Mountain rain and flood collection and drainage device and drainage method

Abstract

The invention provides a mountain rain and flood collection and drainage device and a drainage method. The mountain rain and flood collection and drainage device comprises a box culvert, wherein a longitudinal partition plate is arranged in the box culvert and divides the box culvert into a water storage area and a drainage area. The water storage area is internally provided with a plurality of transverse partition plates perpendicular to the longitudinal partition plate, the water storage area is divided into a plurality of water storage units through the transverse partition plates, the bottom of each water storage unit is connected with an inlet of a water storage area drainage pipe, and an outlet of the water storage area drainage pipe is connected with a downstream greening irrigationwater system. The upper portion of the water drainage area communicates with the upper portion of the water storage area, the bottom surface of the drainage area is connected with inlets of a plurality of drainage area drainage pipes, and outlets of the drainage area drainage pipes communicates with an urban rainwater system. The mountain rain and flood collection and drainage device is suitablefor the situation that after mountain rain and flood of urban middle mountains are intercepted, there are no river channels or reservoirs for drainage guide, and the rain and the flood can only be discharged into the urban rainwater system. The device has the comprehensive benefits that the rain and the flood are intercepted and stored for recycling, urban sewage quantity is reduced, and waterlogging risks are reduced.

Description

technical field [0001] The invention belongs to the technical field of sponge cities, and in particular relates to a collection and drainage device and a drainage method for mountain rainwater and flood. Background technique [0002] Cities in southern my country have a lot of rainfall, and the utilization of rainwater resources has great potential, especially in Shenzhen and other regions. The rapid development of cities has greatly reduced the green area of ​​mountains. , guide drainage, or build wetlands and reservoirs in depressions for regulation and storage. Rainwater in mountainous areas without drainage and storage conditions is generally discharged directly into the urban drainage system. [0003] However, whether it is to build flood intercepting ditches, or to build wetlands and storage tanks, they are all ways to alleviate rain and floods, and have not fundamentally eliminated the threat of urban torrents; especially in mountainous areas where there is no drainage...

AI Technical Summary

Problems solved by technology

[0003] However, whether it is to build flood intercepting ditches, or to build wetlands and storage tanks, they are all ways to alleviate rain and floods, and have not fundamentally eliminated the threat of urban torrents; especially in mountainous areas where there is no drainage and water storage conditions It is directly discharged into the urban drainage system, and the rain and flood are not classified and diverted, but all are discharged into the urban drainage system. On the one hand, it causes pressure on the urban drainage system, and on the other hand, it does not make full use of the rain and flood, resulting in a waste of resources.

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