A method to enhance the water seepage performance of urban gentle slope permeable pavement

A permeable pavement and gentle slope technology, applied to roads, roads, pavement details, etc., can solve the problems of reduced soil infiltration in gentle slope areas, low soil infiltration rate in the lower layer, weakened permeable pavement materials and technologies, etc., to achieve a lower surface The effect of runoff, simple operation, and small amount of work

Active Publication Date: 2018-08-03
天津泰达园林规划设计院有限公司
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Problems solved by technology

The process of permeable pavement, pavement pressure and settlement will cause the lower soil layer to be compacted, resulting in a lower infiltration rate of the lower soil layer, and the slope of the gentle slope area will make the water infiltrated into the lower soil layer flow down the slope. This reduces the soil infiltration in the gentle slope area, thereby reducing the overall water infiltration capacity of the permeable pavement area, and weakening the function of permeable pavement materials and technologies in the sponge city system

Method used

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  • A method to enhance the water seepage performance of urban gentle slope permeable pavement

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Embodiment 1

[0035] An operation method for enhancing the water seepage performance of urban gentle slope permeable pavement, comprising the following steps:

[0036] (1) Micro-topography adjustment in the gentle slope area: Micro-topography adjustment is carried out in the permeable pavement area with pre-paved concrete, permeable bricks and other structures to form a shallow-bottomed horizontal intercepting ditch 4 with a depth of 5 cm, a bottom width of 5 cm, and a distance of 5 m;

[0037] (2) Perforation on the road surface: perforating in the horizontal intercepting ditch 4, the hole spacing is 1m, the diameter of perforating is 5cm, and the perforating depth is 1m;

[0038] (3) Pore filling: Fill with hard and porous granular material 3 to form a supported vertical infiltration pore channel, preferably biochar granular material; biochar granular material is hard agricultural and forestry waste such as tree branches and corn cobs Biochar is produced by cracking at 400°C under anoxic ...

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Abstract

The invention relates to a method for enhancing the water permeability of a permeable pavement of an urban gentle slope. The method comprises the following steps: (1) before the permeable pavement is paved on an urban gentle slope region, carrying out micro-terrain tidying to form an interception ditch in a horizontal direction; (2) perforating in the interception ditch; (3) adding hard porous granular materials in the formed holes, and gently pressing to enable the granular materials to be steady; and (4) carrying out routine permeable pavement paving operation. The method provided by the invention has wide market prospects and can be widely applied to construction of urban hard pavements, such as urban square green areas, residential region green areas, road green areas, forest parks and the like.

Description

technical field [0001] The invention relates to the technical field of urban pavement engineering, in particular to a method for enhancing the water seepage performance of urban gentle slope permeable pavement. Background technique [0002] In recent years, the state has proposed and advocated the construction concept of "sponge city", which plans to maximize the accumulation, infiltration and purification of rainwater in urban areas under the premise of ensuring the safety of urban drainage and waterlogging through the combination of natural means and artificial measures. Promote the utilization of urban rainwater resources and the protection of urban ecological environment, while mitigating urban waterlogging, groundwater decline and other hazards. [0003] Permeable pavement can effectively increase the area of ​​rainfall infiltration in urban areas, increase rainfall infiltration and reduce surface runoff by promoting the infiltration of rainfall on the pavement surface....

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01C11/22
CPCE01C11/225Y02A30/60
Inventor 刘祥宏王振宇张清赵秀芳张凯
Owner 天津泰达园林规划设计院有限公司
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