JPH0111823Y2 - - Google Patents

Description

[Detailed description of the invention] <Industrial application field> The present invention relates to the structure of a seepage well that allows rainwater to infiltrate underground.

<Conventional Technology> Our country is blessed with water resources due to its relatively large amount of rainfall, but as the population has increased and industry has developed in recent years, water shortage problems have arisen in cities around the country. In general, rivers in Japan have relatively steep slopes and short channel lengths, so the peak of rainwater and the peak of river water are close to each other, and the amount of water discharged is overwhelmingly greater than the amount of water taken in, making it difficult to reuse. It is becoming a disadvantage.

Recently, as shown in Japanese Utility Model Application Publication No. 50-92562, a water treatment system has also been developed that consists of simply burying cement pipes with multiple drainage holes vertically in the soil. However, since the bottom of this device is open, it cannot absorb the load of the road surface on which cars pass, and dirt and sand from the ground may enter through the open portion, significantly reducing the depth of the cement pipe. In addition, the water flow hole may become clogged, making it unusable in a short period of time.Furthermore, with this technology, internal maintenance cannot be carried out as necessary, so it may become unusable in a short period of time. However, there were disadvantages such as loss of penetration function.

<Problems to be solved by the invention> This invention is a completely new technology developed in view of these drawbacks of the conventional technology. It also prevents dirt, etc. from entering the body from the bottom of the body, while also allowing rainwater inside the body to smoothly permeate into the soil, and sufficiently absorbing the load of the road surface. It can be easily assembled and configured on site, and internal maintenance can be carried out as necessary, thereby preventing the infiltration function from deteriorating over a long period of time. The aim is to provide a completely new permeation well structure.

<Means for Solving the Problems> The present invention consists of sequentially stacking a plurality of humid pipes each having several permeable holes 10 having a large cross-sectional area, and providing a bottom plate having permeable holes 10 at the bottom of the pipes to form a permeable well. A lifting step 9 is attached to the inner peripheral surface of the permeation well body 6, and a permeation wall 11 is formed by piling up crushed stones 12 along the outer periphery of the permeation well body 6, and a filter 13 is attached to and removed from the permeation hole 10. A rainwater basin 1 and a rainwater manhole 2 are inserted freely into the seepage well body 6 through pipes 3, 5, and 7.
This is a permeation well structure characterized by being constructed by sequentially connecting a manhole 4 for sedimentation and a manhole 4 for sedimentation.

<Function> As mentioned above, the infiltration well structure according to the present invention can be used as a rainwater basin, a rainwater manhole, a sedimentation manhole,
Since the main bodies of the seepage wells are connected in a certain order by pipes, it is possible to remove soil, fine clay, etc. mixed in with the rainwater by settling it into these manholes before the rainwater flows into the main body of the seepage wells. The main body of the seepage well is provided with a bottom plate and a permeable hole closed with a filter is drilled in a part of the bottom plate, so that while the water in the main body of the seepage well is permeated into the soil, the sediment in the soil is In addition, steps are provided inside the permeation well body for raising and lowering the permeation well, and all permeation holes in the wall are equipped with filters. The interior of the seepage well body can be maintained in accordance with the situation, thereby preventing the function of the seepage well body from deteriorating over a long period of time.

<Example> To specifically explain one embodiment of the present invention with reference to figures, in Figs. A manhole for rainwater connected to the cell 1, 4 a manhole for sedimentation connected to the manhole 2 via a pipe 5, and 6 a seepage well body connected to the manhole 4 via a pipe 7. . These manholes 2, 4 and main body 6 are constructed by sequentially stacking humid pipes underground, and the upper end thereof has a height approximately equal to the ground surface GL,
An opening/closing lid 8 is attached to the upper edge, and a lifting step 9 is provided protruding from the vertical wall inside these lids.

Furthermore, as shown in the figure, each of the manholes 2 and 4 has an open bottom, while a bottom plate having a permeation hole 10 is attached to a part of the main body 6 of the seepage well.

In order to increase the retention time of the sediment sedimentation manhole 4 as much as possible, if the inner diameter is about 900 mm, the depth should be made deep to about 3000 mm, and if the inner diameter is about 1200 mm, the depth should be made relatively shallow to about 2000 mm. is possible, and the inner diameter of the permeation well body 6 is 900 to 1500.
mm, and the depth is preferably about 4,000 to 10,000 mm.
Reference numeral 10 indicates a large number of permeation holes drilled in the wall and bottom plate of the permeation well body 6, each having a cross-sectional area of 300 mm.
It is particularly large, measuring ~ ^700cm2 .
Reference numeral 11 denotes a permeation wall constructed by piling up crushed stones 12 with a constant width along the outer peripheral wall of the permeation well body 6. Reference numeral 13 denotes a filter that is removably inserted into the water permeation hole 10 and the bottom hole, and is constructed by filling a plastic filter grid 14 with a filter element 15 made of nonwoven fabric, etc., and is easy to replace and clean. It is possible.

As shown in FIGS. 3 and 4, the filter 13 in the above embodiment includes a main body 18 having a removable lattice 16 on the side surface and a flange 17 on the outer periphery;
The lid body 20 has a grid 19 on the side surface and can be fitted and fixed into a portion of the body 18. It is also possible to construct this by filling the above-mentioned elements.

<Effects of the invention> As mentioned above, the seepage well according to the invention collects rainwater,
The rainwater manhole, the sedimentation manhole, and the infiltration well body are connected in order through a pipe pipe, so that before the rainwater flows into the infiltration well body, soil, fine clay, etc. mixed in with the rainwater can be removed from the manhole. Sediment can be deposited at the bottom of the manhole and the seepage well body, and the sediment can be easily removed from the manhole opening by using steps etc. A water permeable hole with a large cross-sectional area is drilled in the wall surface and bottom plate of the humid pipe, and a filter is removably attached to this water permeable hole, so that rainwater flowing into the main body passes through the permeable wall and bottom plate and is efficiently distributed to the surrounding permeable ground. It can infiltrate well, and since the infiltration well itself is equipped with a bottom slab, it can sufficiently support the load of the road surface. Infiltration of the filter into the main body can be prevented, and filters that become clogged can be easily replaced or washed and regenerated, thus preventing a decline in penetration ability for an extremely long period of time. Moreover, since the manhole and the seepage well body are equipped with steps for lifting and lowering, maintenance inside the well can be carried out safely and easily.Moreover, since the well can be constructed with several fume pipes and bottom slabs, it can be carried out at a specified depth. It has the characteristics that things can be easily assembled and configured.

[Brief explanation of drawings]

Figure 1 is a cross-sectional explanatory diagram of the permeation well structure of the present application;
The figure is an enlarged view of the main part, and FIGS. 3 and 4 are explanatory views of other examples. 2, 4 are manholes, 3, 5, 7 are pipes, 6
is the permeation well body, 9 is the step, 10 is the permeation hole, 1
1 is a permeable wall, and 13 is a filter.

Claims (1)

[Scope of utility model registration request] The seepage well body 6 is constructed by sequentially stacking a plurality of humid pipes each having several permeable holes 10 with a large cross-sectional area, and providing a bottom plate having the permeable holes 10 at the bottom thereof.
A lifting step 9 is attached to the inner peripheral surface of the permeation well body 6, and a permeation wall 11 is formed by piling up crushed stones 12 along the outer periphery, and a filter 13 is detachably attached to the permeation hole 10. A seepage well structure characterized in that a rainwater basin 1, a rainwater manhole 2, and a sediment sedimentation manhole 4 are connected in order to the seepage well body 6 through fittings and pipe passages 3, 5, and 7.