Sponge urban road ecological drainage system

Abstract

The invention discloses a sponge urban road ecological drainage system. The sponge urban road ecological drainage system comprises a roadway and a road surface rainwater inspection well arranged on the roadway, wherein the road surface rainwater inspection well is communicated with an underground rainwater pipe network; an ecological drainage structure at the edge of the roadway sequentially comprises an ecological drainage groove, a concave green belt and a green land from inside to outside; the ecological drainage groove comprises an inner groove wall, a groove bottom and an outer groove wall which are integrally connected; a water inlet hole is formed in the inner groove wall; a water seepage hole is formed in the outer groove wall; a green belt rainwater inspection well is arranged in the concave green belt; an overflow type rainwater grate is arranged at the upper end of the green belt rainwater inspection well; the height of the overflow type rainwater grate is smaller than that of the outer groove wall; the green belt rainwater inspection well is communicated with the road surface rainwater inspection well through an underground transverse branch pipe. The sponge urban road ecological drainage system can keep a relatively good drainage effect for a long period of time, is high in rainwater resource utilization rate, can play a radical role in road surface water accumulation, and has remarkable economic value and social value.

Description

technical field [0001] The invention relates to the technical field of sponge city road drainage, in particular to a sponge city road ecological drainage system. Background technique [0002] Sponge city refers to a city that can be like a sponge and has good "elasticity" in adapting to environmental changes and responding to natural disasters. Use to improve the utilization rate of rainwater. When there is water on the road, one of the hazards is that the asphalt concrete pavement will slowly penetrate into the gap between the asphalt and the aggregate under the repeated load of the vehicle and the expansion and contraction caused by the temperature change, thereby destroying the relationship between the asphalt and the aggregate. Adhesive film reduces the cohesive force, eventually leading to the loss of strength of the pavement and the destruction of stability; another hazard is that water will form a water film on the cement concrete pavement, resulting in a decrease in...

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Problems solved by technology

Such measures may have a certain effect on the absorption of rainwater on the pavement in the early stage of use, but as the green belt soil absorbs water and saturates, the holes on the edge stones will not only be unable to drain rainwater into the roadside green space or green belt, but will instead drain the green space or green belt. The soil in the green belt washes onto the road surface, causing road surface pollution and soil loss in the green belt. If things go on like this, it will even lead to blockage of the underground pipe network, which will not be able to cure the water on the road

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