JP2003321867A - Drainage system, execution method therefor, and block member - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To recycle a used glass bottle for being disposed of as a discarded material, by using a foam glass material for a drainage system, more excellent in water permeability than conventional infiltration facilities, and an execution method therefor. <P>SOLUTION: In this drainage system, the periphery of a perforated pipe 1 or that of a side ditch body 8, in which at least a side surface has a permeable structure, is filled with the foam glass material 2 with a high percentage of voids, so that permeability can be enhance. Additionally, the discarded material of glass is effectively recycled as the foam glass material, so that the above purpose can be accomplished. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a permeable drainage facility for infiltrating rainwater or the like into the ground and discharging it to the outside, and a construction method thereof.

[0002]

2. Description of the Related Art A permeation facility using a perforated pipe is used as a means for discharging rainwater or the like to the outside while permeating it into the ground. By filling the ground with a large number of pores, some of the water that passes through the pipe is permeated into the ground through these pores, and the part that cannot be completely permeated is transported to the permeate.
In addition to perforated pipes, porous pipes called porous may be used. Similarly, gutters having a permeation structure are also used. In these infiltration facilities, perforated pipes and porous pipes are filled with crushed stones to prevent them from being clogged with soil, and a permeable sheet made of nonwoven fabric is wound around the crushed stones. Ground pipes are installed in combination with penetration trenches and penetration trenches in the grounds of residential areas and schools, and gutters are also used near roads. Also, even in a place reinforced with concrete on the slope of a mountain,
A water permeable mat is provided on the inner surface of the concrete wall, and a drain pipe is provided on the water permeable mat to discharge rainwater and the like out of the wall surface.

[0003]

The conventional water permeable facility is capable of permeating rainwater into the ground through a perforated pipe or gutter having a permeation structure, but it is provided around the perforated pipe and the gutter body. Even if crushed stone prevents clogging of perforated pipes, it does not have sufficient water retention capacity. Therefore, if the filler itself provided around the perforated pipe or the gutter body has a large water retention capacity, the permeability of rainwater can be improved. An object of the present invention is to provide a drainage facility having better water permeability than a conventional infiltration facility and a method for constructing the drainage facility. Moreover, it is an object of the present invention to reuse a used glass bottle that is discharged as a waste material by using a foam glass material in the drainage facility and the construction method thereof.

[0004]

In order to solve the above-mentioned problems, a drainage system according to the present invention is provided with a perforated pipe or a gutter body having at least a side surface having a water permeable structure, and a perforated pipe or a gutter body around the main body. It has a foam glass material to be filled. The gutter body may be made of a concrete material containing foam glass. A water-permeable sheet may be provided around the foam glass material. The construction method of installing the drainage equipment according to the present invention is to embed a perforated pipe in the ground and fill the perforated pipe with a foam glass material to install the drainage equipment. Further, instead of the perforated pipe, a gutter body having a water permeable structure at least on its side surface may be provided.
The filling of the foam glass material may be performed by installing a foam glass material that has been processed into a block shape in advance at the construction site. The periphery of the foam glass material can be covered with a water-permeable sheet. Further, in order to achieve the object of the present invention, a water-permeable mat made of a layer of a foam glass material provided inside a concrete wall surface for reinforcing the slope of the drainage facility, and a water-permeable mat provided at the back of the layer of the water-permeable mat. It may have a sheet and a drain outlet provided through a concrete wall from the water permeable mat to the outside of the slope.

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION A first embodiment of a drainage facility according to the present invention will be described. FIG. 1 is a horizontal cross-sectional view of the drainage facility according to the present invention, and FIG. 2 is a vertical cross-sectional view thereof. The perforated tube 1 is installed in the ground, and the foam glass material 2 is filled around the perforated tube. Then, a water-permeable sheet 3 made of non-woven fabric or the like is wound around the foam glass material 2. The perforated pipe 1 which is an underground pipe is a pipe made of a concrete material, and this pipe is provided with a large number of holes. Rainwater is collected by perforated pipes and flows in the pipes. Here, rainwater goes out through the holes provided in the perforated pipe 1. There is a glass foam material 2 around the perforated tube 1 to prevent soil from clogging the perforated tube 1 and to temporarily store water that has come out through the holes of the perforated tube 1 and further to the outside. Permeate into the ground through the water permeable sheet 3 of. Here, the foam glass material 2 is processed into lumps of the same size as crushed stones, and rainwater is stored in the gaps between the lumps, and since it has many holes inside, the foam glass material 2 itself becomes water retentive. It is rich and can store a large amount of water compared to conventional crushed stone. Further, the foamed glass material 2 which is alkaline and has a high porosity has a purifying action, and can purify drainage and then permeate it into the ground. The perforated tube 1 may be a porous tube called porous concrete in addition to the concrete provided with a large number of holes. Further, the tube may be formed by mixing a foam glass material into concrete or porous concrete.

To install the drainage equipment of this embodiment, a hole is dug in the ground, a water-permeable sheet 3 is placed, a block of glass foam material 2 is put in the water-permeable sheet 3, a perforated pipe 1 is placed, and a perforated pipe is placed. This is performed by winding the outside of the tube 1 with the foam glass material 2 and the water permeable sheet 3, and filling the ground with soil. Here, instead of filling the block-shaped foam glass material 2 at the construction site, the foam glass material 2 may be processed in advance into a block having a predetermined shape in a factory or the like. That is, as shown in FIG. 3 (a), a space 4 into which a perforated pipe is to be inserted is provided inside, and a block material having an outer shape of a rectangular cross section is processed in advance, and after the perforated pipe is put inside the site, You may fill it. The water-permeable sheet 3 may also be prepared as a block wound in advance in the outside. If the foam glass material is processed in this way,
Since the thickness and packing density of the foam glass material layer can be managed in advance at the factory, there is an advantage that unevenness of the foam glass material layer does not occur during construction. The cross section of this block is shown in Fig. 3 (b).
As shown in FIG. 3, the shape shown in FIG. 3A may be cut in half. In this case, at the time of construction, first insert one half of the block into the ground, then insert a perforated pipe into the recess and then insert the remaining half block from above. In addition to these, the cross-sectional shape of the block may be circular or trapezoidal as shown in FIGS. 3 (c) and 3 (d), and the gutter body is inserted in the upper portion shown in FIG. 3 (e) so as to be used in an example of a gutter described later. It may have a cross-sectional shape provided with a rectangular groove.

The present embodiment has a wide range of application in a residential area, a large scale, a housing complex, etc., when it is widely used. In order to infiltrate here, a cylindrical main body 7 made of perforated concrete or porous concrete may be provided in the ground, and the periphery thereof may be filled with foam glass material instead of crushed stone. In addition, as the ground and drainage facilities of the school, as shown in FIG. 4, a permeation trench can be configured by combining a large number of permeation troughs 6 and underground pipes 5 that connect them.

A second embodiment of the drainage facility according to the present invention will be described with reference to FIG. It is an embodiment in which the present invention is applied to a side groove. FIG. 5 shows the cross-sectional view. Penetration gutters are used in combination with penetrations on roads, grounds, parking lots, etc. The standard material of the gutter main body 8 is concrete as in the case of a normal gutter. At least the side surface of the gutter main body 8 has a water permeable structure, and has a hole or a porous structure. The foam glass material 2 is provided on the bottom surface and the side surface of the gutter body 8.
To fill. This foamed glass material 2 may be processed into a lump of a size of crushed stone and filled at the construction site, or may be processed in advance into a block having a cross-sectional shape as shown in FIG. 3 (e). . The outer side of the foam glass material 2 is wrapped with a water-permeable sheet 3 made of non-woven fabric or the like. Here, the lid 9 is usually placed on the gutter body 8. In addition, in the case of the gutter of the present embodiment or the underground pipe of the first embodiment, the surface of the roadway or the sidewalk can be a water-permeable flat plate when it is provided near the road. Also in this example, the water-permeable flat plate 10 is used to facilitate penetration of rainwater on the road into the ground.
Here, as the water-permeable flat plate 10, as shown in an enlarged cross-sectional view in FIG. 6, a foamed glass material 10b is mixed into porous concrete 10a, sludge or the like so that the water-permeable flat plate 10 has better water permeability than the conventional water-permeable flat plate. Good.

FIG. 7 shows a third embodiment of the drainage facility according to the present invention. FIG. 7 is a sectional view of the mountain retaining wall. The wall surface is reinforced with concrete 11. A foam glass material 12 is filled inside the layer of concrete 11. A water permeable sheet 13 is provided at the back of the foam glass material 12. Here, the layer of the foam glass material 12 acts as a water-permeable mat that collects moisture in the ground. The water collected here is discharged from the drain port 14 to the outside of the slope to prevent the wall surface from being damaged by water pressure. In addition, the water permeable block 1 on the wall
5 can be provided. FIG. 8 shows an enlarged sectional view of the water permeable block 15. The tube 16 is formed by mixing porous concrete with a foam glass material. Soil 17 containing plant seeds 18 is put in the cylinder. By placing this block on the slope, the slope is reinforced and the plants grow from the block so that green can be seen on the wall. You can

[0010]

As described above, in the drainage system according to the present invention, rainwater and the like can be effectively permeated into the ground by the foam glass material provided around the perforated pipe or the ditch of the water permeable structure. Further, water can be purified by passing it through a foam glass material. Since this foamed glass material can be produced by using glass waste materials such as empty bottles that are no longer needed, there is also an effect that waste can be recycled as a resource.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing a first embodiment of drainage equipment of the present invention.

FIG. 2 is a vertical sectional view of the same.

FIG. 3 is a cross-sectional view of a block of foam glass material.

FIG. 4 is a cross-sectional view of an infiltration trench.

FIG. 5 is a cross-sectional view showing a second embodiment of the drainage facility of the present invention.

FIG. 6 is a detailed sectional view of a water-permeable flat plate.

FIG. 7 is a cross-sectional view showing a third embodiment of the drainage facility of the present invention.

FIG. 8 is a cross-sectional view of a water permeable block.

[Explanation of symbols]

1. Perforated pipe 2. Foam glass material 3. Penetration sheet 4. Space for perforated pipe or gutter body 5. Underground pipe 6. Penetrate 7. Increasingly body 8. Gutter body 9. lid 10. Water-permeable plate 11. Concrete wall 12. Water-permeable mat (foam glass material) 13. Water permeable sheet 14. Drain 15. Water permeable block 16. Cylinder 17. soil 18. Plant seeds

─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. ⁷ Identification code FI theme code (reference) E03F 5/04 E03F 5/04 A (71) Applicant 302025970 Seiwa Kensho Co., Ltd. Minamishinta-cho, Kochi City, Kochi Prefecture No. 3 27 (71) Applicant 302025969 Komatsu Shoko Co., Ltd. 6-17 Asakura Minami-cho, Kochi City, Kochi Prefecture (71) Applicant 301075075 Soil Engineering Co., Ltd. 759-2 (71) Applicant, Tohaku-cho, Tohaku-gun, Tottori Prefecture 301075086 Eco City Co., Ltd. 3-9-20 Kubota-cho, Niihama-shi, Ehime (72) Inventor Yoichi Miyazaki 3-209, Chiyori-cho, Kochi-shi, Kochi Tosa Shokai Building 4F (72) Inventor Naoki Mori 25, Engyoji, Kochi-shi, Kochi Address F term (reference) 2D048 CA22 2D051 AA03 AC06 AD07 AF03 AF06 AH02 DA09 DB15 DC09 2D063 AA12 AA15 BA00 CA14 CA16 CA17

Claims (11)

[Claims] 1. A drainage facility comprising a perforated pipe and a foam glass material provided around the perforated pipe. 2. A drainage facility comprising a gutter body having a water-permeable structure at least on its side surface, and a foam glass material provided outside the gutter body. 3. The drainage facility according to claim 2, wherein the gutter body is made of a concrete material containing foam glass. 4. The drainage facility according to claim 1, wherein a water-permeable sheet is provided around the foam glass material. 5. A water-permeable mat made of a layer of a foam glass material provided inside a wall surface of concrete for reinforcing a slope, and a water-permeable sheet provided behind the layer of the water-permeable mat,
A drainage facility characterized by having a drainage port provided through a concrete wall from the permeable mat to the outside of the slope. 6. A construction method in which a perforated pipe is buried in the ground, a foam glass material is filled around the perforated pipe, and a drainage facility is installed. 7. A construction method in which a gutter body having a water-permeable structure at least on a side surface is provided, and a foam glass material is filled around the gutter body to install drainage equipment. 8. A construction method for installing drainage equipment according to claim 6 or 7, wherein a foam glass material which has been processed into a block shape in advance is installed at a construction site. 9. A construction method for installing the drainage facility according to claim 6, wherein the glass foam material is covered with a water-permeable sheet. 10. A block material obtained by molding a foam glass material into a shape having a space into which a drain pipe or a gutter body is to be inserted. 11. The block material according to claim 10, wherein a water-permeable sheet is provided outside the foam glass material.