Sponge city seepage and drainage structure and sponge city water circulation system

Abstract

The invention relates to the technical field of sponge cities, in particular to a sponge city seepage and drainage structure and a sponge city water circulation system. A rainwater well, a diversion well, a filtering device and a water storage pool are included, the rainwater well comprises an outer well and an inner well arranged in the outer well, the top end of the outer well is provided with arainwater grate flush with the ground, a filtering hanging basket with an upward opening is arranged in the inner well, the bottom of the inner well is connected with a water storage pipeline communicated with a grass planting ditch, and a plurality of overflow holes communicated with the cavity are formed in the inner well in a penetrating mode; and a filter screen is arranged between the outerwell and the diversion well. By adopting a grading drainage mode, the purpose of rapidly reducing accumulated water on the road surface can be achieved, rainwater deposition is not easily caused, andtherefore the drainage capacity of an urban drainage system can be effectively improved. Meanwhile, the urban water storage capacity is increased, and urban water resources are saved. Through the arrangement of the rainwater grate, the filtering hanging basket and the filtering net, the filtering effect on rainwater can be achieved, and impurities contained in the rainwater can be effectively removed.

Description

technical field [0001] The invention relates to the technical field of sponge cities, in particular to a sponge city seepage and drainage structure and a sponge city water circulation system. Background technique [0002] Sponge city is a new generation of urban stormwater management concept, which can also be called "water elastic city". The international term is "low-impact development stormwater system construction". Building a sponge city, making overall use of natural ecological functions and artificial intervention functions, effectively controlling rainwater runoff, and realizing the urban development mode of natural accumulation, natural infiltration, and natural purification is conducive to restoring urban water ecology, conserving water resources, and enhancing urban waterlogging prevention capabilities. Expand effective investment in public goods, improve the quality of new urbanization, and promote the harmonious development of man and nature. [0003] At prese...

AI Technical Summary

Problems solved by technology

Temporary pumping and drainage is required, which affects the normal operation of the city and also causes huge economic losses

[0004] Especially in some coastal cities, especially in the case of extreme rainfall, the structure of the sponge city cannot effectively deal with the rainwater in a timely manner and is prone to waterlogging disasters

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