A drainage asphalt pavement structure and construction method

Abstract

The invention provides a drainage asphalt pavement structure. The drainage asphalt pavement structure comprises a base course, an assembled type concrete slab and a drainage asphalt surface course insequence from bottom to top; and a bonding water-resisting layer and a transverse stiffened layer are arranged between the assembled type concrete slab and the drainage asphalt surface course in sequence from bottom to top. According to the drainage asphalt pavement structure, the integral rigidity of the pavement structure can be effectively enhanced, the vertical load resisting capability of thestructure is improved, and the thickness of the pavement structure is reduced; as a concrete filling body and a bottom connecting plate are arranged at the bottom of the joint of the adjacent assembled concrete slabs, the positioning accuracy of the assembled concrete slabs can be improved to prevent the problem of bottom disjoint of the slabs; and meanwhile, as a flexible filling body and a joint connecting plate are arranged at the top of the joint of the adjacent assembled concrete slabs, reflection cracks can be effectively blocked, and the structural integrity can be enhanced; as slab top water drainage grooves are formed in the tops of the assembled concrete slabs, the water drainage effect of the pavement structure can be effectively improved; and as connecting tenons and rear grouting bodies are arranged at the bottom of the assembled concrete slabs, the assembled concrete slabs can be prevented from transversely moving.

Description

technical field [0001] The invention relates to the field of road engineering, in particular to a drainage asphalt pavement structure and a construction method. Background technique [0002] In the construction and construction process of urban roads and highways in my country, issues such as the conservation and utilization of building materials and the improvement of construction efficiency are often involved. At the same time, in order to improve the drainage performance of traditional roads, a series of drainage pavement structures have been favored by the engineering and academic circles. [0003] At present, the common structure of permeable pavement is porous asphalt mixture or porous cement concrete as the surface layer, the base layer is graded gravel with good water permeability, and the subbase is non-graded gravel with certain water storage capacity. The top surface is covered with geotextile. Although this structure can solve the internal drainage problem of t...

AI Technical Summary

Problems solved by technology

Although this kind of pavement can alleviate the pavement water to a certain extent and has good anti-skid performance, the flatness and durability of the pavement surface layer are poor, and the construction period is long

[0004] To sum up, the existing asphalt pavement structure and construction methods have achieved good results under suitable working conditions, but there are still areas for further improvement in terms of improving pavement performance and construction efficiency.

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