JPH09203105A - Filling member made of synthetic resin for rainwater seepage facility - Google Patents

Abstract

PROBLEM TO BE SOLVED: To allow easy handling by forming a storage part for a rainwater seepage pit, and forming voids which connects an inner surface defining the storage part and an outer surface making contact with the surrounding ground. SOLUTION: Each latticed filling member main body 11, consisting of a block longitudinally split into two, is so constructed that inner and outer surfaces 14, 15 defining a storage part 19 are communicated to each other via each space 11a in the lattice and voids 16 During construction, the pair of filling member main bodies 11 is installed in an excavated hole to form a filling member 1, with a columnar bottom member 12 placed on the bottom of the storage part 19 of the filling member 1. Further, a rainwater seepage pit is placed in the storage part 19 of the filling member 1 with its upper surface coinciding with the surface of the ground. Because heavy materials such as crushed stone or sand are not required and because of easy handling, the labor load of construction work can be reduced, and the accuracy of construction and operational efficiency can both be enhanced.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a filling member which is used by arranging it around the rainwater-infiltrating trout including the lower part of the rainwater-infiltrating truss when the rainwater-infiltrating trout is buried in the ground.

[0002]

2. Description of the Related Art In recent years, with the progress of pavement on the ground surface and an increase in the amount of groundwater pumped up, the groundwater level in urban areas has declined remarkably, and conversely, rainwater has penetrated into the underground. Without flowing into sewage without increasing the required sewage treatment capacity and sewage treatment cost, the problem has been regarded as a problem.

[0003] Rainwater infiltration facilities for infiltrating rainwater into the ground have been put into practical use for the purpose of maintaining the groundwater level and reducing the amount of sewage treatment. An example thereof is shown in FIG. This rainwater infiltration facility uses rainwater infiltration mast 2, and has a large number of through holes 22 formed in the periphery and a bottom portion 23.
And the reinforcing ribs 24 are formed inside,
When burying the synthetic resin cylindrical rainwater seepage body 21 in the ground 6, first, sand 5 is laid at the bottom of the excavation hole formed by excavating the surrounding ground 6 to a predetermined range and depth, A water-permeable sheet 31 made of a non-woven fabric or the like is arranged along the inner surface of the excavation hole including the upper surface of the sand 5 to prevent the intrusion of earth and sand, and then crushed stones having a predetermined thickness on the water-permeable sheet 31 (inside). Four
The bottom part 23 of the main body 21 for
The water permeable sheet 32 is arranged at the position where is located, and the rainwater permeation main body 21 is installed on the upper surface of the water permeation sheet 32 so that the upper surface thereof coincides with the ground surface, and then the rain water permeation main body 2
It is constructed by filling crushed stone 4 around 1 to a predetermined height, arranging a water permeable sheet 33 on its upper surface, and backfilling the water permeable sheet 33 with any soil. is there. A lid 25 is provided on the upper part of the main body 21 for permeating rainwater, and an appropriate position in the middle part for permeating rainwater during the construction of the rainwater permeation body 2
A rainwater introduction pipe (not shown) for introducing into 1 and, if necessary, an excess rainwater permeates the rainwater above the rainwater pipe, if necessary, a rainwater discharge pipe (not shown) for discharging from inside the main body 21. ) Are connected.

[0004]

The rainwater infiltration facility described above is effective for maintaining the groundwater level and reducing the amount of sewage treatment, but in order to increase its effectiveness, a large number of rainwater infiltration systems are used in a wide range. It is necessary to disperse permeation equipment.
However, since the above-mentioned rainwater infiltration equipment uses heavy crushed stones and sand, there is a problem in that it is difficult to handle the material and construction work becomes heavy labor. Further, since most of the work is done on-site, there are problems that the work accuracy is not constant and the work efficiency is low.

In view of the above problems, the present invention is easy to handle and can reduce the work load of construction work.
An object of the present invention is to provide a synthetic resin filling member for rainwater permeation equipment, which can improve construction accuracy and work efficiency.

[0006]

In order to achieve the above-mentioned object, a synthetic resin filling member for rainwater infiltration equipment of the present invention forms an accommodation portion for rainwater infiltration, and at the same time, an inner surface and a surrounding area defining the accommodation portion. It is characterized in that a void is formed to communicate with the outer surface in contact with the ground.

This synthetic resin filling member for rainwater infiltration equipment, which is used in place of conventional crushed stone or sand, is easy to handle, and therefore, the work load of construction work can be reduced and the construction accuracy and work efficiency can be improved. can do.

In this case, in order to make the handling of the synthetic resin filling member for rainwater infiltration equipment easier, the filling member can be formed by being divided into a plurality of blocks. The method of dividing the filling member may be vertical division or horizontal division, and the number of divisions may be any number, such as two divisions or four divisions, depending on the shape of the filling member. It can be divided.

Further, in order that the divided synthetic resin filling member for rainwater infiltration equipment can be accurately installed in the excavation hole, a locking portion for locking adjacent blocks to each other is formed on the joint surface of the blocks. can do.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, a synthetic resin filling member for rainwater infiltration equipment of the present invention (hereinafter, simply referred to as "filling member").
Embodiments will be described with reference to the drawings.

FIG. 1 shows a rainwater infiltration facility using the filling member of the present invention. This rainwater infiltration facility uses a synthetic resin rainwater infiltration mast 2, which has a large number of through holes 22 formed in the periphery to open a bottom portion 23 and to have reinforcing ribs 2 inside.
4 made of synthetic resin cylindrical rainwater infiltration body 2
When burying 1 in the ground 6, first, a water-permeable sheet 3 made of a non-woven fabric or the like for preventing the intrusion of earth and sand into the excavation hole formed by excavating the surrounding ground 6 to a predetermined range and depth, if necessary. The filling member 1 made of synthetic resin is installed around and the main body 21 is installed so that the top surface of the filling member 1 penetrates rainwater into the bottomed accommodating portion formed in the approximate center of the filling member 1 and the ground surface. Then, it is constructed by backfilling the top of the water permeable sheet 3 with any soil. As the non-woven fabric or the like used for the water-permeable sheet 3, for example, a thickness of 2 to 10 mm,
A non-woven fabric made of synthetic fiber having a weight of 50 to 200 g / m ² is preferable in terms of the performance of preventing intrusion of earth and sand from the surrounding ground 6, the passability of rainwater, and the corrosion resistance. In addition, a rainwater introduction pipe (not shown) for introducing rainwater into the rainwater infiltration body 21 is additionally required at an appropriate position in the middle of the rainwater infiltration body 21 when the rainwater infiltration equipment is constructed. Accordingly, excess rainwater permeates rainwater above the rainwater pipe. Main body 21
Connect a rainwater discharge pipe (not shown) for discharging from inside. In this case, the filling member 1 is also provided with through holes (not shown) for inserting the rainwater introduction pipe and the rainwater discharge pipe at the corresponding positions.

The filling member 1 can take various forms as schematically shown in FIGS. 2 to 5, but basically, the rainwater permeates the substantially central portion of the filling member main body 11 into the main body 2.
It is configured by forming a storage portion 19 of 1 and forming a space 16 that communicates an inner surface 14 that defines the storage portion 19 and an outer surface 15 that is in contact with the surrounding ground 6 with the rainwater introduced into the rainwater infiltration masu. It is made possible to permeate into the surrounding ground from the peripheral surface including the bottom surface of the filling member. In this case, the filling member 1 is configured to have a strength capable of withstanding the earth pressure received from the surrounding ground.

Of these, the filling member 1 shown in FIG. 2 has a lattice-like filling member main body 11 composed of blocks divided vertically into two so as to form a square columnar shape having a square plane when combined. It is composed of a cylindrical bottom member 12 arranged at the bottom of the accommodating portion 19 of the rainwater permeation main body 21 formed in the substantially central portion of the member main body 11. The filling member main body 11 includes an inner surface 14 that defines the accommodating portion 19 and the surrounding ground 6.
The outer surface 15 that is in contact with is connected to the outer surface 15 through the grid eyes 11a and the voids 16. In addition, the lattice-shaped filling member main body 11 has dense lattices or thick lattices so that it can withstand earth pressure from the surrounding ground, and the porosity thereof is 15 to 30%. It is preferable to set it to a degree. In order to prevent the water permeable sheet 3 from entering the filling member main body 11 under the earth pressure, the area of the grid 11a formed on the outer surface 15 of the filling member main body 11 (the same applies to the top surface and the bottom surface). It is preferable to set the size to about 1.5 to 15 cm ² . The filling member body 1
The area of the grid 11a formed on the outer surface 15 (the same applies to the top surface and the bottom surface) of No. 1 is formed to be larger than the above value, and 1.5 to 15 are provided between the filling member main body 11 and the water permeable sheet 3.
You may arrange | position the plate-shaped member which has many through holes with a size of about cm < ² >. Further, the bottom surface of the filling member main body 11 may be bottomless or bottomed, and in the case of bottomed, it is desirable to form a large number of through holes as necessary. Further, in the case of having a bottom, the bottom may be formed integrally with the filling member main body 11 or may be formed separately. The bottom member 12 is
A large number of through holes 12a are formed in the vertical direction. The bottom member 12 can also be formed in a lattice shape like the filling member main body 11.

Further, the filling member 1 shown in FIG. 3 has a cylindrical filling member main body 11 composed of blocks which are vertically divided into two pieces so as to form a square columnar shape of a square plane when combined, and the filling member. It is composed of a columnar bottom member 12 arranged at the bottom of the accommodating portion 19 of the main body 21 and a lid member 13 for closing the upper surface of the filling member main body 11, which is formed substantially in the center of the main body 11. . The filling member main body 11 connects the inner surface 14 that defines the accommodating portion 19 and the outer surface 15 that is in contact with the surrounding ground 6 through a large number of through holes 11 b and voids 16 formed in the tubular filling member main body 11. Is configured. The area of the through hole 11b formed in the outer surface 15 (the same applies to the bottom surface and the lid member 13) of the filling member main body 11 is to prevent the water permeable sheet 3 from entering the filling member main body 11 under the earth pressure. It is preferable to set the size to about 1.5 to 15 cm ² . It is desirable to form reinforcing ribs 11c in the filling member main body 11 so as to partition the voids 16 therein, and also to form a large number of through holes 11d in the reinforcing ribs 11c. The reinforcing ribs 11c are provided so that the filling member main body 11 can withstand the earth pressure from the surrounding ground, and the shape such as the thickness of the reinforcing ribs 11c, the number and the position of the reinforcing ribs 11c are different from those of the filling member main body 11. It can be arbitrarily set according to the shape and the like. The lid member 13 is obtained by dividing a flat square plate into two and forming a large number of through holes 13a. This lid member 13 is not divided,
Alternatively, the cover member 13 may be formed of a flat square plate, or the lid member 13 may be integrally formed with the filling member main body 11. In addition,
The bottom surface of the filling member main body 11 may be bottomless or bottomed, and the configuration of the bottom member 12 is the same as that of the filling member 1 shown in FIG.

Further, the filling member 1 shown in FIG. 4 has a lattice-like filling member main body 11 composed of blocks which are vertically divided into two blocks so that when they are combined, they form a square columnar shape having a square plane. It is composed of a square-column-shaped bottom member 17 having a square shape in a plane and arranged at the bottom of the main body 11. The filling member main body 11 is configured so that the inner surface 14 that defines the housing portion 19 and the outer surface 15 that is in contact with the surrounding ground 6 are communicated with each other through the grid eyes 11 a and the voids 16. Bottom member 1
7 is formed in a plane lattice shape having reinforcing ribs 17b so that a large number of through holes 17a are formed in the vertical direction. In this case, the height H of the bottom member 17 can be set arbitrarily, and by preparing a plurality of types of bottom members 17 having different heights H as necessary,
It is possible to easily provide the filling member adapted to the amount of introduced rainwater, the property of the ground, and the like. The filling member body 1
The bottom surface of 1 may be bottomless or bottomed, and the size and the like of the grid eyes 11a are the same as those of the filling member 1 shown in FIG.

Further, the filling member 1 shown in FIG. 5 has a cylindrical filling member main body 11 composed of blocks vertically divided into two so as to form a square columnar shape having a square plane when combined, and the filling member. It is composed of a square-column-shaped bottom member 17 having a square shape in a plane and arranged at the bottom of the main body 11, and a lid member 13 that closes the upper surface of the filling member main body 11. The filling member main body 11 connects the inner surface 14 that defines the accommodating portion 19 and the outer surface 15 that is in contact with the surrounding ground 6 through a large number of through holes 11 b and voids 16 formed in the tubular filling member main body 11. Is configured. It is desirable to form reinforcing ribs 11c in the filling member main body 11 so as to partition the voids 16 therein, and also to form a large number of through holes 11d in the reinforcing ribs 11c. In the case of this filling member as well, similar to the filling member 1 shown in FIG. 4, the height H of the bottom member 17 can be arbitrarily set, and if necessary, a plurality of bottom members 17 having different heights H can be provided. By preparing the kind, it is possible to easily provide the filling member adapted to the amount of introduced rainwater, the property of the ground, and the like. The bottom surface of the filling member main body 11 may be bottomless or bottomed, and the configuration of the lid member 13 and the size of the through hole 11b are similar to those of the filling member 1 shown in FIG.

By the way, the form of the filling member 1 is not limited to that shown in FIGS. 2 to 5. For example, the shape of the filling member is combined like the filling member 1 shown in FIG. At this time, it can be formed into any shape such as a circular column in a plane, and the number of divisions of the filling member can also be divided into any number, such as four, at any position. The dividing method may be either vertical division or horizontal division, but basically, it forms a storage part for rainwater infiltration masu, and a void that connects the inner surface that partitions this storage part and the outer surface that is in contact with the surrounding ground. By forming the, it is possible to adopt any form that allows the rainwater introduced into the rainwater permeating trough to permeate into the surrounding ground from the peripheral surface including the bottom surface of the filling member.

By the way, when the filling member main body 11 is divided into a plurality of blocks to be formed, the filling member 1 shown in FIG.
As described above, a locking portion that locks adjacent blocks of the filling member main body 11 to each other, for example, a locking protrusion 18 a and a locking hole portion 18 b may be formed on the joint surface 18 of the filling member main body 11. it can. As a result, the filling member 1 formed by being divided into a plurality of blocks can be accurately installed in the excavation hole. Since the earth pressure of the surrounding ground acts on the backfilled filling member 1 and the filling member 1 does not separate in the ground, the locking portions 18a and 18b make the filling member 1 an excavation hole. It is sufficient that the filling members 1 formed by being divided into a plurality of blocks have a locking strength such that the locking of the filling members 1 with each other is not released when they are installed inside.

[0019]

According to the synthetic resin filling member for rainwater infiltration equipment of the present invention, when constructing the rainwater infiltration equipment, basically, a heavy material such as crushed stone or sand is not required,
Since it is easy to handle, the work load of construction work can be reduced, and since the existing members are used, the construction accuracy and work efficiency can be improved.

Further, by forming the synthetic resin filling member for rainwater permeation equipment by dividing it into a plurality of blocks, the filling member can be handled more easily, and therefore, the work load of construction work can be reduced.

Further, by forming a locking portion for locking the adjacent blocks to each other on the joint surface of the blocks, it is possible to accurately install the divided synthetic resin filling member for rainwater infiltration equipment in the excavation hole. Therefore, the construction accuracy and work efficiency can be further improved.

[Brief description of drawings]

FIG. 1 is a structural diagram showing rainwater infiltration equipment using a synthetic resin filling member for rainwater infiltration equipment of the present invention.

FIG. 2 is an exploded perspective view showing a synthetic resin filling member for rainwater infiltration equipment of the present invention.

FIG. 3 is an exploded perspective view showing a synthetic resin filling member for rainwater infiltration equipment of the present invention.

FIG. 4 is an exploded perspective view showing a synthetic resin filling member for rainwater infiltration equipment of the present invention.

FIG. 5 is an exploded perspective view showing a synthetic resin filling member for rainwater infiltration equipment of the present invention.

FIG. 6 shows a synthetic resin filling member for rainwater infiltration equipment of the present invention, (a) is a plan view, (b) is a side view, and (c) is a sectional view taken along line I-I of (b). .

FIG. 7 is a structural diagram showing a conventional rainwater infiltration facility.

[Explanation of symbols]

 1 Filling member made of synthetic resin for rainwater infiltration equipment 11 Filling member main body 14 Inner surface 15 Outer surface 16 Gap 18 Joining surface 18a Locking part 18b Locking part 19 Storage part 2 Rainwater penetrating 3 Water permeable sheet 6 Ground

Claims (3)

[Claims] 1. A synthetic resin for rainwater infiltration equipment, characterized by forming a storage portion for rainwater infiltration masu and forming a void for communicating an inner surface defining the storage portion with an outer surface in contact with the surrounding ground. Filling member. 2. The synthetic resin filling member for rainwater infiltration equipment according to claim 1, wherein the synthetic resin filling member for rainwater infiltration equipment is formed by being divided into a plurality of blocks. 3. The synthetic resin filling member for rainwater infiltration equipment according to claim 2, wherein a locking portion for locking adjacent blocks to each other is formed on the joint surface of the blocks.