JP2002097707A - Storage facility and penetration facility for rain water and the like - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a storage facility and a penetration facility, for rainwater and the like, which are highly porous and strong as well as easy of operational handling. SOLUTION: The storage facility and the penetration facility for rainwater and the like are provided with an excavated part which is made by digging the ground and filling materials which are put side by side horizontally and also piled up perpendicularly above gravels or the like that are spread all over the bed of the excavated part. The filling materials constitute following characteristics. Some members of hollow shafts with openings at top and bottom surfaces are installed at particular intervals and connected each other to be made to one body by connectors and frames. The connectors are provided at a slant against the frames, while the frames which connect hollow shafts on the outer peripheral sides are made to have approximately the same height as the connectors, and the hollow shafts are installed at least at corners, the middle part and/or the center part of the frame. An impermeable layer could be used to cover a bed and a wall surface in the inner peripheral surface of the excavated part.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an underground water storage tank for storing rainwater or the like in a residential area or a factory site, wherein the underground water storage tank is filled with a filler for supporting a load applied to a permeable layer covering an upper portion. The present invention relates to rainwater storage facilities and infiltration facilities.

[0002]

2. Description of the Related Art In recent years, since most of the ground surface in urban areas is covered with impervious surfaces such as buildings and pavements, rainwater does not penetrate underground and flows into lowlands to flood houses, cause rivers to flood. The danger of flooding is increasing. In addition, the amount of water used is increasing year by year, and there is a risk of water shortage if the amount of rainfall at the water source is small. For that reason, water measures have been greatly highlighted. Therefore, after storing rainwater for a certain period of time, it is sequentially released into rivers and the like, or actively penetrates underground to prevent flooding of rivers and flooding of houses due to rainwater, etc. Rainwater storage facilities and infiltration facilities for pumping and using have been proposed.

As such a rainwater storage and permeation facility, for example, a “rainwater storage and permeation facility” described in Japanese Patent Publication No. 4-26648 and a “rainwater storage and permeation facility” described in Japanese Patent Publication No. 4-35580 are disclosed. There is a "penetration tank". In the former facility, a tank is formed by digging the ground, and a plurality of container-like members are vertically and horizontally arranged and filled in the tank from the bottom to the vicinity of the ground line, and the top is covered. It is characterized by applying means. On the other hand, the latter tank forms a tank portion by digging down the ground, and in the tank portion, from the bottom to the vicinity of the ground line, is filled with partition frames divided into a plurality of partitions vertically and horizontally and vertically. The uppermost part is provided with a covering means.

[0004]

The "rainwater storage and infiltration facility" constructed as described above is capable of temporarily storing rainwater and the like temporarily and allowing rainwater to permeate underground in the long term. However, there are the following problems. That is, in the former "storage and penetration facility for rainwater or the like", it is a container-like member to be filled in the tank portion, the container-like member is a box-like member having a bottom, and the peripheral side plate is provided at the bottom. It is configured in a tapered shape that slightly decreases toward it. If these members are arranged vertically and horizontally and a vertical space will be created, these parts must be filled.

Further, considering the strength, it cannot be made too large, and the size actually used is 360 width.
It is a small container measuring mm × 360 mm × 260 mm in height. With this size, the number of used parts is 30 pieces / m ³ , and the number of used parts increases, and the number of connection points increases accordingly.
Therefore, there is a problem that not only the work is troublesome but also the cost is increased.

On the other hand, the latter “rainwater storage and infiltration tank”
In this case, the tank is filled with the frame so that the filling is easy, but since the nesting is not possible, a large volume is required for transportation and storage. Therefore, there is a problem that transportation and storage costs are high.
The present invention has been made in view of the above situation, and provides a storage facility and a permeation facility for rainwater and the like, which have a high porosity, are robust, and easy to construct. The present invention also provides a filler for filling the facility, which is advantageous for transportation and storage.

[0007]

The present invention has the following configuration to achieve the above object. That is, the infiltration facility for rainwater or the like according to the present invention is composed of an excavated portion in which the ground is dug down, and a filler formed by laying gravel or the like on the bottom of the excavated portion, laying horizontally on the excavated portion, and vertically stacking. In the filling body, a plurality of hollow pillars having upper and lower surfaces opened are arranged at predetermined intervals, and the hollow pillars are integrally connected to each other by a connecting material and an edge frame, and the connecting material is an edge frame. Provided in an oblique direction with respect to, the edge frame connecting the outer peripheral hollow column is substantially the same height as the connecting member, the hollow column,
It is characterized by being arranged at least at the corners of the edge frame and at the middle and / or center thereof. Further, in a storage facility for rainwater or the like, a digging portion dug into the ground, and an impermeable layer laid on a bottom portion and a wall surface of an inner peripheral surface of the digging portion,
It consists of a filling body laid horizontally in the bottom of the excavation part and stacked vertically, and the filling body is formed by arranging a plurality of hollow pillars having open upper and lower surfaces at predetermined intervals and forming a hollow body. The column portions are integrally connected by a connecting member and an edge frame, the connecting member is provided in an oblique direction with respect to the edge frame, and the edge frame connecting the hollow pillar portions on the outer peripheral side has substantially the same height as the connecting member. No, the hollow pillar is provided at least at a corner of an edge frame and at an intermediate portion and / or a central portion thereof.

[0008] A connector insertion hole is provided in an edge frame of the filling body, and a horizontal connection can be achieved by inserting a connector into the connector insertion hole. Further, an engaging portion including a pawl and a pawl engaging portion is provided on an edge frame of the filling body,
You may make it connect in a horizontal direction by engaging the said nail | claw and the nail | claw locking part. In addition, water-permeable boards are laid on gravel etc.
It is preferred to stack the packing thereon. The shielding plate attached to the outer peripheral surface of the outer side of the stacked fillers, and the lid plate is a soil and sand intrusion prevention plate, and the earth and sand intrusion prevention plate is configured to be attached to the filler, and the edge frame of the filler is A concave portion for fitting the hook of the earth and sand intrusion prevention plate and a locking portion for locking the hook are formed, and the concave portion and the locking portion are
Each of the two sides is formed on each side, and the earth and sand intrusion prevention plate is provided with a hook for engaging the engaging portion of the filling body with an edge frame provided on a peripheral edge, and a notch for fitting the hook. May be formed two by two.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The illustrated embodiment will be described below in detail. FIG. 1 shows a first embodiment of the present invention. First, as shown in FIG. 1, a digging portion 119 is formed in the ground by digging down a ground 117. In the illustrated embodiment, the wall surface of the excavation portion 119 is formed substantially vertical, but may be a tapered surface that is widened upward at a certain angle. Gravel 12 etc. is placed at the bottom of the excavation part 119.
4 and, if necessary, the earth and sand intrusion prevention plate 3 described later.
1 and the like, through which water-permeable substrates 31a are laid out and arranged horizontally, and vertically stacked vertically.
Consists of

It is preferable that the fillers 1 fix the fillers adjacent to each other in the horizontal direction. For example, as described later, a hole for inserting a connector is provided in an edge frame of the fillers 1.
It can be integrally connected by using a connecting tool inserted into the connecting tool insertion hole. The filling body 1 forms water reservoir spaces, and these spaces communicate with each other to form a water reservoir space.

A shielding plate 31b having water permeability, such as an earth and sand intrusion prevention plate 31, is attached to the outer peripheral surface of the stacked body of the packing bodies 1 connected in the vertical and horizontal directions. Further, a lid plate 31c such as a sediment intrusion prevention plate 31 is placed as a lid to prevent intrusion of earth and sand from the upper surface of the filling body 1 located at the upper part. Thereafter, the outer peripheral portion is filled with backfilled earth and sand 120, and a covering layer 121 of earth and sand or the like may be provided on the upper portion so that rainwater or the like can penetrate. In the excavation part 119, an inflow port 123 for rainwater or the like which leads to a gutter in a residential area or the like, a gutter of a house, or the like.
Is provided.

In the rainwater storage facility and infiltration facility configured as described above, rainwater permeates from the upper coating layer 121 and flows in from the inflow port 123 and is stored in the excavation section 119. Since the filler 1 has a sufficient porosity, it can be effectively stored, and gradually penetrates into the ground from the side surface and the bottom surface of the excavation part 119 with the passage of time. Therefore, even if there is a torrential rain, rainwater and the like can be temporarily stored in the excavation section 119, so that the house is not flooded, and the river is not flooded, and the water is infiltrated into the ground. Groundwater recharge is possible.

Next, an embodiment in which rainwater or the like is stored will be described. First, as shown in FIG.
The excavation part 119 is formed in the ground by digging down 7. In the illustrated embodiment, the wall surface of the excavation portion 119 is formed substantially vertical, but may be a tapered surface that is widened upward at a certain angle. An impermeable layer 125 made of concrete, a resin sheet, a rubber sheet, or the like is formed on a bottom portion and a wall surface of the inner peripheral surface of the excavation portion 119. After that, the filler 1 is filled in these excavation parts 119.

After that, a cover plate 31c such as a sediment intrusion prevention plate 31 is placed on the upper part of the stacked body of the packing body 1 connected in the vertical direction and the horizontal direction, and a cover layer made of the earth and sand is provided so that rainwater or the like can penetrate. 121 or an impermeable layer made of concrete or the like. The excavation section 119 is provided with an inflow port 123 for rainwater or the like that communicates with a gutter in a residential area or the like, a rain gutter in a house, and a water intake pipe 127 for drawing rainwater or the like to the outside.

In the rainwater storage facility according to the second embodiment, rainwater and the like can be stored in the underground water storage tank, so that even in the event of a torrential rain, houses may be flooded or rivers may be flooded. I will not let you. In addition, by appropriately pumping the stored water through the water intake pipe 127, the stored water can be stably used as daily water for general use or a middle water supply, and effective use of water resources can be achieved.

Next, a packing material constituting a storage facility and a permeation facility for rainwater or the like will be described. As shown in FIG. 3 and subsequent figures, the filling body 1 includes a plurality of hollow pillars 3 having upper and lower surfaces opened.
Are arranged at predetermined intervals, and the upper portions of the arranged hollow pillars 3 are integrally connected to each other by a spar 5 and an edge frame 7 which are connection members. The spar 5 as the connecting member is provided obliquely with respect to the edge frame 7, and connects the outer peripheral side hollow pillar portion to the edge frame 7.
Is provided at substantially the same height as the spar 5. That is, the hollow pillars 3 located on the outer peripheral side of the hollow pillars 3 are connected to each other at the same height position as the spar by the plane rectangular frame 7.

Therefore, the hollow pillars 3 are disposed at least at the four corners of the edge frame 7 and at the middle and center thereof. The spar 5 is provided obliquely to the side surface of the edge frame 7, and as shown in FIG. 3, the spar 5 connects the diagonal of the four corners and has a hollow located at the middle in the center. The pillars 3 are connected to form a rhombus. By arranging the hollow pillars 3 as described above, the porosity in a plane can be increased, and the porosity can be 95%. The hollow pillars provided in the middle part and the center part may be provided only in one of the middle part and the center part when the load supported by the filler is small. The number and position of the pods are determined in consideration of the load supported by the pod.

The hollow column 3 is formed by opening the upper and lower surfaces of a cylindrical pipe 10 and is provided with a reinforcing rib 11 inside. The reinforcing ribs 11 are provided such that ribs 11a are provided in parallel and opposed to each other. The upper ribs are combined in a girder shape at the upper portion, and the opposing ribs are connected to each other. The cross-shaped upper plate 1
3 protrudes slightly upward from the upper end of the hollow column 3. Therefore, in the portion where the ribs 11a are connected, a flat cross-shaped box shape is formed with an open bottom surface, and the upper portion of the box shape is formed to protrude from the upper end of the hollow column portion 3. As described above, the reinforcing rib 11 is provided inside the tubular pipe 10.
Is provided, the strength can be increased.
The reinforcing rib 11 can be changed to an arbitrary shape as described later, and may be omitted as appropriate.

At the end of the cross-shaped upper plate 13, fitting projections 15 are provided so as to face each other. The fitting protrusions 15 have a U-shape in a plane, have substantially the same width as the end of the upper plate 13, and are formed independently of each other. When the packings 1 are stacked in the vertical direction, the fitting projections 15 of the lower packing are fitted to the lower ends of the hollow pillars 3 of the upper packing, thereby being fixed and integrally assembled. Four substantially triangular voids 17 are formed between the cruciform upper plate 13 and the inner surface of the hollow pillar 3, and when the filler is assembled through the voids 17, the hollow pillars to which rainwater or the like is connected. It is possible to flow down the part 3.

The hollow columns 3 are integrally connected by the girders 5 at the upper part. The spar 5 is a double-walled structure having a U-shaped cross section with an open bottom surface, an upper surface of which protrudes slightly from the upper surface of the hollow column 3, and is connected to the substantially same plane as the cross-shaped upper plate 13. , A reinforcing rib 19 is provided inside. Since there is a step between the upper end of the hollow column 3 and the upper surface of the spar 5, a gap is formed at the lower end of the hollow column 3 when the fillers are vertically connected and assembled. The inflow and outflow of rainwater and the like into and from the department can be performed. A vent hole 20 is provided on the upper surface of the girder 5.

The connecting position between the beam 5 and the hollow column 3 is not limited to the upper part of the hollow column 3, and the structure of the beam 5 is not limited to the above embodiment. It may have a triple structure, or a structure in which plate bodies are provided in parallel, opened up and down and connected by ribs, and may be any other structure such as a single plate.

The edge frame 7 has substantially the same structure as that of the spar 5, and is a double-walled structure having an open lower surface. Border frame 7
Is provided with a reinforcing rib 21 inside thereof, and is connected to the hollow column 3 by a projection 23 at four corners and a projection 25 in the middle. The edge frame 7 connects one of the hollow pillars 3 located on the outer peripheral side, and has an outer surface that is flat so that the fillers are in close contact with each other when the fillers are arranged side by side. The edge frame 7 is formed with a concave portion 27 into which a hook of the earth and sand intrusion prevention plate described later is fitted, a locking portion 29 for locking the hook, and a coupling tool insertion hole 30. The recess 27 and the locking portion 29 are formed two on each side. For example, on the upper side of FIG. 1, a locking portion 29 is formed at the left end, and a concave portion 27 is formed at a predetermined interval inside the locking portion 29, while a concave portion 27 is formed at the right end and inside the concave portion 27. The locking portions 29 are formed at predetermined intervals. In other sides, the positional relationship and the interval between the concave portion 27 and the locking portion 29 are formed in the same manner.

As shown in FIG. 6, the recess 27 is formed by forming a step 27a in which the outer corner of the edge frame 7 is cut out. As shown in FIG. 7, the locking portion 29 is formed by providing a projection 29a on the edge of a step 27a in which the outer corner of the edge frame 7 is cut off, like the recess 27. . The projection 29a is attached by engaging the hook of the earth and sand intrusion prevention plate. In addition, as shown in FIG.
A horizontal slit 30a provided on the upper surface of the edge frame 7 in parallel with the side surface and a vertical slit 30b communicating with the slit 30a are formed on the outer surface.

Next, the earth and sand intrusion prevention plate 31 attached to the filling body 1 will be described with reference to FIGS. The earth and sand intrusion prevention plate 31 is formed by
One side of a plate 33 having substantially the same size as the hollow column 3
Are provided, and the annular ribs 35 are connected by reinforcing rib groups 37 provided vertically, horizontally and diagonally, and an edge frame 39 is provided on the periphery of the plate 33. The annular rib 35 is formed in such a size that the lower end of the hollow column 3 can be inserted. The reinforcing rib group 37 and the edge frame 39
Is the same height as the annular rib 35. On the other hand, the annular rib 35
The inner reinforcement ribs 40 are low in height so that the hollow pillars 3 can be fitted therein, and are formed to be about half the height of the reinforcement rib group 37. A large number of small holes 41 into which rainwater or the like flows are formed between the ribs in the plate body 33.

The edge frame 39 is formed with a hook 43 to be engaged with the engaging portion 29 of the filling member 1 and a notch 45 into which the hook 43 is fitted. The hook 43 and the notch 45 are formed two on each side. For example, a notch 45 is formed on the left end on the lower side of FIG.
The hook 43 is formed at a predetermined interval inside the hook, the hook 43 is formed at the right end, and the notch 45 is formed at a predetermined interval inside the hook 43. The relationship between the hook 43 and the notch 45 is the same in other sides. Notch 4
The depth of the hook 5 is almost the same as or slightly greater than the height of the hook 43.

The positional relationship and the interval between the hook 43 and the notch 45 are the same as the positional relationship and the interval between the concave portion 27 and the locking portion 29. When the earth and sand intrusion prevention plate 31 is used as a lid on the upper surface of the filling body 1, the hook 43 is
7 and fixed, and the earth and sand intrusion prevention plate 31 is
When the hook 43 is attached to the side of the
(See FIG. 1).
4). In addition, since the hooks 43 and the notches 45 are configured as described above, even when the surfaces of the earth and sand intrusion prevention plates 31 on which the hooks protrude face each other and face each other, one of the hooks 43 is in the other notch 45. And can be stored and transported in a state where the hooks 43 are stored in each other.

Further, when the packing bodies 1 are laid side by side in a state of being lined up and fixed, a connecting tool as shown in FIG. 16 may be used. That is, the H-shaped connecting tool 47 is
a and a connecting plate 47b connected at right angles to the parallel plate 47a. First, the fillers 1 are laid out in parallel in the horizontal direction, the connecting tool insertion holes 30 are abutted against each other as shown in FIG. 15, and the parallel plates 47a are inserted into the respective horizontal slits 30a. Slit 3
The connecting plate 47b may be inserted into 0b. With such a connection method, the parallel plate 47a prevents the filling bodies 1 from separating from each other, and the connection plate 47 inserted into the longitudinal slit 30b.
b prevents displacement in the sliding direction. By such a connection method, the adjacent packing bodies 1 can be connected integrally.

FIGS. 17 to 23 show a second embodiment of the filling body constituting the present invention. Since the basic configuration is the same as that of the filling body 1, the same components are denoted by the same reference numerals, and different configurations will be described. The filling body 50 differs from the filling body 1 in the upper structure of the hollow column and the connection structure in the edge frame. The hollow column portion 51 is formed by forming the upper portion of the tubular pipe 53 to have a slightly smaller outer diameter than the inner diameter of the tubular pipe 53. That is, the upper part of the hollow column part 51 is
The lower end 3 has a small-diameter portion 55 that can be fitted, and a step portion 57 that is flush with the upper surface of the spar 5 is formed. Further, a reinforcing rib 11 is provided inside the tubular pipe 53. The small-diameter portion 55 protrudes from the upper surface of the spar 5 and is configured such that the lower end portion of the upper tubular pipe 53 is fitted when stacked. The configuration of the reinforcing rib 11 has been described in the first embodiment. The spar 5 and the hollow column 5
The connection position with 1 is not limited to the upper part of the hollow column 51.

The edge frame 7 connects hollow pillars 51 located on the outer peripheral side. The outer surface of the edge frame 7 is formed as a flat surface so as to be in close contact with each other when the fillers are arranged side by side. An engagement portion 59 is formed on the outer surface of the edge frame 7. As shown in the upper side of FIG. 17, the engaging portion 59 includes a pawl 60 protruding toward the left corner and a pawl engaging portion 61 formed near the right corner. The pawl 60 includes a downward pawl 60a and an upward pawl 60b.
As shown in (1), they are provided so as to be shifted from each other in the vertical direction. The pawl locking portion 61 includes an upward locking portion 61a and a downward locking portion 61b, and is formed to be shifted at the same interval as the pawl 60.

As shown in FIG. 20, the upward locking portion 61a is provided with a projection 61d on the edge of a concave portion 61c which is recessed from the upper surface of the U-shaped cross-sectional frame 7 with a width wider than the width of the pawl 60. It is formed by providing. Downward claws 60a
Are fitted in the concave portions 61c and engage with the protrusions 61d. On the other hand, as shown in FIG. 21, the downward locking portion 61b is provided with a cutout portion 61e recessed from the lower surface of the U-shaped cross-sectional frame 7 with a width wider than the width of the pawl 60, and a rib 61f on the inner surface. It is formed by providing. The upward pawl 60b fits into the notch 61e, and the rib 61
engage with f.

Therefore, when the filling members 50 are arranged in parallel in the horizontal direction, as shown in FIG. 22, the downward claws 60a engage with the adjacent upward locking portions 61a, and the upward claws 60b engage with the adjacent downward locking portions. By engaging with the part 61b, it can be integrally connected. When the packing bodies 50 are vertically stacked, as shown in FIG. 23, the small-diameter portion 55 of the hollow column portion 51 is attached to the upper hollow column portion 5.
The lower ends of the first tubular pipes 53 are fitted together to be integrally connected. As described above, the filling body 50 is integrally connected in the horizontal direction and the vertical direction, thereby preventing the displacement as a whole, and can be a high-strength structure.

Next, FIG. 24 shows a third embodiment of the filler constituting the present invention. Since the filler 63 is basically the same as the above embodiment, the same components are denoted by the same reference numerals, and only different components will be described. The upper portions of the plurality of hollow pillar portions 65 having upper and lower surfaces opened are connected at predetermined intervals by the girders 5, and the hollow pillar portions 65 located on the outer peripheral side of the hollow pillar portions 65 are formed in a plane square cross section in a U-shape. It is connected and fixed by the edge frame 7. The lower part of the cylindrical pipe 67 constituting the hollow column part 65 is reduced in diameter to form a small diameter part 69, which is formed so as to be fittable to the upper end part of the cylindrical pipe 67 of the lower filling body.
A reinforcing rib 70 is provided inside the cylindrical pipe 67. As shown in FIG. 25, the reinforcing ribs 70 cross the ribs 70a and combine them in a cross shape, and connect the opposing ribs at the top. Note that the reinforcing rib 70 can be omitted, and can be changed to the reinforcing rib 11.

When the packing members 63 are vertically stacked, as shown in FIG. 26, a small-diameter portion 69 is formed in the lower hollow column portion 65.
And is integrally connected to the upper part of the cylindrical pipe 67.
In this embodiment, the engaging portions 71 that integrally connect the filling bodies 63 in the horizontal direction are configured in a nested manner. That is, the engaging portion 71 is provided with a T-shaped protrusion 73 on one side surface of the U-shaped cross-sectional frame 7 and a T-shaped groove 75 on the opposite side surface to which the T-shaped protrusion 73 can be fitted. It becomes. Filler 63 horizontally adjacent to the T-shaped groove 75
By inserting the T-shaped projection 73 from above, they are integrally connected.

Next, FIG. 27 shows a fourth embodiment of the filler constituting the present invention. The filling body 77 is a hollow column 7
Reference numeral 9 differs from the above-described embodiment in that it is a tubular pipe 80 having a shape gradually reduced in diameter toward the lower end. Since other configurations are the same as those of the first to third embodiments,
The same reference numerals are given and the description is omitted. In this embodiment, a reinforcing rib 11 and a reinforcing rib 70 are provided in a cylindrical pipe 80.
Is provided, the lower end of the tubular pipe 80 can be fitted to the upper part of the lower hollow column 79 to be integrally connected when stacked vertically. .

However, when the reinforcing rib 11 and the reinforcing rib 70 are omitted, a complete hollow body is formed, so that the cylindrical pipes 80 are fitted to each other, and cannot be stacked vertically. Therefore, the upper hollow column 7
It is preferable that an adapter is interposed between the lower surface of the lower cylindrical member 9 and the upper surface of the lower hollow column 79. For example, an adapter having a structure as shown in FIG. 28 can be used. The adapter 81 is provided with a locking portion 85 placed on the upper end surface of the cylindrical pipe 80 on the outer surface of the insertion portion 83 fitted into the upper end portion of the cylindrical pipe 80, and a cross-shaped reinforcement provided on the inner surface of the insertion portion 83. An insertion portion 89 that fits into the lower end of the hollow pillar portion 79 protrudes from the upper surface of the rib 87. By using such an adapter 81, the packing bodies 77 can be stacked vertically and connected integrally. Also, the adapter 81 may be used in the case where the hollow pillar 79 is provided with the reinforcing ribs 11 and the reinforcing ribs 70 in the tubular pipe 80.

In the first to fourth embodiments, transportation,
At the time of storage, the volume can be reduced by inserting the hollow column into the gap between the girders, so that it can be efficiently transported and stored.

FIGS. 29 and 30 show a fifth embodiment of the filler constituting the present invention. In the first to fourth embodiments, the hollow column is connected to the spar 5 and the U-shaped frame 7 in cross section, whereas the filling body 90 is formed by connecting the upper portion of the hollow column 91 to the connection plate 95. Are connected by The connecting plate 95 has a small hole 9
3 is provided and a side plate 9 having an outer peripheral surface connected downward.
It is bordered at 7. That is, the upper surface of the hollow column 91 is opened from the connecting plate 95. The hollow column 91 is formed in the same structure as the hollow column 79 described above. still,
The structure of the hollow column 91 can be changed in the same manner as in any of the above embodiments.

A telescopic engagement portion 99 is provided on the outer surface of the side plate 97. The engaging portion 99 is configured by providing a T-shaped projection 100 protruding near one corner of one side and providing a T-shaped groove 101 facing the L-shaped projection near the other corner. ing. When the filling bodies 90 are arranged side by side, the T-shaped projection 100 is fitted into the T-shaped groove 101 and assembled integrally. The fillers 90 can be vertically stacked by using an adapter 81 as in the fourth embodiment shown in FIG. 27. In order to arrange them horizontally in the horizontal direction, the engaging portions 99 provided on the side surfaces are used. May be integrally connected.

FIG. 31 shows a sixth embodiment of the filler constituting the present invention. The filling body 103 is the fifth body shown in FIG.
The only difference is that the hollow column portion 91 in the embodiment is a square pipe 105. The other configurations are the same, so the same reference numerals are given and the description thereof is omitted. When the packing bodies 90 and 103 are transported and stored, the hollow columns may be stacked by fitting each other, or the hollow columns may be inserted into each other with the hollow columns facing each other. ,
The volume ratio can be reduced to approximately one half.

The cross-sectional shape of the hollow column may be any shape such as a triangle, a polygon, and an ellipse in addition to the circle and the square as in the embodiment. Further, it is needless to say that the structure of the pipe and the reinforcing rib or the structure of the engaging portion which constitute the hollow column portion can be appropriately combined and implemented.
Further, in each of the above embodiments, the planar shape of the filling body is a square shape, but the present invention is not limited to this, and may be an arbitrary shape such as a planar triangle, a polygon, and a circle.

Next, an example of the earth and sand intrusion prevention plate used in the packing material of the third to sixth embodiments will be described. FIG.
Shows an example of the earth and sand intrusion prevention plate used for the filling body of the third embodiment shown in FIG. The earth and sand intrusion prevention plate 110 is formed in a mesh shape by providing an obliquely running rib 113 inside the frame body 111, and an L-shaped projection is opposed to the side surface of the frame body 111 similarly to the T-shaped groove 75. A T-shaped groove 115 is formed. The T-shaped protrusion 73 is inserted into the T-shaped groove 115. The T-shaped groove 115 may be changed according to the structure of the engaging portion of the filler used. Instead of the rib structure, a structure in which a number of small holes are formed in the plate, such as the earth and sand intrusion prevention plate 31, may be used.

[0042]

According to the rainwater storage facility and infiltration facility according to the present invention, a large amount of rainwater can be stored because the facility is filled with a filler having a high porosity. Also, since the vertical direction is connected by a hollow pillar,
The storage facility and the permeation facility are lightweight, have sufficient strength against a load, and are robust. Further, when the wall surface around the excavation part is formed so that rainwater or the like can penetrate, it can be penetrated into the ground, and groundwater can be recharged. Also, when a water intake pipe is installed in the excavation part,
By pumping up the water via the water intake pipe, the stored water can be used stably as daily utility water or middle water supply, and effective use of water resources can be achieved.

[Brief description of the drawings]

FIG. 1 is an explanatory sectional view showing a permeation facility for rainwater or the like according to the present invention.

FIG. 2 is an explanatory sectional view showing an embodiment of a rainwater storage facility according to the present invention.

FIG. 3 shows a first embodiment of a filler constituting the present invention, wherein an upper half is a plan view and a lower half is a bottom view.

FIG. 4 is a side view in which a part of FIG. 3 is sectioned;

FIG. 5 is a perspective view of a main part in which a part of a hollow pillar portion and a girder serving as a connecting member is sectioned.

6A is a sectional view of a concave portion, and FIG. 6B is a perspective view of the concave portion.

7A is a cross-sectional view of a locking portion, and FIG. 7B is a perspective view of the locking portion.

8A is a cross-sectional view of a hole for inserting a connector, and FIG. 8B is a perspective view of the hole for inserting a connector.

FIG. 9 shows the earth and sand intrusion prevention plate, wherein the upper half is a plan view and the lower half is a bottom view.

FIG. 10 is a side view of the earth and sand intrusion prevention plate.

FIG. 11 is an enlarged perspective view of an inner surface structure at a corner of the earth and sand intrusion prevention plate.

FIG. 12 is a cross-sectional view of a principal part for explanation showing a relationship between a hook and a notch.

FIG. 13 is a cross-sectional view of a principal part for explanation showing a relationship between a reinforcing rib group and a reinforcing rib inside and outside of an annular rib.

FIG. 14 is a cross-sectional view of a main part for explanation showing an engagement state between a filling body and a sediment intrusion prevention plate.

FIG. 15 is a cross-sectional view of a principal part for explanation showing insertion of a connecting tool when connecting fillers in a horizontal direction.

FIG. 16 is a perspective view of an H-shaped coupling tool.

FIG. 17 shows a filler according to a second embodiment of the present invention, wherein the upper half is a plan view and the lower half is a bottom view.

FIG. 18 is a side view of FIG.

FIG. 19 is a perspective view of an essential part in which a part of a hollow pillar and a girder as a connecting member is sectioned.

FIG. 20 is a cross-sectional perspective view showing an upward locking portion of the engagement portion.

FIG. 21 is a cross-sectional perspective view showing a downward locking portion in the engagement portion.

FIG. 22 is an explanatory cross-sectional view showing an engagement state in an engagement portion.

FIG. 23 is an essential part cross-sectional view showing a fitted state of the hollow pillar portion.

FIG. 24 is a top perspective view of a filler according to a third embodiment of the present invention.

FIG. 25 is a top perspective view showing another embodiment of the reinforcing rib in the hollow pillar portion of the present invention.

FIG. 26 is a cross-sectional view of a main part showing a fitted state of a hollow column.

FIG. 27 is a top perspective view of a filler according to a fourth embodiment of the present invention.

FIG. 28 is a cross-sectional view of a main part in a state where hollow pillars are stacked using an adapter.

FIG. 29 is a top perspective view of a filler according to a fifth embodiment of the present invention.

30 is a cross-sectional view of a main part in FIG. 29.

FIG. 31 is a top perspective view of a filler according to a sixth embodiment of the present invention.

FIG. 32 is an explanatory perspective view showing another example of the earth and sand intrusion prevention plate used with the filler.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Filler 3 Hollow pillar part 5 Digit 7 Edge frame 10 Cylindrical pipe 11 Reinforcement rib 11a Rib 13 Cross upper plate 15 Fitting projection 17 Substantially triangular void 19 Reinforcement rib 20 Vent hole 21 Reinforcement rib 23 Projection 25 Projection 27 concave portion 27a step portion 29 locking portion 29a protrusion 30 connecting hole 30a horizontal slit 30b vertical slit 31 earth and sand intrusion prevention plate 33 plate 35 annular rib 37 reinforcing rib group 39 edge frame 40 reinforcing rib 41 Small hole 43 Hook 45 Notch 47 H-type connector 47a Parallel plate 47b Connection plate 50 Filler 51 Hollow columnar portion 53 Cylindrical pipe 55 Small diameter portion 57 Step 59 Engagement portion 60 nail 60a Downward nail 60b Upward nail 61b For upward nail Locking portion 61a Upward locking portion 61b Downward locking portion 61c Depression 61d Projection 61e Notch 61f Rib 63 Filler 65 Hollow pillar 67 Cylindrical pipe 69 Small diameter part 70 Reinforcement rib 70a Rib 71 Engagement part 73 T-shaped projection 75 T-shaped groove 77 Filler 79 Hollow pillar 80 Cylindrical pipe 81 Adapter 83 Insertion Part 85 Locking part 87 Reinforcement rib 89 Insertion part 90 Filler 91 Hollow column part 93 Small hole 95 Connecting plate 97 Side plate 99 Nesting engagement part 100 T-shaped projection 101 T-shaped groove 103 Filler 105 Square pipe 110 Sediment intrusion prevention plate 111 Frame 113 Rib 115 Engagement protrusion 117 Ground 119 Excavation part 120 Sediment 121 Coating layer 123 Inlet 125 Impermeable layer 127 Intake pipe

Continuing on the front page (72) Inventor Hiroyuki Yai 1-16-14 Shibuya, Shibuya-ku, Tokyo Tokyu Construction Co., Ltd. (72) Inventor Masahiro Samejima 1 Nobesawa, Kaiseicho, Ashigara-gun, Kanagawa Prefecture Meiji Rubber Chemical Headquarters Inside the factory (72) Atsushi Ushio, No. 1, Nozawa, Kaisei-cho, Ashigarashimo-gun, Kanagawa Prefecture Inside the factory at Meiji Rubber Kasei Co., Ltd. F term (reference) 2D063 AA14 DA04

Claims (6)

[Claims] 1. A digging part dug down into the ground, and a filling body which is laid with gravel or the like at the bottom of the digging part, laid horizontally on the digging part, and stacked vertically, the filling body comprising: A plurality of hollow pillars whose lower surfaces are open are arranged at predetermined intervals and the hollow pillars are integrally connected to each other by a connecting member and an edge frame, and the connecting member is provided obliquely with respect to the edge frame, The edge frame connecting the outer peripheral side hollow pillar portions is substantially the same height as the connecting member, and the hollow pillar portions are arranged at least at the corners of the edge frame and at the intermediate portion and / or the central portion thereof. Rainwater storage and infiltration facilities characterized by becoming 2. A digging part dug down into the ground, and an impermeable layer laid on a bottom and a wall of an inner peripheral surface of the digging part.
It consists of a filling body laid horizontally in the bottom of the excavation part and stacked vertically, and the filling body is formed by arranging a plurality of hollow pillars having open upper and lower surfaces at predetermined intervals and forming a hollow body. The column portions are integrally connected by a connecting member and an edge frame, the connecting member is provided in an oblique direction with respect to the edge frame, and the edge frame connecting the hollow pillar portions on the outer peripheral side has substantially the same height as the connecting member. None, A storage facility for rainwater or the like, wherein the hollow column is disposed at least at a corner of an edge frame and an intermediate part and / or a central part thereof. 3. A connector insertion hole is provided in an edge frame of the filler,
The storage facility and permeation facility for rainwater or the like according to claim 1 or 2, wherein the connection facility is horizontally connected by inserting a connection tool into the connection tool insertion hole. 4. An edge frame of the filling body is provided with an engaging portion including a pawl and a pawl engaging portion, and the hook is engaged in the horizontal direction by engaging the pawl and the pawl engaging portion. The rainwater storage facility and permeation facility according to claim 1 or 2, wherein: 5. The method according to claim 1, wherein a water-permeable substrate is laid on gravel or the like laid on the bottom of the excavation part, and a filler is stacked thereon.
Rainwater storage facilities and infiltration facilities described in the section. 6. A shielding plate and a cover plate attached to the outer peripheral surface on the outer side of the stacked fillers are earth and sand intrusion prevention plates, and the earth and sand intrusion prevention plate is configured to be attached to the fillers. The edge frame has a concave portion for fitting the hook of the earth and sand intrusion prevention plate, and a locking portion for locking the hook, and the concave portion and the locking portion are formed two on each side, The earth and sand intrusion prevention plate is characterized in that a hook for engaging the engaging portion of the filling body with an edge frame provided on a peripheral edge and two notches for fitting the hook are formed on each side. The rainwater storage facility and permeation facility according to any one of claims 1, 3 and 4.