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摘要
In order to study the correlation between internal damage development of asphalt pavement structure and road structure form, 3D ground penetrating radar (GPR) was used to detect the internal damage of combined base asphalt pavement structure with long service life. The main types of pavement internal damage were analyzed, and the correlation between internal damage of asphalt pavement structure and filling and excavation forms, subgrade characteristics and protection characteristics were studied. The development law of internal damage of asphalt pavement structure with long service life was clarified. The results show that the internal cracks of the combined base pavement structure can't be reflected to the pavement surface even in the long service. Hard shoulder will also produce crack disease without traffic load. Setting retaining wall can reduce the risk of hard shoulder cracking, but it will increase the risk of lane cracking. ? 2022, Editorial Department of Journal of Wuhan University of Technology. All right reserved.
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