Mountain rainwater sponge construction method preventing waterlogging

Abstract

The invention relates to a mountain rainwater sponge construction method preventing waterlogging. The method comprises the following steps that 1, energy dissipation ridges are arranged at the places,which are gullies of the rocky mountain, where flow of water in rocky mountain is rapid, and by means of the energy dissipation ridges, buffering and energy dissipating are conducted on rainwater; 2,plant buffer zones are arranged on the rocky mountain, by means of land planting vegetation on the surface of the rocky mountain, the rainwater is buffered, filtered and purified, and soil erosion isprevented; 3, wetlands and wet ponds are arranged on the rocky mountain, regulating lakes are arranged at the foot of the rocky mountain, and water interception ditches are circlewise arranged alongthe foot of the mountain; the water interception ditches, the wetlands and the wet ponds are communicated with regulating lakes separately, the wetlands and the wet ponds are communicated, and the wetlands, the wet ponds and the regulating lakes are communicated with an urban rainwater system or underground river water separately. Accordingly, most of the rainwater is stored through the wetlands,the wet ponds, the regulating lakes and the like, a large amount of rainwater can be prevented from flowing into a city, and urban waterlogging can be prevented.

Description

technical field [0001] The invention relates to a method for constructing a mountain rainwater sponge body for preventing waterlogging, in particular to a method for solving urban waterlogging in karst landforms by means of an urban sponge body. Background technique [0002] Cities with karst landforms have many mountains and little land, and the seepage of rainwater is large. The surface soil layer is thin and it is difficult to store water. The sponge city construction method of infiltration and water storage on the urban surface is not suitable for cities with karst landforms. How to improve the scale and quality of the urban "sponge body" is Practical problems faced by the construction of karst landform sponge city. "Stone Mountain Wetland Park" is to better borrow the natural characteristics of many stone mountains in the karst landform area, according to the urban stormwater management principle of "low-impact development rainwater system construction", artificially de...

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Problems solved by technology

At present, many urban roads in Liuzhou are undergoing renovation of permeable pavement for sidewalks. It is understood that 10,000 square meters of permeable pavement can store about 100 square meters of water. Ordinary rainfall will not cause waterlogging problems, but in heavy rains, due to The water storage capacity of permeable pavement is limited, and the problem of waterlogging cannot be avoided

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