Penetration green belt for sponge city

Abstract

The invention discloses a penetration green belt for a sponge city. The penetration green belt comprises a vegetation layer, a soil layer, a filter layer, water-permeable geotextile, a water-permeablepipe and a pad layer from top to bottom, the water-permeable pipe penetrates through the pad layer, and the tail end of the water-permeable pipe is connected with a water storage device; the water storage device is provided with a water outlet pipe and a single-way valve and is in butt joint with an external drainage pipe of a pipe net or a pump station or an underground drainage pipe. Accordingto the penetration green belt for the sponge city, the functions of water suction, water storage, water penetration, water purification, water discharge and water application are integrated, the penetration green belt is simple in structure, convenient to construct, low in price and convenient to use and can be applied to city greening belts, such as biological retention belts, lawn and gardens, at the road sides, city water logging can be reduced, the utilization rate of rainwater can also be increased, and meanwhile the penetration green belt for the sponge city has the benefits such as ecology, environment protection and energy saving.

Description

technical field [0001] The invention relates to the field of municipal water supply and drainage engineering, in particular to a permeable green belt for a sponge city. Background technique [0002] At present, the construction mode of most cities is basically to harden the road surface and use underground drainage pipes to drain water. When it rains heavily, it mainly relies on "grey" facilities such as pipes and pumping stations to drain water, and controls it with "quick drainage" and "end concentration" It is the main planning and design concept, which often results in waterlogging every rainy season and rapid turnaround of drought and flooding. Moreover, the greenbelts, lawns, gardens and other greenbelts next to urban roads basically adopt the traditional vegetation-soil planting method, which is prone to rainstorms. It will lead to soil loss, vegetation soaking damage, etc., and even cause waterlogging in light rain and waterlogging in heavy rain, which is not conduci...

AI Technical Summary

Problems solved by technology

[0002] At present, the construction mode of most cities is basically to harden the road surface and use underground drainage pipes to drain water. When it rains heavily, it mainly relies on "grey" facilities such as pipes and pumping stations to drain water, and controls it with "quick drainage" and "end concentration" It is the main planning and design concept, which often results in waterlogging every rainy season and rapid turnaround of drought and flooding. Moreover, the greenbelts, lawns, gardens and other greenbelts next to urban roads basically adopt the traditional vegetation-soil planting method, which is prone to rainstorms. Lead to soil loss, damage to vegetation soaking, etc., and even cause waterlogging in light rain and waterlogging in heavy rain, which is not conducive to the effective collection and full utilization of rainwater

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