A pavement system for preventing waterlogging and replenishing groundwater

Abstract

The invention discloses a pavement system for preventing waterlogging and supplying underground water. The pavement system comprises a roadbed, a base layer and a road surface from bottom to top, wherein the road surface is the water permeable road surface formed by paving an open-graded asphalt mixture; the roadbed is the water permeable base layer formed by paving a flexible material or a water impermeable base layer formed by paving a semi-rigid material, and if the water permeable base layer is adopted, a water impermeable layer is paved between the roadbed and the base layer; the road surface is divided into a traffic lane and a sidewalk; the sidewalk is positioned on the outer side of the traffic lane; a drainage ditch is arranged on the edge of the traffic lane; a water storage tank is arranged below the drainage ditch; a water drainage pipe is arranged on the outer side of the water storage tank; a seepage ditch is arranged on the lower side of the water storage tank; the water drainage pipe is used for communicating an urban drainage system; the seepage ditch is directly communicated with deep underground water. According to the system for preventing waterlogging, collecting rain water and supplying underground water, the problems that at present, cities are suffered from waterlogging due to sudden heavy rain in the rainy season, and only water drainage measures are adopted, which cause underground water insufficiency in the cities can be solved.

Description

technical field [0001] The invention relates to pavement drainage and water storage technology, in particular to a pavement system for preventing internal waterlogging and replenishing groundwater. The system can help prevent urban waterlogging and replenish groundwater with rainwater in seasons with sufficient rainwater. Background technique [0002] At present, the road surfaces of modern cities are covered by reinforced concrete buildings and impermeable pavement, which leads to an increase in urban rainfall surface runoff. The initial rainwater of surface pollutants and the pollutants deposited in the sewage pipe network flow into rivers and lakes in a short period of time without any treatment, causing serious pollution to these water bodies. At the same time, some inland cities face water shortages during the non-rainy season, and have to pump groundwater to supplement urban water use, which has caused great damage to the groundwater system and even the entire ecosyste...

AI Technical Summary

Problems solved by technology

Existing pavement systems are mostly designed from the perspective of drainage, and have not completed the steps of water storage, water seepage, water purification, and water use, which is not conducive to the utilization of rainwater resources and the protection of the ecological environment

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