A net-type stormwater weir for decentralized water collection and storage in hilly areas and its construction method

Abstract

The invention discloses a net-type rainwater weir for scattered water collection and storage in hilly areas and a construction method thereof. In mountain streams in hilly areas, several rainwater weirs at intervals are built according to local conditions, and the bottom of each rainstorm weir is In the foundation pit, there is a water pad with sand and gravel net bags, in the middle of the water pad, there is a foot protector with sand and gravel net bags, in the embankment groove, there is a revetment with sand and gravel net bags, and on the upstream side of the foot protection, there is a water protection There is a mesh body filled with sand and gravel mesh bags on the pad, and the rainwater flowing into the mountain stream is blocked by the mesh body to form a reservoir. The present invention can reduce the probability of causing mountain torrents or mud-rock flows, reduce the inflow flood of the Chushankou Reservoir Project, and improve the ability of flood control and disaster reduction in the watershed; at the same time, it prolongs the time for the blocked rain and flood to fully infiltrate into the ground and absorb vegetation, which is reasonable Utilizing rain and flood resources, improving the bearing capacity of groundwater in hilly areas, and realizing soil and water conservation in mountains, it is a water conservancy engineering measure for flood control and disaster reduction and effective use of rain and flood resources.

Description

technical field [0001] The invention relates to the fields of utilization of rainwater and flood resources, flood control and disaster reduction, and hydraulic structures, in particular to a net-type rainwater weir for scattered collection and storage of water in hilly areas. Background technique [0002] At present, in flood control and disaster reduction in river basins, the construction and optimal dispatch of controllable reservoirs are focused, while the collection and utilization of distributed rainwater and flood in hilly areas and its important role in downstream flood control safety are ignored. When it rains in hilly areas, the rain and floods gather in the mountain stream instantly. On the one hand, this part of the rain and floods flow away in vain and cannot be fully utilized; The flood control risk of Shankou controlled reservoir will affect the life and property safety of people in the middle and lower reaches of the river basin. Contents of the invention ...

AI Technical Summary

Problems solved by technology

When it rains in hilly areas, the rain and floods gather in the mountain stream instantly. On the one hand, this part of the rain and floods flow away in vain and cannot be fully utilized; The flood control risk of the Shankou Controlled Reservoir, which in turn affects the life and property safety of people in the middle and lower reaches of the river basin

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