Water-permeable paving material and using method thereof

A technology of permeable pavement and permeable concrete, which is applied in water supply devices, cement mixing devices, other household appliances, etc., can solve the problems of sewer blockage, traffic impact, accumulation and impurity residues, etc., to improve bond strength and prevent water flow. Erosion, regrow-friendly effect

Inactive Publication Date: 2020-09-18
HUNAN INSTITUTE OF ENGINEERING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] (1) The upper part of the shoulder of embankment is directly filled with soil. As time goes by, the root system of plants becomes more and more developed, and there will be accumulations and impurities on the shoulder of the embankment, which will cause the shoulder of the embankment to be higher than the road surface, resulting in road area. water
[0007] (2) Concrete hardening is used to cultivate road shoulders. Because there is no filtering by plants, the sewage will all flow to the side ditches of the embankment, resulting in the accumulation of debris on the road and affecting traffic.
[0008] (3) The traditional masonry rubble diversion ditch used in the expressway does not have the effect of intercepting and filtering the sewage, which leads to the blockage of the sewer

Method used

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  • Water-permeable paving material and using method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0063] Embodiment 1: The use of ecological concrete in the road shoulder of expressway

[0064] Such as Figure 5 As shown, the use of ecological concrete in the road shoulder of the expressway specifically includes:

[0065] 1) Lay permeable concrete on the road shoulder of the expressway and plant soil vegetation to form a 75cm planted concrete;

[0066] 2) Lay stepped PE anti-seepage cloth, unscreened gravel drainage layer, and permeable geotextile in sequence under the expressway shoulder. The PE anti-seepage cloth 3 is covered with an unscreened gravel drainage layer 1, and the unscreened gravel drainage layer 1 is covered with a permeable geotextile 2, and the surface of the permeable geotextile is covered with a permeable concrete 5, and the permeable concrete 5 is covered Planted soil vegetation 6.

[0067] Each step of the stepped PE anti-seepage cloth has a width of 15cm and a height of 18cm; the unscreened gravel drainage layer is divided into two parts: inclined...

Embodiment 2

[0071] Example 2: The use of ecological concrete in the drainage ditch of the expressway

[0072] The cross-section of the ecological side ditch is trapezoidal or triangular, and the bottom of the ditch is made of permeable concrete and grass seeds are sown.

[0073] Such as Figure 6 As shown in (a), the section of the ecological gutter adopts a trapezoidal form, the width of the trapezoidal bottom is 80cm, and the width of both sides is 50cm; the thickness of the planting concrete at the bottom is 20cm, and the internal width of the ecological gutter is 40-60cm.

[0074] Such as Figure 6 As shown in (b), the section of the ecological side ditch is in the form of a triangle, and the width of the triangle bottom is 40cm, 100cm, 40cm; the thickness of the planting concrete at the bottom is 20cm, and the internal width of the ecological side ditch is 40-60cm.

[0075] The open ditch with turf planted in the present invention can prevent water erosion and biological filtration...

Embodiment 3

[0077] Example 3: The use of ecological concrete in constructed wetlands

[0078] The bottom of the artificial wetland is paved with permeable concrete.

[0079] Through the analysis of the sewage purification mechanism of constructed wetlands, it can be known that the most important thing is the good growth of aquatic plants. Constructed wetlands purify sewage mainly through artificial substrates, aquatic plants and microorganisms. The traditional sedimentation tank does not have a good carrier for the survival of aquatic plants and microorganisms. The bottom of the constructed wetland is paved with permeable concrete, and its ecological membrane can act as an artificial substrate to provide a stable attachment surface for the growth of microorganisms. Permeable concrete has large pores, can store water and sediment, and can provide carriers and nutrients for aquatic plants, so that aquatic plants and microorganisms can absorb and utilize nutrients in sewage, absorb and atta...

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Abstract

The invention belongs to the technical field of ecological ditch and constructed wetland treatment, and discloses a water-permeable paving material and a using method thereof. The use method of the ecological concrete in the expressway cultivation shoulder comprises the following steps: paving pervious concrete on the expressway cultivation shoulder, planting hilling vegetation to jointly form vegetation concrete, and sequentially paving the PE impermeable cloth, the unscreened gravel drainage layer and the pervious geotextile below the expressway cultivation shoulder; the application method of the ecological concrete in the expressway gutter is as follows: the section form of the ecological side gutter is trapezoidal or triangular, the bottom of the gutter is made of pervious concrete, and grass seeds are sown; the use method of the ecological concrete in the constructed wetland comprises the step of paving the bottom of the constructed wetland with the pervious concrete. According tothe invention, due to the vegetation concrete ecological filtration is achieved and a drainage function is realized; therefore, the road surface runoff sewage treatment device has the effects of preventing water flow scouring and biofiltration, can intercept and filter road surface runoff sewage, and can afforest and beautify the road environment at the same time.

Description

technical field [0001] The invention belongs to the technical field of ecological ditch and artificial wetland treatment, and in particular relates to a permeable pavement material and a using method thereof. Background technique [0002] Currently, the closest prior art: [0003] The comprehensive treatment measures of ecological ditches combined with sedimentation tanks and constructed wetlands have a good effect on the treatment of highway sewage. It is a sewage treatment method that integrates environmental, economic and social benefits. Ecological ditches and constructed wetlands mainly use aquatic plants to intercept and absorb harmful and toxic substances in road runoff, thereby absorbing and degrading sewage. In the previous expressway design, the upper part of embankment embankment embankment was mostly directly filled with soil, and shallow vegetation will gradually grow on embankment embankment shoulder, and these plants can partially intercept and filter. Howeve...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01C11/22E03F5/04E02B3/00B28B1/04B28C5/00C04B28/04C04B38/00A01G20/00A01G22/00A01G31/00
CPCA01G31/00A01G20/00A01G22/00B28B1/04B28C5/003C04B28/04C04B2111/00284C04B2111/0075E01C11/221E01C11/227E02B3/00E03F5/0401C04B14/00C04B24/36C04B2103/0045C04B38/0041Y02A10/30
Inventor 刘兆丰
Owner HUNAN INSTITUTE OF ENGINEERING
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