High-strength anti-crack asphalt pavement structure and construction method thereof

Abstract

The invention discloses a high-strength anti-crack asphalt pavement structure and a construction method thereof, which comprises a cushion layer sequentially paved on the roadbed from bottom to top, Asubbase lay, a base layer and a surface lay, wherein that cushion layer is a gravel or gravel layer, the subbase layer is a plug-in geocell reinforce asphalt concrete layer, the base layer is a welding geocell reinforced asphalt concrete layer, the surface layer is an asphalt concrete layer, and the welding geocell and the plug-in geocell are staggered-jointed and laid. The plug-in type geocell comprises a reinforcement band and a special-shaped insert, wherein the reinforcement band is fixed through the special-shaped insert, and the thickness of the subbase layer is equal to the thickness of the plug-in type geocell. The invention can effectively improve the bearing capacity and the deformation resistance of the asphalt concrete pavement, limit the development of the structural damage crack and the deformation of the asphalt pavement, prolong the service life of the asphalt pavement, reduce the cost and facilitate the construction.

Description

technical field [0001] The invention relates to the technical field of highway pavement, in particular to a high-strength anti-crack asphalt pavement structure and a construction method thereof. Background technique [0002] The construction of high-grade highways in my country has shown a leap-forward development. Due to factors such as material quality, external environment, improper design, and construction, coupled with a relatively large increase in traffic volume, an increase in the axle load of automobiles, large-scale, overloading, and channelization of vehicles, etc. , the use conditions of roads are becoming increasingly harsh, especially for asphalt concrete pavement, will face a severe test. Many high-grade roads, even if heavy traffic asphalt is used or even high-quality asphalt imported from abroad, will be damaged by rutting, temperature shrinkage, cracks, water damage, etc. Occurs from time to time, so that many pavements have to be repaired on a large scale lo...

AI Technical Summary

Problems solved by technology

[0002] The construction of high-grade highways in my country has shown a leap-forward development. Due to factors such as material quality, external environment, improper design, and construction, coupled with a relatively large increase in traffic volume, an increase in the axle load of automobiles, large-scale, overloading, and channelization of vehicles, etc. , the use conditions of roads are becoming increasingly harsh, especially for asphalt concrete pavement, will face a severe test. Many high-grade roads, even if heavy traffic asphalt is used or even high-quality asphalt imported from abroad, will be damaged by rutting, temperature shrinkage, cracks, water damage, etc. Occurs from time to time, many pavements have to undergo large-scale maintenance and covering long before the design service life, and bring a lot of direct or indirect economic losses

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