Semi support water storage green land structure for urban flood control and flood utilization

Abstract

The invention provides a semi support water storage green land structure for urban flood control and flood utilization. The structure comprises a rainwater infiltration structure, an underground water storage body water conveying and cleaning structure and a water taking and using structure; the rainwater infiltration structure comprises a road surface drainage ditch, green land backfilling soil and a first water permeable hose; the first water permeable hose is transversely arranged in the green land backfilling soil and is communicated with the road surface drainage ditch; the underground water storage body water conveying and cleaning structure comprises a geotextile, a common water permeable material, a second water permeable hose and rigid supports at two sides; the geotextile is paved below the first water permeable hose; the common water permeable material and the transverse second water permeable hose are arranged below the geotextile in sequence; the water taking and using structure comprises a water taking port, an inspection examination well and a third water permeable hose which are downwards arranged from the earth surface in sequence; the third water permeable hose and the second water permeable hose are communicated. The structure of an underground water storage body can be effectively improved, the construction cost and difficulty are reduced, the peak value of urban flood can be weakened and the flood resource can be stored.

Description

technical field [0001] The invention relates to the technical field of urban water supply and drainage, and is a semi-supported water-storage greenbelt structure used to alleviate urban flood control pressure and collect rainwater to store it underground. Background technique [0002] With the acceleration of the urbanization process, more and more ground is covered by concrete and asphalt, and the hardening of the large area of ​​the ground makes the road easily flooded when it encounters precipitation, resulting in increased peak flow, earlier peak time, and increased confluence speed. A series of urban waterlogging problems have increased the threat of urban floods, brought a lot of inconvenience to people's travel and life, and failed to effectively utilize urban flood resources. [0003] In response to such problems, some cities have taken corresponding measures and built a number of underground flood storage projects, which have relieved the city's flood control pressu...

AI Technical Summary

Problems solved by technology

[0002] With the acceleration of the urbanization process, more and more ground is covered by concrete and asphalt, and the hardening of the large area of ​​the ground makes the road easily flooded when it encounters precipitation, resulting in increased peak flow, earlier peak time, and increased confluence speed. A series of urban waterlogging problems have increased the threat of urban floods, brought a lot of inconvenience to people's travel and life, and failed to effectively use urban flood resources

[0003] In response to such problems, some cities have taken corresponding measures and built a number of underground flood storage projects, which have relieved the city's flood control pressure to a certain extent, but the effect is not significant enough. There are mainly the following problems: 1. The construction of conventional underground flood storage tanks is difficult Large size, high cost, limited water storage capacity, and single function; 2. Since the surface and underground pollutants enter the water storage body together with the water flow, the water quality of the water storage cannot be effectively guaranteed; 3. The top of the ordinary water storage body must be built. It is not only the engineering quantity, but also inconvenient for the maintenance and improvement of the water storage body in the later stage

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