Integrated stormwater system for sponge city and its construction method

Abstract

The invention discloses an integrated rainwater system for a sponge city and a construction method of the rainwater system. The rainwater system comprises a middle green belt and water storage tanks, wherein the middle green belt comprises a vegetation planting area and a rainwater infiltration area; a concrete course is arranged at the lower end of the rainwater infiltration area; a rainwater pipe is arranged at the lower end of the concrete course, and the rainwater pipe is connected to the water storage tanks; water pumping pipes are connected from the interiors of the water storage tanks; bidirectional nozzles are arranged at the other ends of the water pumping pipes; and water pumps are connected to the water pumping pipes. In accordance with the shortcomings of the prior art and the characteristics of the sponge city, the rainwater system, which integrates water seepage, water storage, water purification and utilization, is designed, and the construction method of the rainwater system is correspondingly designed; by promoting the water seepage with the adoption of vegetation, the problem of road water-logging is solved through slow discharge and controlled release; and in addition, some impurities in the rainwater are separated on the basis of the purification capacity of the vegetation, and the rainwater is stored in the water storage tanks and is used for spraying roads and watering the vegetation in dry season, so that adverse effect caused by drought and flood seasons can be effectively relieved.

Description

technical field [0001] The invention relates to a rainwater system, in particular to a rainwater system integrating water seepage, water storage, water purification and utilization and a construction method thereof. Background technique [0002] Sponge city has a clear definition, that is, the city can be like a sponge, which has good "elasticity" in adapting to environmental changes and responding to natural disasters. When it rains, it absorbs, stores, infiltrates, and purifies water. "Release" and take advantage of it. Improve the functions of urban ecosystems and reduce the occurrence of urban flood disasters. [0003] To build a sponge city, we must first reverse the concept. The traditional urban construction model is full of hardened roads. Whenever there is heavy rain, drainage is mainly relied on "grey" facilities such as pipes, canals, and pumping stations. The main planning and design concepts are "quick drainage" and "end-centralized" control, which often resu...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide an integrated rainwater system for sponge city and its construction method. Aiming at the defects in the prior art and the characteristics of sponge city, a system integrating water seepage, water storage, water purification and utilization is designed. The rainwater system uses vegetation to organize water seepage, and uses slow drainage and slow release to solve the problem of road water accumulation, and uses the purification ability of vegetation to separate some impurities in rainwater, store them in water storage tanks, and use them for spraying in dry seasons Roads and irrigated vegetation can effectively alleviate the adverse effects of drought and flood seasons

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