Step-type green land with rainwater in-place elimination function

Abstract

A step-type green land with a rainwater in-place elimination function comprises at least one step green land module. Each step green land module comprises a planting layer, a dispersing layer, an adsorption layer, a diversion layer, a retaining wall and a water collecting pipe. Rainwater infiltration, purification, collection, storage and utilization facilities are provided, runoff can be effectively intercepted and slowed down, and rainwater is eliminated, purified and recovered on the spot. The soil structure has certain permeability to speed up rainwater infiltration; grass planting grids are laid on the slope surface so that the surface layer water and soil loss can be reduced; the adsorption layers can effectively adsorb and purify the infiltrated rainwater; the planting layers and the dispersing layers are arranged on the upper portions of the retaining walls so that the moisture can be quickly dispersed; the surfaces of the retaining walls are subjected to infiltration prevention treatment, and thus the situation that the rainwater erodes and damages wall bodies is avoided; and the step green land can be perfectly integrated with surrounding green land environments through the design of the invisible retaining walls, and thus the natural landscape effect of the green land is improved.

Description

technical field [0001] The invention provides a stepped green space for on-site consumption and utilization of rainwater and a construction method thereof, which are suitable for sponge city construction, ecological slope protection projects, and landscape greening projects. Background technique [0002] With the enhancement of people's awareness of environmental protection and the protection requirements of the ecological environment, a single engineering slope protection can no longer meet the development needs of human society. Ecological slope protection is to protect the slope or side slope with the basic knowledge of engineering mechanics, soil science, ecology and botany, and form a comprehensive slope protection technology composed of engineering and plants. The way and means is to use vegetation to protect the slope surface. protection and erosion control. At present, it is more intuitively called "slope greening" in the engineering field. Ecological slope protect...

AI Technical Summary

Problems solved by technology

The stepped structure can effectively prevent soil landslides and reduce soil erosion, but the hardened retaining wall is likely to conflict with the surrounding green landscape, affecting the landscape effect

[0003] The traditional land development model leads to a significant decrease in the water permeability and water stagnation performance of the underlying surface of the city, while the increase in the urban impermeable area causes changes in the urban confluence process during the rainfall process: surface runoff increases, flood peak flow increases, flood discharge With shortened duration and earlier peak time, the city is facing a serious threat of waterlogging; on the other hand, water shortage and water pollution have become environmental problems restricting the sustainable development of the city, and the rainwater fast drainage facilities adopted to reduce the risk of urban waterlogging, Treat rainwater as "sewage" and discharge it into urban water bodies, resulting in the loss of rainwater resources, urban water pollution and other problems

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