Permeable asphalt pavement drainage system

Abstract

The invention discloses a permeable asphalt pavement drainage system, and relates to the field of pavement drainage. The permeable asphalt pavement efficient drainage structure comprises a surface layer, a base layer, a cushion layer and a drainage device; the surface layer is divided into an upper surface layer and a lower surface layer, a sealing layer is laid between the lower surface layer andthe base layer, and the cushion layer serves as a waterproof layer. The drainage device is located on the side of the surface layer and an inlet is used for receiving rainwater of the road surface layer. The drainage device comprises a drainage channel and a drainage pipeline, the drainage pipeline divides the drainage channel into a first drainage channel and a second drainage channel, and a water level controller is installed at an inlet of the drainage pipeline. Filter screen filter layers are arranged at inlets and outlets of the two drainage channels. The permeable asphalt pavement drainage system has the characteristics of high water filtering, storing and draining efficiency and prevention of forming accumulated water on a pavement. Meanwhile, the permeable asphalt pavement can weaken the dynamic water pressure and the vacuum negative pressure suction effect generated by wheels on the pavement, and rainwater in the pavement can be transferred into the drainage pipe through a gap.

Description

technical field [0001] The invention relates to the technical field of engineering, in particular to a permeable asphalt pavement drainage system. Background technique [0002] The construction of the sponge city has entered the stage of full implementation. At present, permeable pavement materials such as permeable concrete, permeable asphalt, and permeable bricks are mainly used. However, there is still a lack of research on the clogging of the pores of these permeable materials and their maintenance and recovery, making it a lack of mature references for the service life, construction and maintenance costs, and environmental impact of permeable materials. Therefore, when the water permeability of the permeable pavement material decreases, how to ensure the drainage capacity of the permeable pavement becomes the key to the construction of the sponge city. In addition, the rainy conditions in coastal cities have increased the difficulty of drainage of permeable pavements, ...

AI Technical Summary

Problems solved by technology

However, there is still a lack of research on the clogging of the pores of these permeable materials and their maintenance and restoration, making it a lack of mature references for the service life, construction and maintenance costs, and environmental impact of permeable materials.

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