Underground rainwater regulation and storage device for urban green space

Abstract

The invention discloses an urban green space underground rainwater regulation and storage installation, comprising a water inlet, a water storage, a drainage member and an inspection chamber. The water inlet is disposed in a wall on the side of a green tank. A U-shaped retaining board is disposed between the water inlet and planting soil of the green tank. A cover board is disposed above a channel of the U-shaped retaining board. A water incoming well is arranged below the channel of the U-shaped retaining board. The water storage comprises a planting layer, a water storage layer and a base layer. The water storage layer is disposed between the planting layer and the base layer. The outer side wall of the water storage layer is covered with a geotextile layer. The drain component comprises a water collection block, a drain pipe and a hydraulics check valve. The hydraulics check valve is disposed inside the inspection chamber and fixed to the sidewall of the inspection chamber. The water collection block is disposed at a water outlet of the water storage layer. The urban green space underground rainwater regulation and storage installation regulates and stores rainwater and drains rainwater without power and manual operation and automatically stores and drains the water in such cycle completely according to a level difference.

Description

technical field [0001] The invention relates to the technical field of municipal water conservancy engineering, and relates to an underground rainwater regulation and storage device for urban green spaces. Background technique [0002] A heavy rainfall, the streets become rivers, houses are flooded, cars are sunken, traffic jams... Such scenes are repeated in cities every year. When heavy rain hits, waterlogging will occur in almost every city, and waterlogging is prevented every year. The reason is simple. The precipitation exceeds the drainage capacity of the city. The rainwater cannot be drained, and the rivers and lakes cannot be stored. Eventually, the city will suffer from stagnant water and internal waterlogging disasters. [0003] At present, one of the methods to control urban waterlogging is to build ecological cities and green rainwater infrastructure. This method has already been implemented in foreign countries, and it has also been implemented in some cities ...

AI Technical Summary

Problems solved by technology

This kind of rainwater storage facilities is relatively concentrated, and the storage volume is limited; the layout can only be one point, and it is not easy to achieve the purpose of obviously regulating and storing storm peaks, and it occupies a large area, requires a large investment, and has a long idle time, which affects the rainwater utilization system economy

Actual engineering shows that in areas and cities with concentrated rainfall and heavy rain, it is difficult to solve waterlogging by building large storage tanks

[0005] To sum up, the composition of the current green underground water storage is unreasonable, the water storage is very limited, which is not conducive to waterlogging control, and the full rainwater cannot be discharged, which is not conducive to plant growth and diversity

The construction of a large underground storage tank can only be done at one point, and the rainwater collection on the opposite side requires a large investment and poor effect

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