rainwater into the soil is performed only from one side surface side. That is, for example, when used for a long period of time, there is a risk that the ground or the roadbed will be eroded by rainwater that has penetrated into the soil from the seepage material.
Therefore, for example, in the case where the penetrating material is embedded along the side groove of the road, if the side surface portion on the side where the water passage hole is not provided is embedded so as to face the road side, the road side Erosion of the roadbed can be prevented, and the danger of causing a major accident due to the erosion of the road can be avoided.

The infiltrating material according to claim 7 of the present invention includes a vent pipe that faces the water storage space from the ground, and is provided so as to extend from one side surface portion toward the other side surface portion. A plurality of guide plates for guiding the cleaning hose inserted into the longitudinal direction of the water storage space from directly below the ventilation pipe, and a gap for passing the cleaning water discharged from the cleaning hose between the adjacent guide plates Since it is arranged in parallel in the water storage space in the state of forming, sediments such as gravel accumulated in the water storage space can be easily washed.
That is, when the cleaning hose is inserted into the water storage space from the vent pipe, first, the tip of the cleaning hose is received by the guide plate directly below the vent pipe. Further, when the cleaning hose is pushed into the water storage space, the tip of the cleaning hose enters toward the longitudinal end of the water storage space while being guided by the guide plate in the direction of the longitudinal end of the water storage space. At this time, since a gap for passing water is provided between the guide plate and the guide plate, the cleaning water discharged from the tip of the cleaning hose flows into the bottom of the water storage space through the clearance. Therefore, it is possible to efficiently flow wash water over the entire length of the water storage space in the length direction.

  The osmotic material according to claim 8 of the present invention includes a ventilation pipe that faces the water storage space from the ground, and the pipe diameter of the ventilation pipe is 50 mm to 75 mm. can do.

  The rainwater storage and infiltration system according to claim 9 of the present invention is the rainwater supply system in which the infiltration material of the present invention is embedded in the soil along the side groove of the road, and supplies rainwater from the ground side to the storage space of the infiltration material. Since the road is provided, a large amount of rainwater can be infiltrated into the soil at a low cost by using a narrow section along the road.

  In the rainwater storage and infiltration system according to claim 10 of the present invention, the bottom surface of the infiltration material and the surface on the road side are impermeable, and therefore the soil below the road is eroded by rainwater that has penetrated into the soil. There is nothing.

Hereinafter, the present invention will be described in detail with reference to the drawings showing embodiments thereof.
1 and 2 show a first embodiment of a rainwater storage and infiltration system according to the present invention and a first embodiment of an infiltration material used in the rainwater storage and infiltration system.

  As shown in FIGS. 1 and 2, the rainwater storage and penetration system A includes a rainwater supply path 1 and a penetration material 8.

The rainwater supply path 1 includes a first pipe line 2, a coarse filtration device 3, and a second pipe line 4.
The first pipe line 2 is such that the entire interior of the water collecting basin 5a formed by partitioning the existing water collecting basin 5 into which rainwater from the side groove P provided along the road L flows is partitioned by the partition wall 51. The inlet 21 faces an intermediate position from the bottom to the upper end of the reservoir 5a so that the opening faces downward, and once rises upward from the inlet 21 to the outlet 22 It has a substantially inverted U shape that descends toward it.

  The outlet 22 has a lower height than the inlet 21 and is connected to an inflow portion 31 of the coarse filtration device 3 described later.

The coarse filtration device 3 is a product name hydro jump filter manufactured by INTEWA, Germany. As shown in FIG. 3, the coarse filtration device 3 includes an inflow portion 31, a main body portion 32, a filtered water discharge portion 33, and an overflow water discharge portion 34. The inflow part 31 and the main-body part 32 are provided so that the inside of a water reservoir may be faced.
The inflow portion 31 has a cylindrical shape and is connected to the outlet 22 of the first pipeline 2.

The main body portion 32 is connected to the inflow portion 31 and includes a recess 32 a that is recessed downward from the inflow portion 31.
The concave portion 32a has a substantially trapezoidal cross section with inclined surfaces 32b and 32c on the inflow portion 31 side and an overflow water discharge portion 34 side described later, and the inclined surface 32b on the inflow portion 31 side is formed of a mesh material. It is a coarse filter.

The filtered water discharge portion 33 extends in a cylindrical shape from the lower end of the main body portion 32 so as to face the inclined surface 32b from below.
One end of the second pipeline 4 is connected to the lower end of the filtrate discharge part 33.

  The overflow water discharge part 34 is connected to the main body part 32 so as to face the inflow part 31, has a cylindrical shape with a check valve 34 a at the end part on the main body part 32 side, and has a partition wall 51. A discharge port 22 is opened in a drainage basin 5b that is provided adjacent to the water storage basin 5a.

  That is, as shown in FIG. 3 (a), when the amount of rainwater 6 flowing from the inflow portion 31 is small, the coarse filtration device 3 is filtered by the inclined surface 32b and is a filtration surface. The contaminants 7 remain on the inclined surface 32 b, and the rainwater 61 (hereinafter referred to as “filtered water”) 61 from which contaminants have been removed flows into the second pipeline 4. On the other hand, when the amount of the rainwater 6 is large, as shown in FIG. 3B, a part of the rainwater flowing from the inflow portion 31 is filtered by the inclined surface 32 b, and the filtered water 61 is passed to the second pipeline 4. The remaining portion flows over the inclined surface 32c on the overflow water discharge portion 34 side, passes through the check valve 34a, enters the overflow water discharge portion 34, and is drained to the drainage basin 5b. Moreover, the foreign substance 7 stored on the inclined surface 32b is washed away from the inclined surface 32b by rainwater flowing into the overflow water discharge portion 34 side, and enters the drainage basin 5b through the overflow water discharge portion 34 together with rainwater. In addition, since the check valve 34a is provided at the inlet of the overflow water discharge part 34, the rainwater and the impurities 7 once entering the overflow water discharge part 34 do not flow back to the main body part 32 side. .

The second pipe line 4 includes a vertical pipe part 41, a gravel pool part 42, and a horizontal pipe part 43.
The vertical pipe portion 41 has an upper end connected to the filtered water discharge portion 33, a horizontal pipe portion 43 connected to the lower end, and a gravel puddle portion 42 protruding vertically downward from the lower end. ing.

Moreover, although not shown in figure, the removable gravel filter is incorporated above the horizontal pipe part connection part of the standing pipe part 41. As shown in FIG.
The gravel puddle portion 42 has a lid 42a that can be freely opened and closed at the lower end, and by opening the lid 42a, the gravel accumulated inside can be discharged into the reservoir 5a.

The horizontal pipe portion 43 is substantially L-shaped, and the downstream end portion penetrates the wall surface of the water storage tank 5a and faces the water storage space S at the lower end portion of the permeation material 8 described later. That is, the filtered water 61 that has flowed into the second pipe 4 is supplied to the osmotic material 8.
Further, the bent portion of the horizontal tube portion 43 is provided with a cleaning port 43a having a lid 43b that can be opened and closed so as to be aligned with a portion parallel to the downstream side groove P.

As shown in FIGS. 4 and 5, the penetrant 8 has a width of 100 mm to 400 mm, a water storage space S therein, and a height around which the water-permeable sheet 8 b is wound is 1 or more times the width (preferably Is 5 times or more), and the embedded base material 8a having the water storage space S therein, and the embedded base material 8a
Is formed of a water-permeable sheet 8b, an upper cover 8c, and a vent pipe 8d, and is embedded along the side groove P. The full water position of the osmotic material 8 is lower than the filter main body 32 d of the coarse filtration device 3.

As shown in FIG. 6, the embedded base material 8a is formed by assembling two members 81 and 82 formed of polypropylene resin, polyethylene resin or the like.
That is, one member 81 has a bottom surface portion 81a, a side surface portion 81b that rises at a right angle from one end of the bottom surface portion 81a, and a large number of frusto-conical spaces that have a truncated cone shape extending in parallel to the bottom surface portion 81a from the side surface portion 81b. And a protrusion 81c. A water passage hole 81d is formed in the side surface portion 81b at a position shifted from the protrusion 81c.

The other member 82 is substantially the same size as the side surface portion 81b, and includes a side surface portion 82a and a plurality of spacing holding projections 82b having a truncated cone shape on one surface of the side surface portion 82a.
As shown in FIG. 5, the embedded base material 8 a has the lower end of the member 82 received from below by the bottom surface portion 81 a of the member 81, and the spacing holding projections 81 c and 82 c of the members 81 and 82 are respectively the other. The two members 82 and 81 are assembled so as to be in contact with the side surface portions 82a and 81b.
Both members 81 and 82 are integrated by fitting, adhesive, ultrasonic fusion or the like.
The water permeable sheet 8b is formed of a woven or non-woven fabric using chemical fibers or natural fibers, and a non-woven fabric made of chemical fibers is preferably used.
The vent pipe 8d is provided at one end in the longitudinal direction of the osmotic material 8 so as to pass through an upper cover 8c and a water permeable sheet 8b, which will be described later, and the lower end thereof faces the water storage space S, and the upper end is disposed on the ground. The inner diameter is 50 mm to 75 mm.
The upper cover 8c is formed of the same resin as the embedded base material 8a, and is attached so as to cover the upper opening of the embedded base material 8a from the upper side of the water-permeable sheet 8b, and the insertion hole of the vent pipe 8d is perforated. It is installed. The vent pipe 8d may be integrated with the upper cover 8c by welding or the like.

And the said rainwater supply path 1 and the osmosis | permeation material 8 are constructed as follows.
That is, first, the ground 9 along or directly below the side groove P is excavated by using a small hydraulic excavator (for example, a trade name Mini Yumbo) or the like, and is slightly wider than the width of the embedded base material 8a. After forming a narrow groove (indicated by a broken line in FIG. 7) 91 for embedding the substrate deeper than the height, filter sand 92 is laid on the bottom of the groove 91 to a thickness of about 50 mm, and its upper surface is made almost horizontal. The water collecting basin 5 is partitioned by the partition wall 51 so as to form the water storage basin 5a and the drainage basin 5b.

Next, the rainwater supply path 1 is piped using pipes, elbows, sockets and the coarse filtration device 3 formed of vinyl chloride resin, polyethylene resin, polypropylene resin, etc., and as shown in FIG. The penetrating material 8 is set in the groove 91 so that the side surface portion 82a where the water passage hole 81d of the embedded base material 8a is not formed is on the road L side, and the downstream end portion of the second pipe 4 is embedded in the embedded base. It is set as the state inserted in the lower end part of the water storage space S of the embedding base material 8a from the one end surface of the length direction of the material 8a.
Subsequently, after the filter sand 92 is filled in the gaps between the side portions 81b and 82a and the groove 91 to substantially the same level as the upper end surface of the upper cover 8c of the osmotic material 8, the upper cover 8c and the upper portion of the filter sand 92 are vented. The soil is backfilled so that the upper end of 8d is exposed to the ground. At this time, only the lower portion of the bottom surface portion 81a may be backfilled with the filter sand 92, and the side surface portion and the upper portion may be backfilled with the excavation residual soil.

As described above, the rainwater storage and penetration system A has a width of the penetrant 8 of about 100 mm to 400 mm. Therefore, the rainwater storage and penetration system A can be easily and simply excavated in a narrow section along the side groove G of the road L using a small hydraulic excavator. Can be constructed at low cost.
Moreover, since the height of the infiltrating material 8 is 3 times or more (preferably 5 times or more) of the width and rainwater penetrates into the soil only from the side opposite to the road, the infiltration of rainwater Even if the soil is eroded due to the soil, it is only the soil facing the side opposite to the road, so that there will be no accidents such as the occurrence of unevenness and the depression of the road.
Furthermore, since the ventilation pipe 8d is provided and the inner diameter of the ventilation pipe is 50 mm to 75 mm, the internal air pressure is temporarily increased when rainwater flows in, and penetration can be promoted.

On the other hand, since the rainwater supply path 1 includes the coarse filtration device 3 as described above, the contaminants 7 that flow into the reservoir 5a together with the rainwater do not flow into the osmotic material 8. Moreover, since the coarse filtration apparatus 3 is equipped with the self-cleaning function in which the foreign substance 7 stored in the filtration surface by the rainwater which flows in from the inflow part 31 in large quantities is discharged | emitted by the drainage basin 5b side, the maintenance of the coarse filtration apparatus 3 is carried out. Almost unnecessary.
And since the exit 22 of the 1st pipe line 2 is lower than the inlet 21, the rain water in the reservoir 5a is quickly roughened by the siphon phenomenon when rain water fills the 1st pipe line 2. It is sent to the filtration device 3 and supplied to the osmotic material 8 through the second pipe 4. Moreover, even if rain rises and the inflow of rainwater into the reservoir 5a stops, the rainwater in the reservoir 5a is drained from the reservoir 5a to the coarse filter 3 until the inlet 21 is above the water surface.

  In addition, since the inlet of the first pipeline 2 is open horizontally or downward, even if there is an oil layer on the surface of the rainwater stored in the reservoir, it almost flows into the first pipeline 2. There is no. Therefore, the gravel filter and the penetrating material 8 are hardly contaminated by the oil that flows into the reservoir 5a together with the rainwater. The oil remaining in the reservoir 5a may be periodically adsorbed and removed by an oil adsorbing sheet (mat) or the like.

  Furthermore, since the second pipe 4 has a gravel filter built in the vertical pipe portion 41, the gravel that flows into the second pipe 4 together with rain water flows into the infiltrant 8 without being filtered by the coarse filtration device 3. Can be prevented. Moreover, since the gravel accumulation part 42 is provided so that it may protrude below from the lower end of the standing pipe part 41, the gravel which cannot be removed with the gravel filter accumulates in this gravel accumulation part 42, and gravel flows into the infiltration material 8. Can be prevented. Moreover, since the lid | cover 42a which can be opened and closed freely is provided in the lower end of the gravel accumulation part 42, the gravel stored in the gravel accumulation part 42 can be easily discharged | emitted in the reservoir 5a by opening the cover 42a. That is, maintenance is easy.

  Moreover, since the 2nd pipe line 4 is equipped with the cleaning port 43a, even if gravel etc. flow into the water storage space S, the cover 43b of the cleaning port 43a is removed, and the 2nd pipe line 4 is connected from the cleaning port 43a. If the hose or the like is inserted up to the water storage space S of the osmotic material 8 through the water storage space S, the water storage space S can be cleaned.

  On the other hand, the penetrant 8 is formed by embedding a narrow base material 8a having a width of about 100 mm to 400 mm along the side groove P of the road L, so that the construction is easy and the construction cost is increased. Can be reduced. Further, since rainwater that has flowed into the water storage space S penetrates into the soil from the surface opposite to the road L, the soil under the road L is not eroded by the penetration of rainwater.

FIG. 8 shows a second embodiment of the rainwater storage and infiltration system according to the present invention.
As shown in FIG. 8, this rainwater storage and infiltration system B allows rainwater to flow into the water storage space of the infiltrant 8 from one end in the longitudinal direction of the infiltrant 8, and dust along the other end in the longitudinal direction of the infiltrant 8. When a recovery basket P is provided and the inside of the osmotic material 8 is clogged with garbage, gravel, etc., the lid of the trash recovery container P is opened and high-pressure washing water is allowed to flow into the storage space S of the osmotic material 8 from the rainwater supply path 1. However, it is the same as the rainwater storage and permeation system A except that the clogging of the permeation material 8 can be eliminated by sucking up the dust from the side of the garbage collection basket P by a vacuum pump (not shown).

FIG. 9 shows a second embodiment of a penetrating material embedding base material according to the present invention.
As shown in FIG. 9, in the embedded base material 8e, side surface portions 85 and 86 are integrally formed on both sides in the width direction of the bottom surface portion 84 via resin hinges, and the inner bottom surface 84a of the bottom surface portion 84 is semicircular. Except for the concave groove shape, it is the same as the embedded substrate 8a. Although not shown, a water passage hole is formed only in the side surface portion 85.

  That is, in the penetrating material using the embedded base material 8e, as described above, the side surface portions 85 and 86 are integrally formed on both sides in the width direction of the bottom surface portion 84 via the resin hinges. Is easy to assemble. Further, since the inner bottom surface 84a of the bottom surface portion 84 has a semicircular concave groove shape, it is easy to wash away the sediment that has entered with the rain water in the water storage space and accumulated in the bottom portion with washing water or the like, thereby facilitating maintenance.

FIG. 10 shows a third embodiment of a penetrating material embedding base material according to the present invention.
As shown in FIG. 10, the embedding base material 8f of the infiltrating material 80 is provided so as to extend from one side surface portion toward the other side surface portion, and maintains an interval between both side surface portions, and the vent pipe 8d. A plurality of guide plates 86 for guiding the cleaning hose H1 inserted into the water storage space S from directly below the vent pipe toward the longitudinal end of the water storage space S are disposed between the cleaning hoses H1 and the adjacent guide plates 86. Except for being arranged side by side in the water storage space S in a state in which a flushing water passage 87 is formed, it is the same as the embedded base material 8a.

  That is, as shown in FIG. 10, in the penetrating material 8 using the embedded base material 8f, when the cleaning hose H1 is inserted into the water storage space S from the vent pipe 8d, first, the tip of the cleaning hose H1 is a guide directly below the vent pipe. It is received by the plate 86. Further, when the cleaning hose H1 is pushed into the water storage space S, the front end of the cleaning hose approaches the longitudinal end of the water storage space S while being guided by the guide plate 86 in the longitudinal direction end of the water storage space S. To do. At this time, since the water passage gap 87 is provided between the guide plate 86 and the guide plate, the washing water discharged from the tip of the washing hose flows into the bottom of the water storage space S through the gap 87. . Further, together with the cleaning hose H1, the suction hose H2 connected to a vacuum pump (not shown) is inserted to the bottom of the water storage space S by avoiding the guide plate 86 directly below the ventilation pipe 8d, and the cleaning water is sucked by the suction hose H2. Can be pumped out. Therefore, washing water can be efficiently flowed over the entire length in the length direction of the water storage space S, and the clogging of the osmotic material 8 can be easily eliminated, and maintenance is facilitated.

  The present invention is not limited to the above embodiment. For example, in the above-described embodiment, the penetrating material is embedded along the side groove of the road, but it may be embedded in the site of a general house.

In the above embodiment, the reservoir and drainage basin are formed by partitioning the existing catchment basin, but the reservoir may be separately embedded.
In the embodiment described above, the cleaning port is provided in the second pipeline, but it may be omitted.

In the above embodiment, the gravel pool portion is provided at the lower end of the vertical pipe portion, but may be provided in the middle of the horizontal pipe portion.
In the above embodiment, the first pipe of the rainwater supply path and the coarse filtration device are provided so as to face the inside of the reservoir. However, if the inlet of the first pipe is in the reservoir, the rainwater supply The other part of the road may be provided outside the reservoir.

  In the above embodiment, the water passage holes are formed only on one side surface portion of the embedded base material. However, the water passage holes are provided on both side surface portions, and rainwater penetrates into the soil from both side surface portions. You may be able to cope with. In addition, if the sheet formed of a non-permeable material is pasted on the road side of the embedded base material at the site construction to close the water passage hole, then the water permeable sheet is wound, Construction is also possible as in the above embodiment.

1 is a plan view illustrating a first embodiment of a rainwater storage and penetration system according to the present invention. It is a figure showing the rainwater supply path part of the rainwater storage penetration system of FIG. It is sectional drawing of the coarse-filtration apparatus of the rainwater supply path of FIG. 2, The figure (a) shows the state in which the rainwater is flowing gently, The figure (b) shows the state in which rainwater is flowing in rapidly. Appears. FIG. 1 is a partially cutaway perspective view of a penetrating material of the rainwater storage and penetrating system of FIG. It is a longitudinal cross-sectional view of the osmotic material of FIG. It is sectional drawing of the decomposition | disassembly state of the embedding base material of the osmosis | permeation material of FIG. It is sectional drawing explaining the embedment state of the osmotic material of FIG. It is a figure explaining 2nd Embodiment of the rainwater storage penetration system concerning this invention. It is a figure explaining 2nd Embodiment of the embedding base material of the penetration member concerning the present invention. It is a figure explaining 3rd Embodiment of the embedding base material of the penetration member concerning the present invention. It is a figure explaining an example of the flow of the rainwater which fell on the conventional road.

Explanation of symbols

A, B Rainwater storage and infiltration system 5a Reservoir 8, 80 Infiltration material 8a, 8e, 8f Embedded base material 8b Water permeable sheet 8d Vent pipe 81 First member 81a, 84 Bottom surface portion 81b, 85, 86 Side surface portion 81d Water passage hole 82 Second member 84a Inner bottom surface 86 Guide plate 87 Water passage gap H1 Cleaning hose L Road G Side groove S Water storage space

Claims (10)

An osmotic material embedded in the soil, having a rainwater storage space, and having a wall surface through which rainwater stored in the storage space can penetrate into the soil,
A penetrant having a substantially rectangular cross-section with a height of penetrant / width of penetrant of 3 or more.   The penetration material according to claim 1 whose width is 100 mm-400 mm.   A bottom surface portion and two side surface portions rising from the bottom surface portion are provided, a water storage space is formed between the side surface portion and the side surface portion, and there are many water passage holes in at least one of the bottom surface portion and the two side surface portions. The penetrating material according to claim 1 or 2, comprising a resin-made buried base material perforated and a water-permeable sheet material that covers at least a water passage hole portion of the buried base material from the inside or the outside.   The osmotic material according to any one of claims 1 to 3, wherein a bottom surface portion is formed in a water-impermeable structure.   The penetrating material according to any one of claims 1 to 4, wherein an inner bottom surface of the bottom surface portion is formed in a semicircular groove shape continuous in the longitudinal direction.   The permeation material according to any one of claims 1 to 5, wherein a water passage hole is formed only in one side surface portion.   Provided with a vent pipe that faces the water storage space from the ground, and is provided so as to extend from one side surface portion to the other side surface portion. A plurality of guide plates that guide toward the longitudinal end of the water storage space are arranged in parallel in the water storage space with a gap for passing cleaning water discharged from the cleaning hose between adjacent guide plates. The permeation material according to any one of claims 1 to 6.   The penetrating material according to any one of claims 1 to 7, further comprising a vent pipe facing the water storage space from the ground, wherein the vent pipe has a pipe diameter of 50 mm to 75 mm.   The osmotic material according to any one of claims 1 to 8 is embedded in the soil along a side groove of the road, and includes a storm water supply path for supplying rain water from the ground side to the water storage space of the osmotic material. A rainwater storage and infiltration system characterized by   The rainwater infiltration system according to claim 9, wherein a bottom surface portion and a road side surface of the infiltration material are impermeable.

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