Permeable pavement bioretention device

Abstract

The invention discloses a permeable pavement bioretention device comprising a permeable pavement structure and a bioretention structure. The permeable pavement structure comprises a permeable concretesurface layer, a porous cement stabilized macadam layer, a grading gravel macadam layer and a soil base layer. The bioretention structure includes an ecological tree pool disposed on a sidewalk. A rainwater well is disposed between the permeable pavement structure and the bioretention structure, and a plurality of permeation diversion guide pipes are connected to the bottom of the rainwater well.The permeable pavement bioretention device realizes reasonable connection of permeable pavement and bioretention, and compared with single measures such as the permeable pavement or the bioretention,the combined application can more effectively improve the drainage design standard. Pavement runoff is reduced, rainwater is returned to the underground, urban waterlog is prevented, non-point sourcepollution caused by rainfall runoff is reduced, water pollution of river channels is reduced, the urban heat island effect is alleviated, the comfortable and safe driving environment is provided, andthe permeable pavement bioretention device has great practical significance to improve urban environment and maintain ecology balance.

Description

technical field [0001] The invention relates to the technical field of road construction, in particular to a permeable pavement biological retention device. Background technique [0002] With the advancement of urbanization, the impermeable area of ​​modern cities can increase year by year, resulting in the increase of urban rainwater surface runoff and the decrease of water quality, which greatly increases the risk of cities being affected by heavy rain. The "rainwater disease" in cities is becoming more and more serious. Permeable pavements and bioretention, as relatively widely used low-impact development stormwater management and control technologies, are increasingly being used in urban roads, squares and other places. Compared with a single permeable pavement and bioretention facilities, it has not yet fully exerted its effective drainage function. Contents of the invention [0003] The purpose of the present invention is to overcome the deficiencies of the prior ar...

AI Technical Summary

Problems solved by technology

Compared with the single permeable pavement and bio-retention facilities, the effective drainage function has not been fully exerted

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