A high-strength, high-permeability permeable pavement structure and laying method thereof

Abstract

The invention discloses a permeable pavement structure with high strength and high permeability. The permeable pavement structure comprises a water isolating seal layer, a base layer and a surface layer which are sequentially arranged on a soil matrix; the surface layer comprises a permeable framework, and concrete positioned among pores of the permeable framework; the permeable framework comprises transverse vent pipes which are communicated with one another and vertical osmosis pipes vertically arranged on the transverse vent pipes; the base layer comprises rubble layer at the upper layer and a sand mat at the lower layer; and the water isolating seal layer comprises a water isolating membrane. The high-density concrete in the surface layer has the advantages of high strength and high durability, and the permeable framework in the concrete can guide rainfall into the base layer so as to prevent accumulation of rainfall on the pavement. Rubbles in the rubble layer are overlapped so as to form a flowing passage for rainfall, thus playing the role in delivering water and improving the strength of the base layer. Macadams in the sand mat can decelerate infiltration of the rainfall, thus playing the roles in storing water, discharging water and improving the strength of the base layer; and the water isolating membrane can prevent the rainfall from permeating into the soil matrix.

Description

technical field [0001] The application belongs to the technical field of urban pavement structures, and in particular relates to a high-strength, high-permeability permeable pavement structure and a laying method of the permeable pavement structure. Background technique [0002] At present, urban pavements are basically water-blocking structural layers, and account for a large proportion of the total urban area. Although convenient transportation infrastructure and smooth roads have brought great convenience to people's travel, these impermeable roads have also brought great negative impacts on the ecological environment of the city. [0003] First of all, the imperviousness of the pavement completely blocks the precious natural precipitation from the underlying soil and groundwater. Most of the precipitation is discharged into surface water sources such as rivers, lakes and seas through the urban drainage system pipe network. In addition, the excessive extraction of urban g...

AI Technical Summary

Problems solved by technology

The traditional permeable pavement has the following disadvantages. First, due to the limitation of low-strength porous concrete, it can only be used in parking lots, sidewalks, exhibition area walkways, urban leisure squares, etc. Accumulation inside the structure, resulting in damage to the pavement structure due to long-term water immersion

Images