Waterproof pavement structure and construction method thereof

Abstract

The invention provides a waterproof pavement structure and a construction method thereof. The waterproof pavement structure comprises a finishing coat, a basement layer, a water draining bedding layer and a roadbed from top to bottom, wherein a waterproof layer is arranged between the basement layer and the water draining bedding layer, the waterproof layer is naturally separated from the basement layer and the water draining bedding layer, and a permeable filter layer is arranged between the water draining bedding layer and the roadbed. The construction method of the structure comprises the step of: sequentially paving the roadbed, the permeable filter layer, the water draining bedding layer, the waterproof layer, the basement layer and the finishing layer from bottom to top. The pavement structure can effectively prevent the pavement and the road bed from the damages of road surface water and ground water, thereby prolonging the service life of the road.

Description

technical field [0001] The invention relates to a pavement structure and a construction method thereof, in particular to a waterproof pavement structure and a construction method thereof. Background technique [0002] In fields such as roads, airport runways and municipal facilities, shortened pavement life has become a major problem in construction. There are many reasons for early failure and shortened life of pavement. Among them, research shows that "water is enemy number one". According to the source of water, road surface water damage can be divided into road surface water damage and ground water damage. [0003] Road surface water damage mainly means that road surface water (such as rainwater) enters the interior of the surface layer through the pores, joints or cracks of the surface layer, resulting in water damage to the surface layer material, and the water further infiltrates into the base layer, causing the base layer to be scoured and damaged by dynamic water....

AI Technical Summary

Problems solved by technology

This measure can greatly reduce the degree of frost heave of the subgrade, but the problem is that due to the rise of capillary water, groundwater will still cause frost heave damage inside the pavement structure

The semi-rigid base material has high compressive strength and can resist the compressive stress generated by the extrusion force. However, the tensile strength of the semi-rigid base material is small, and the interlayer tangential force makes the base layer pull, which will cause damage to the base layer. Adverse effects, even when this tensile stress reaches its tensile strength, cracking of the base layer occurs, causing pavement failure

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