基于抗裂考虑的沥青路面力学响应

Study on Asphalt Pavement Mechanics Response Based on Anti-crack Consideration

为了研究沥青混凝土路面半刚性基层收缩裂缝处应力分布规律,分析应力与面层厚度之间的关系,建立了带有基层反射裂缝的有限元模型,分析了轮载作用于裂缝边缘处时路面应力分布规律,同时对不同面层厚度下裂缝位置应力分布进行研究,并得出路面厚度与裂缝位置应力大小的关系。

In order to study the stress distribution rule at the shrinkage cracks of the semi-rigid base course for asphalt concrete pavement,and to analyze the relations between the stress and surface layer thickness,the finite element model for the reflection crack of the base course has been established,the road surface stress distribution rule at the crack edge with the wheel load has been analyzed,the study on stress distribution at the crack positions with different surface layer thickness has been conducted,and the relation between pavement thickness and stress at the crack positions has been obtained.