Full-permeable pavement structure suitable for large slope

Abstract

The invention discloses a full-permeable pavement structure suitable for a large slope. The full-permeable pavement structure comprises a permeable surface layer, a water storage base layer, a sub-base layer and a soil base, wherein the soil base is of a stepped structure, subbase layers are laid on all stepped surfaces of the soil base, earthwork cloth is arranged between the residual subbase layers of the soil base, all the subbase layers further form the stepped structure, the water storage base layer is laid on the subbase layers, a top surface of the water storage base layer is a slope, the permeable surface layer is laid on the water storage base layer, a top surface of the permeable surface layer is a slope, a water baffle is arranged between the adjacent subbase stepped surfaces, the bottom of the water baffle makes contact with an upper surface of the higher subbase, and the top of the water baffle is located in the permeable surface layer, and descending trends of all the step structures and the slopes are consistent. The full-permeable pavement structure is advantaged in that through the step-shaped water storage base layer and the water baffle, a problem that the waterinfiltration amount of a permeable pavement in a slope section is low, and the water is accumulated on a slope downstream pavement due to increase of the water amount is solved.

Description

technical field [0001] The invention relates to a fully permeable pavement structure suitable for large slopes, and belongs to the technical field of pavement structures. Background technique [0002] In recent years, with the proposal of the "sponge city" concept, various cities and regions in my country have responded positively and adopted various sponge measures to transform and construct existing sites. Considering that the proportion of road land in urban construction land can reach 15%-20%, the water permeability of municipal road pavement is a key part of sponge city construction. [0003] Fully permeable pavement is suitable for sidewalks, non-motor vehicle lanes and landscape hard ground. Rainwater can seep down along its permeable surface layer, water storage base, and subbase all the way, and finally seep into the roadbed soil. Existing practical experience shows that the permeable performance of this permeable pavement is relatively good in areas with flat terr...

AI Technical Summary

Problems solved by technology

[0004] Purpose: In order to overcome the deficiencies in the prior art, the present invention provides a fully permeable pavement structure suitable for large slopes, which solves the problem of low water infiltration at the bottom of the slope and the problem of the downstream road surface of the slope due to the increase in water volume of the existing permeable pavement. The problem of road surface water

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