Ecotype road surface for sponge city

A kind of sponge city and ecological technology, which is applied to the condensing pavement paved on site, roads, roads and other directions, can solve the problems of rainwater pollution, pollution of urban river drinking water sources, and impact on sustainable utilization of urban water resources, etc., to achieve Improve comfort and reduce dust

Inactive Publication Date: 2018-11-20
福建闽泰交通工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The above existing technologies can realize the rapid infiltration of rainwater and effectively prevent the occurrence of urban waterlogging, but they have ignored the problem of rainwater pollution in the initial stage of the road. Rainwater directly enters the urban groundwater circulation system, thereby polluting urban rivers and drinking water sources. Sustainable Utilization of Urban Water Resources

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] An ecological road surface for a sponge city, comprising a water-permeable self-purification road surface and a sunken ecological purification belt, the sunken ecological purification belt is located on one or both sides of the water-permeable self-purification road surface, and the water-permeable self-purification road surface It is separated from the sunken ecological purification belt by curbstones.

[0033] The permeable self-cleaning pavement comprises a roadbed, a subbase with a thickness of 150 mm, a drainage base with a thickness of 200 mm and a self-cleaning surface with a thickness of 120 mm from bottom to top, and the subbase uses lime fly ash stabilized soil aggregates, The drainage base layer adopts graded gravel with a particle size of 26.5mm, and the wearing layer of the self-cleaning surface layer adopts a large-gap open gradation drainage type OGFC asphalt mixture, and the OGFC asphalt mixture contains a particle size of 20nm TiO 2 and diatomaceous ea...

Embodiment 2

[0040] An ecological road surface for a sponge city, comprising a water-permeable self-purification road surface and a sunken ecological purification belt, the sunken ecological purification belt is located on one or both sides of the water-permeable self-purification road surface, and the water-permeable self-purification road surface It is separated from the sunken ecological purification belt by curbstones.

[0041] The permeable self-cleaning pavement comprises a roadbed, a subbase with a thickness of 250mm, a drainage base with a thickness of 350mm and a self-cleaning surface with a thickness of 150mm from bottom to top, and the subbase uses lime fly ash stabilized soil aggregates, The drainage base layer adopts graded gravel with a particle size of 31.5mm, and the wear layer of the self-cleaning surface layer adopts a large-gap open gradation drainage type OGFC asphalt mixture, and the OGFC asphalt mixture contains a particle size of 40nm TiO 2 and diatomaceous earth wi...

Embodiment 3

[0048] An ecological road surface for a sponge city, comprising a water-permeable self-purification road surface and a sunken ecological purification belt, the sunken ecological purification belt is located on one or both sides of the water-permeable self-purification road surface, and the water-permeable self-purification road surface It is separated from the sunken ecological purification belt by curbstones.

[0049] The permeable self-cleaning pavement comprises a roadbed, a subbase with a thickness of 200mm, a drainage base with a thickness of 300mm and a self-cleaning surface with a thickness of 130mm from bottom to top, and the subbase uses lime fly ash stabilized soil aggregates, The drainage base layer adopts graded gravel with a particle size of 28mm, and the wear layer of the self-cleaning surface layer adopts a large-gap open gradation drainage type OGFC asphalt mixture, and the OGFC asphalt mixture contains a particle size of 30nm TiO 2 and diatomaceous earth with...

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PUM

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Abstract

The invention discloses an ecotype road surface for a sponge city. The ecotype road surface comprises a water permeable self-cleaning road surface and a sinking type ecological purifying belt, the sinking type ecological purifying belt is located on one side or two sides of the water permeable self-cleaning road surface, the water permeable self-cleaning road surface and the sinking type ecological purifying belt are separated by a kerb, the water permeable self-cleaning road surface comprises a roadbed, a subbottom layer, a drainage base layer and a self-cleaning surface layer from bottom totop, and the sinking type ecological purifying belt comprises a water storage layer, an initial rainwater filtering layer and a water storage tank. The ecotype road surface has the beneficial effectsthat the initial rainwater pollution of the city road is eliminated, the structure of the road surface is stable, the scope of application is wide, meanwhile, the urban inland inundation is alleviated, the water is conserved, the air humidity is regulated, the flying dust is reduced, and the air quality is improved.

Description

technical field [0001] The invention belongs to the technical field of water environment ecological restoration engineering, and relates to an ecological road surface used for a sponge city. Background technique [0002] Sponge city, that is, the city can be like a sponge, with good "elasticity" in adapting to environmental changes and responding to natural disasters. In the process of rainfall, rainwater can be accumulated through absorption, storage, infiltration and purification. When needed, the stored water is released to irrigate, flush urban roads and supplement urban groundwater, etc. Sponge cities can improve the functions of urban ecosystems and reduce the occurrence of urban floods. [0003] Initial rainwater refers to the runoff formed by 12.5 mm rainfall before the start of surface runoff from rainfall. The initial rainwater contains a lot of pollutants, some pollutants (such as BOD 5 ) concentration is similar to the influent water quality of urban sewage pla...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01C1/00E01C11/22E01C7/32E03F5/10E03F5/14
CPCE01C1/002E01C7/32E01C11/222E01C11/226E03F5/103E03F5/14
Inventor 杨志勇陈春洪张文贵林志宾
Owner 福建闽泰交通工程有限公司
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