KR20100042694A - Saturation facilities of rainwater for slope - Google Patents

Abstract

PURPOSE: A rainwater infiltration facility for a slope is provided to prevent water from being stagnated by efficiently absorbing rainwater, and to minimize flooding by storing the rainwater. CONSTITUTION: A rainwater infiltration facility for a slope comprises a permeable pavement surface(100), a rubble layer(103), and a rainwater storage part(119). The permeable pavement surface is placed on a slope. The rubble layer is formed in the bottom of the permeable pavement surface. The rainwater storage part is composed of permeable blocks, and stores rainwater.

Description

Saturation facilities of rainwater for slope}

The present invention relates to a rainwater infiltration facility of a steep slope, and more particularly, to an environment-friendly infiltration facility having a high permeability rate and a space for storing rainwater in a steep slope to minimize the worry of low water fluctuations during rainy weather. will be.

Rain in the forest slowly penetrates into the sedimentary soil and flows into the sea, creating a stream of stable streams. If rainwater penetrates into land other than forests, it will follow the same route. This slow circulation of water keeps the purification of nature and provides abundant hydrophilic space for all living things. However, in recent years, forests have been harvested by golf courses, ski resorts, mountainous land developments, and so on. In urban areas, roads occupy 10 to 15% of the earth's surface, and roads have a high impermeability due to asphalt and concrete pavement. The arrival time to the back is quick. This tends to cause dryness of roadsides or deepening of heat islands due to the lack of groundwater in urban areas, while water bottlenecks occur on slopes and low areas, causing damage to houses and roads. There is concern about flood damage.

In addition, when the river level rises, the exclusion rate tends to be lowered and the low-lying residential areas tend to be flooded within a short time. I'm doing it.

As to solve the above problems,

An object of the present invention is to provide a means for preventing problems such as collective inflow into sewage pipes and rain water splash of pedestrians that can occur on the slope during heavy rains.

It is also an object of the present invention to provide a means for minimizing the rate of rainwater entering the lowland by improving the absorption rate of the rainwater and improve the storage capacity of the water.

The present invention is to solve the above problems, a rubble layer formed to form an inclined surface on the ground; A permeable pavement surface paved with a permeable block along an inclined surface formed by the rubble layer; And a closed space constructed by a permeation block, the rainwater storage unit buried in the ground so that an upper surface thereof is in contact with the lower surface of the rubble layer. Provides rainwater infiltration facilities of the slopes, including.

The rainwater penetration facility includes a sand laying layer formed between the rubble layer and the permeable pavement to filter rainwater and maintain the smoothness of the permeation block; And a nonwoven fabric layer disposed below the sand laying layer to protect the sand laying layer. This may be configured to include more.

In addition, a permeation panel for covering the circumference of the rain water storage; It further comprises a, or overflow pipe for discharging rainwater from the rainwater storage to the sewage pipe; It can be configured to include more.

On the other hand, the permeable block is the permeable block can be produced by mixing the non-plastic clay composition and aggregate in a weight ratio 1: 3-7.

From the structural features of the present invention described above,

The present invention is to prevent the city flood because it can control the rainwater flowing into the sewage pipe in sequence during heavy rains.

In addition, the present invention maintains the groundwater level because the rainwater penetrates into the ground rather than sewage pipe.

In addition, the present invention can solve the inconvenience, such as rain water splash of pedestrians because the rainwater as it penetrates the basement when a lot of rain through the permeable pavement.

In addition, since rainwater from the sidewalks is penetrated into the basement and purified, it can be prevented from being contaminated by flowing into the river through sewage pipes.

In other words, the present invention efficiently absorbs rainwater in rainy weather to prevent water from pooling, prevents rainwater from flowing quickly along low slopes, and improves the storage capacity of rainwater, causing damage such as flooding and flooding. Minimize your work.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. Unless otherwise defined or mentioned, terms indicating directions such as 'up, down, left and right' used in the present description are based on the states indicated in the drawings.

Rainwater infiltration facility of the slope according to the present invention is a rubble layer 103 formed on the bottom of the permeable pavement 100 and the water-permeable pavement 100 is largely packaged on the inclined surface as shown in FIG. And, the rainwater storage unit 119 that can be constructed by a pitcher block to store rainwater is the main configuration.

With reference to FIG. 1 and FIG. 4, the permeable pavement surface 100 is demonstrated.

As shown in FIG. 4, the non-woven fabric 102a and the smooth sand 102b are laid on the rubble layer 103 which forms the slope and demolishes the existing asphalt or concrete, and is then paved using a permeable block. As a result, the water-permeable pavement surface 100 is formed.

The inventors of the present invention carried out an experiment to analyze the existing concrete or asphalt pavement surface, and the water-permeable pavement surface packed with a permeation block including a front pitcher and a gap pitcher in terms of precipitation flow rate. That is, the following is an experiment on how slow the rainwater inflow rate into the lowland as compared to the conventional concrete or asphalt pavement surface can be prepared for a disaster, etc. according to the present embodiment.

<Experimental conditions>

The experiment was carried out with the permeable pavement and the existing concrete pavement as a control.

Permeable pavement surface is laid on the top of the rubble layer formed to maintain the inclination slope of 10 degrees non-woven fabric for the purpose of protecting the sand laying layer to be described later, sand for about 3Cm for the purpose of maintaining block smoothness, 3 ~ 5mm size A permeable block having a thickness of 8 cm formed from aggregate particles was used. The permeability coefficient inside the permeation block is 8.6 ㅧ 10 ^-2 cm / sec (showing a permeability coefficient of 8.6 times that of the existing permeation block).

The concrete pavement surface, which is the control, maintained a slope of 10 degrees and cast 11cm of concrete on the rubble layer, and the design reference strength was 21MPa.

In 10 seconds, 6 liters of water was continuously injected into the inclined top surface, and the time to reach the target distance of 6 m according to the inflow of water was measured. The results are shown in the following reference table.

[Table 1; Reach time on concrete pavement surface]

Experiment 6m Distance Reach (Sec) One 19 2 21 3 20

That is, it took 20 seconds for the 6m average reach time for the concrete pavement surface, and the average speed was 30Cm / sec, which took 5 minutes and 33 seconds for 100m.

[Reference Table 2; Reach time on permeable pavement]

Experiment 6m Distance Reach (Sec) One 480 2 500 3 460

According to the above [Reference Table 2], the 6m distance to the permeable pavement took an average of 480 seconds (8 minutes) and the 100m distance to reach 2 hours 13 minutes is expected.

 That is, in the case of permeable pavement surface, water penetrates into the continuous voids in the permeation block or penetrates through the gap so that resistance by block and sand occurs and delays the flow time so that the flow rate is 1.25cm / sec on average It is 20 times slower than that.

A rainwater storage unit 119 will be described with reference to FIGS. 1 to 3. The rainwater storage unit 119 is a sealed space constructed by the permeation block, and is a structure installed in the ground so that the upper surface is in contact with the lower surface of the rubble layer. The circumference of the rainwater storage unit 119 may be covered with a permeable panel, which will be described below based on the specific embodiments indicated in FIG. 1.

Rainwater storage unit 119 shown in the embodiment of [Fig. 1] is a lower support fixed to the ground and the upper support for supporting the rubble layer of the upper and the connecting support for interposed between the upper and lower supports are both pitched It is built in blocks. Accordingly, the rainwater space portion 119 is formed in a quadrangular shape as shown in the plan view of FIG. 2.

In addition, the rainwater storage unit 119, the first permeation panel is provided in the circumferential direction and the vertical direction of the inclined ground to form a boundary between the ground and rubble layer, the first permeation panel and the low permeability than the first permeation panel Second and second permeable panels provided in parallel, and third and fourth permeable panels for connecting the first and second permeable panels are provided at both ends in the circumferential direction of the first and second permeable panels. That is, the first to fourth permeable panels 101 (101a and 101b) are provided in a hexahedral shape with open top and bottom.

The first permeable panel 101a is installed in a low zone of an inclined ground to form a boundary between the ground 10 and the rubble layer 103 and the rainwater storage unit 119. Thereafter, the second to fourth permeable panels 101 are installed as described above, and then the rainwater storage unit 119 is constructed using a permeation block having a porosity of 25% or more. Thereafter, the rubble layer is laid on the rainwater storage unit 119, and the nonwoven fabric layer 102b and the smooth sand laying layer 102a are constructed as described above, and the permeable pavement surface 100 is constructed as a permeation block. .

 In this case, the rainwater storage unit 119 may further include an overflow pipe 121 connected to the sewer pipe 120. Accordingly, after the rainwater is pitched underground through the permeable pavement surface 100, the rainwater may be stored up to the capacity of the rainwater storage unit 119 and introduced into the sewage pipe 120 through the overflow pipe 121.

On the other hand, the permeable block is formed with micropores to allow water to permeate, the permeable block 110 is made by mixing the powder and aggregate in a weight ratio 1: 3-7, the powder is a non-plastic clay composition Alternatively, cement powder may be applied. The cement powder is in a general sense, and the non-fired clay composition is introduced in Korean Patent No. 10-0348688. The non-fired clay composition is 50 to 90 wt% of clay, 2 to 30 wt% of lime, 4 to 48 wt% of blast furnace slag, 0.04 to 0.9 wt% of alkaline agent, and remaining water. , KOH, slaked lime (Ca (OH) 2), CaSO4, CaCl2, NaCl, alum (alumite), water glass (sodium silicate) may be selected by adding one or more selected. The non-plastic clay composition has a high compressive strength by ionic agglomeration reaction, pozzolanic reaction, and latent hydraulic reaction without calcining clay, and does not need to perform a high temperature firing process, thus shortening the production work process. In addition, the cost is reduced, and the energy waste caused by manufacturing and harmful emissions to the air can be prevented in advance. In addition, the problem of soil or groundwater contamination is eliminated because there is no fear of harmful substances generated in general concrete products. In the present invention, such a non-plastic clay composition and aggregate may be applied to a permeable block prepared by blending a weight ratio of 1: 3 to 7. As the aggregate, a discontinuous particle size aggregate having a diameter of 3 to 7 mm, 7 to 13 mm, and 13 to 25 mm can be used. The above perception block can be applied to the permeation panel.

Although preferred embodiments of the present invention have been described above, the technical spirit of the present invention is not limited to the above-described preferred embodiments, and rainwater of various steep slopes in a range not departing from the technical spirit of the present invention specified in the claims. It can be implemented as an infiltration facility.

1 is a cross-sectional view showing the overall appearance of the slope rainwater penetration facility according to the present invention.

2 is a cross-sectional view showing a state of the rainwater storage unit according to the present invention.

3 is a plan view showing the state of the rainwater storage unit according to the present invention.

4 is a cross-sectional view showing the appearance of the water-permeable pavement surface according to the present invention.

<Description of the symbols for the main parts of the drawings>

10: ground 100: permeable pavement

101: permeable panel 102a: sand sand layer

102b: nonwoven fabric layer 103: rubble layer

104: pitcher panel fixing member 110: pitcher block

119: rainwater storage unit 120: sewage pipe

121: overflow tube

Claims (5)

Rubble layer 103 formed to form an inclined surface on the ground (10); A permeable pavement surface 100 paved with a permeation block 110 along an inclined surface formed by the rubble layer 103; And A sealed space constructed by the permeation block 110, a rainwater storage unit 119 installed in the ground 10 so that an upper surface thereof is in contact with the lower surface of the rubble layer 103; Rainwater infiltration facilities of the slope is configured to include. The method of claim 1, A sand laying layer (102a) formed between the rubble layer (103) and the permeable pavement (100) for rainwater filtering and maintaining the smoothness of the permeation block; And A nonwoven fabric layer 102b disposed below the sand laying layer 102a to protect the sand laying layer 102a; It further comprises a rainwater infiltration facility of the slope. The method of claim 1, A permeation panel 101 covering a circumference of the rainwater storage unit 119; Rainwater penetrating facilities of the slopes further comprises. The method of claim 1, An overflow pipe 121 for discharging rainwater from the rainwater storage unit 119 to the sewage pipe 120; Rainwater penetrating facilities of the slopes further comprises. The method according to any one of claims 1 to 4, The water permeable block 110 is produced by mixing the powder and aggregate in a weight ratio of 1: 3-7, the powder is a rainwater infiltration facility, characterized in that the non-plastic clay composition or cement powder.

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