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Method for strengthening water seepage performance of city porous pavement

A technology for permeable pavement and city, applied in the direction of roads, roads, pavement details, etc., can solve problems such as reducing the overall water infiltration capacity of permeable pavement areas, low infiltration rate of lower soil, weakening permeable pavement materials and technologies, etc. The effect of small engineering volume, improving infiltration capacity and reducing surface runoff

Inactive Publication Date: 2016-03-23
天津泰达盐碱地绿化研究中心有限公司
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Problems solved by technology

The process of permeable pavement, as well as the trampling and settlement of the pavement, will cause the underlying soil layer to be compacted, resulting in a lower infiltration rate of the underlying soil, which in turn reduces the overall water infiltration capacity of the permeable pavement area and weakens the permeable pavement materials and technologies. The function of the sponge city system

Method used

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Experimental program
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Effect test

Embodiment 1

[0029] An operation method for enhancing the water seepage performance of urban permeable pavement, comprising the following steps:

[0030] (1) Pavement drilling: In the pre-paved permeable pavement area (concrete structure pavement, permeable brick structure pavement), perforate at a density of 1m*1m, the diameter of the perforation is 5cm, and the depth of the perforation is 1m. Drilling should be done after the initial cleaning of pavement, and before operations such as sand spreading, compaction, and brick laying;

[0031] (2) Holes are filled with biochar granular materials, which are used to form supported vertical infiltration pore channels. The biochar granular materials are hard agricultural and forestry wastes such as branches and corn cobs, which are cracked under the condition of anoxic and 400 ° C, and Grinding to a diameter of <1cm, prepared. During the filling process, the filler is lightly compacted to ensure the stability of the hole structure and pavement s...

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Abstract

The invention relates to a method for strengthening water seepage performance of a city porous pavement. The method includes the following steps: (1) holes are punched according to a certain density before paving construction of the city porous pavement is carried out; (2) hard and porous granular materials are added into the punched holes, and slight pressing is carried out to guarantee stability; and (3) conventional porous pavement paving operation is carried out. The method has a wide market prospect, and can be widely used for city hard pavement construction such as urban square greenbelts, housing estate greenbelts, road greenbelts and forest parks.

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 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 channels 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. At prese...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01C3/06
CPCE01C3/06E01C11/225
Inventor 刘祥宏王振宇张清赵秀芳杨永利
Owner 天津泰达盐碱地绿化研究中心有限公司
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