Permeable pavement drainage structure

Abstract

The invention belongs to the technical field of road drainage design, and particularly relates to a permeable pavement drainage structure. The drainage structure comprises a drainage road, a motor-driven and non-motor-driven isolation belt and vertical kerbs arranged between the drainage road and the motor-driven and non-motor-driven isolation belt. The drainage road sequentially comprises a roadbed, a non-permeable pavement lower-layer structure and a permeable pavement upper-layer structure from bottom to top, wherein permeable pores which are communicated with one another are formed in thepermeable pavement upper-layer structure; and 1.5%-3% of a cross slope is arranged on the plane of the drainage road. A first drainage hole and a second drainage hole are formed in the side wall of the vertical kerb, and the upper surface of the permeable pavement upper-layer structure is located between the upper edge and the lower edge of the first drainage hole; the upper surface of the non-permeable pavement lower layer structure is located between the upper edge and the lower edge of the second drainage hole, and the upper surface of a filler in the motor-driven and non-motor-driven isolation belt is lower than the lower edge of the first drainage hole. By arranging a plurality of drainage ways, the road surface drainage speed is increased, and rainwater is collected and drained intothe motor-driven and non-motor-driven isolation belt and is retained in the storage facility after being purified.

Description

technical field [0001] The invention belongs to the technical field of road drainage design, in particular to a permeable road surface drainage structure. Background technique [0002] With the rapid increase of my country's urbanization level, the area of ​​hardened pavement has increased sharply, which not only destroys the original ecosystem, but also changes the original natural ecological background and hydrological characteristics of the city. More than 70% of the rainfall forms runoff and is discharged, making the city unable to store water, and the phenomenon of "heavy rain will cause waterlogging, and rain will be drought". Sponge city is a historic and strategic step to realize the six-in-one comprehensive drainage and ecological drainage of "seepage, stagnation, storage, purification, use, and drainage" from the era of fast drainage, timely and nearby drainage, and rapid drainage. change. [0003] my country began to conduct experimental research on sand-free ma...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a permeable pavement drainage structure to at least solve the problem that the water discharged from the current drainage pavement is not well purified and retained for use.

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