JPH0435580B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an infiltration tank for storing natural water such as rainwater required in residential areas and other areas.

[Prior Art] Conventionally, in large housing complexes, etc., if there is enough land, regulating ponds are constructed at appropriate intervals between houses.

The above-mentioned regulating pond is constructed by digging down about 1 meter into the ground over a certain wide area, constructing a side ditch on the edge of the dug area, and connecting the drainage ditch from the surrounding residential area to this side ditch, so that it can be used to prevent flooding from heavy rains, etc. Excess rainwater, etc., is allowed to flow into this reservoir, and water that overflows from the side gutters due to the large amount of water flowing in is also temporarily stored in the regulating pond, so that the above rainwater, etc. accumulates around houses, factories, and other buildings. This is to prevent this from happening.

The side ditches in the above-mentioned regulating ponds are further connected to rivers, etc., and their outflow outlets are opened and closed at appropriate times to allow natural water such as rainwater to drain into the rivers, etc., so as to avoid draining when river water levels are high. It was designed so that

Such regulating ponds are now used as sports grounds, etc., unless there is a particularly heavy rain.

Another example is to create a storage tank by digging deep into the ground and pouring concrete around it and at the bottom, and covering the upper opening of this storage tank with a lid supported by concrete pillars or the like.

In the above example, and similar to the above example, rainwater generated in surrounding residential areas, etc. is made to flow into this area through drainage ditches, and after being stored for a certain period of time, it is sequentially released into rivers, etc. There is. The purpose is to release water to avoid times when river water levels rise due to torrential rains, etc.

[Problem to be solved by the invention] The former example is possible in areas where land is plentiful, but is almost impossible in areas where land prices are high.

The latter example has the drawback of being entirely made of concrete and being expensive. Also, it does not allow rainwater to penetrate underground.

[Means for Solving the Problems] The gist of the configuration of the present invention is to construct a tank part by digging down the ground, and to install a tank in the tank part from the bottom to the vicinity of the ground line.
A compartment frame body partitioned into a plurality of compartments is arranged vertically and horizontally and vertically and filled with water, and the top part is a storage and infiltration tank for rainwater, etc., which is provided with a covering means.

The tank section is basically constructed by simply digging into the ground. Since concrete is not specifically placed on the sides, it is preferable to create an appropriate slope.

The dimensions and shape of the tank section are determined by considering the maximum storage capacity depending on the amount of precipitation in the area.

Further, the partition frame body can be configured in various shapes and sizes of the partitions and the overall size. For example, the planar shape of the above-mentioned sections is configured by selecting a honeycomb shape, a lattice shape, a circular shape, etc.
Or it can be configured by combining some of them. As for the material, plastic or other materials can be appropriately selected. As for the overall planar shape of the partition frame, a rectangular shape such as a square or a rectangle is convenient for filling the tank portion.

Further, as described above, it is convenient to spread gravel on the bottom of the tank portion in advance when the partition frames are arranged in series. Furthermore, even during the vertical arrangement of the partition frame, gravel may be filled into gaps that may occur around the partition frame, depending on the shape of the partition frame.

Further, the covering means may have any arbitrary structure, such as by spreading gravel on the uppermost compartment frame and pouring soil on top of it. In some cases, a structure may be constructed in which a fine mesh material or permeable sheet is placed on the topmost partition frame, gravel is spread on top of this, and soil is further poured on top of this. . In short, the above-mentioned covering means is sufficient as long as it can cover the region of the tank filled with the partition frame without losing water permeability. When soil is used as a covering means, grass and other vegetation can be grown, and trees can also be planted.

A drainage outlet of a side gutter, etc., which collects drainage water such as rainwater from around the house, etc., is connected to this tank part. Further, this tank portion is provided with an outlet connected to a river or the like at a position slightly lower than the drain outlet of the side gutter, to allow overflow to flow out.

[Function] Since the present invention is constructed as described above, it is possible to construct an inexpensive and efficient storage and permeation tank for rainwater, etc.

First, this storage and permeation tank functions as follows.

If this is installed around residential areas, factories, etc., rainwater will flow into the tank through side gutters and other drainage ditches. Since the tank section is filled with partition frames vertically and horizontally and up and down to the vicinity of the ground line, rainwater and the like flows down inside the tank section in a gentle flow. In addition, the above-mentioned tank part is filled with a compartment frame, and depending on the shape of the compartment frame, etc.
Since the surrounding gaps are filled with gravel, the internal void ratio is extremely high. Therefore, it is easy to secure a large capacity, and a sufficiently large amount of rainwater, etc. can be stored. Furthermore, since the surroundings and bottom of the tank are not hardened with concrete or the like, rainwater and the like gradually permeate underground over time.

For example, in the event of torrential rain, etc., rainwater flows into the tank through the side gutters and is temporarily stored in the tank, preventing damage to roads and residential areas. In the long run, the rainwater percolates into the ground and acts according to natural cycles. Moreover, since rainwater permeates into the ground in this way, there is less overflow, and the amount of water discharged into rivers and the like can be reduced.

Moreover, the structure of this rainwater storage infiltration tank is
Since it is mainly composed of a tank part, a compartment frame body filled with the tank part, and a covering means covering the uppermost part of the tank part, it can be constructed at low cost.
Moreover, since the interior is filled with a partition frame, it has sufficient strength.

[Examples] Examples of the present invention will be described below based on the drawings.

First, FIGS. 1 and 2 show an embodiment of the present invention.

As shown in FIG. 1, the tank portion 2 is constructed by digging down the ground 1. The shape of the tank portion 2 is basically a quadrilateral in plan view, and the side wall portion 2a is a gently sloped surface. The bottom part 2b and side wall part 2a of this tank part 2 are in a state where soil is exposed.

The bottom part 2b of the tank part 2 is filled with gravel to form a gravel layer 3, and lattice-like frames 4, 4, . . . are arranged in series on the gravel layer 3.

By the way, the lattice-like frames 4, 4... are particularly suitable for the second
As shown in the figure, the lattice is made up of plate-like members, and six square sections 5, 5, . . . are formed. The lattice-like frames 4, 4, . . . are integrally molded as a whole from plastic.

Therefore, the lattice-like frame bodies 4, 4... are the tank part 2.
Install it inside as follows.

As described above, the gravel layer 3 is formed on the bottom part 2b of the tank part 2, and as shown in FIG. They are arranged horizontally in rows and columns while being in contact with each other at the sides.

Similarly, on each of the lattice-like frames 4, 4 placed on the gravel layer 3 as described above, another lattice-like frame 4, 4 is placed.
... are arranged horizontally and vertically and horizontally.

Thereafter, as shown in FIG. 1, the same arrangement is repeated several times until the lattice-shaped frames 4, 4, .

A flexible and water-permeable plastic sheet 9 is covered on top of the uppermost lattice-like frames 4, 4, .

Further, in the tank section 2, a side gutter 7 leading from a residential area etc. is connected to the side wall section 2a, and an outlet 8 connected to a river is connected at a slightly lower position.

In this example, since the configuration is as described above,
Although it is simple and inexpensive, it sufficiently functions to store and infiltrate rainwater as described below.

The above-mentioned storage and infiltration tanks are installed around residential areas, factories, etc., as described above.

Then, rainwater in residential areas, etc. will flow into the side gutters 7 and other drainage ditch facilities, and through these, will flow into the tank section 2. Since the tank section 2 is filled with the grid-like frames 4, 4, . In addition, the lattice-like frames 4, 4... filled in the tank section 2 are as follows:
The upper and lower sections are in open communication with each other through the partitions 5, 5..., and the lattice-like frames 4, 4... are not in close contact with each other, so rainwater, etc. can move freely. Further, since the lattice-like frames 4, 4, etc. as described above are filled, the space ratio inside the tank portion 2 is extremely high. Thus, a sufficient amount of rainwater can be stored.
Further, since the side wall portion 2a and bottom portion 2b of the tank portion 2 have exposed soil and are not covered with concrete or the like, rainwater and the like gradually permeate into the ground as time passes.

However, even if there is a torrential downpour, the rainwater will flow into the tank 2 through the side gutters 7, etc., and temporarily remain in the tank 2 and store it on roads and residential areas. It works in accordance with the natural cycle of preventing damage to the surrounding area, and in the long run, allows rainwater to seep into the ground.

Moreover, in this structure, the tank portion 2 dug into the ground 1 is filled with lattice-like frames 4, 4... as described above, stacked on top of each other, and covered with a covering layer 6 made of gravel or soil. It is also something that can be created easily and inexpensively. Furthermore, since the interior is filled with lattice-like frames 4, 4, etc., it has sufficient strength.

Furthermore, as mentioned earlier, rainwater, etc. is stored in the tank section 2.
Due to the favorable phenomenon of seepage into the ground through the side wall 2a and bottom 2b, overflow is less likely to occur, unlike ordinary drainage equipment.
Even the outflow of rainwater from outlet 8 is small.

FIGS. 3 and 4 show members of other embodiments to replace the lattice frame 4 to be filled into the tank portion 2. FIG.

Figure 3 shows nine planar hexagonal sections 15, 15...
This figure shows a compartment frame 14 that is connected vertically and horizontally.
It can be used in the same manner as the lattice-like frame 4 of the above embodiment, and the same effects can be obtained.

FIG. 4 shows a compartment frame 24 in which nine planar circular compartments 25, 25, . can.

[Effects of the Invention] According to the present invention, with a simple configuration that is easy to construct,
Temporarily, it is possible to sufficiently store natural water such as rainwater, and in the slightly longer term, it is possible to allow rainwater to permeate underground. This not only creates a time lag in the discharge of rainwater into rivers, etc., but also reduces or eliminates this.

[Brief explanation of drawings]

The drawings illustrate embodiments of the invention. Figures 1 and 2 show one embodiment.
The figure is a schematic sectional explanatory view thereof, and FIG. 2 is an enlarged perspective view of the lattice-like frame. FIG. 3 is a schematic plan view showing another embodiment of the compartment frame body which can replace the lattice frame body to be filled in the tank, and FIG. It is a schematic plan view which showed the division frame of another Example. DESCRIPTION OF SYMBOLS 1... Ground, 2... Tank part, 2a... Side wall part, 2b... Bottom part, 3... Gravel layer, 4... Grid frame, 5, 15, 25... Division, 6... Covering layer ,
7... Side gutter, 8... Outlet, 9... Plastic sheet, 14, 24... Compartment frame body.

Claims (1)

[Scope of Claims] 1. A tank section is constructed by digging into the ground, and compartment frames partitioned into a plurality of compartments are arranged vertically and horizontally and vertically in the tank section from the bottom to the vicinity of the ground line to fill the tank. , a storage infiltration tank for rainwater, etc., characterized in that the top part is covered with a covering means. 2. A storage and permeation tank for rainwater, etc. according to claim 1, characterized in that the covering means is a gravel layer.