不同路面结构的重载敏感性分析

我国主要的路面结构为半刚性基层沥青混路面、水泥混凝土路面及柔性基层沥青路面,不同的路面结构在荷载的作用下表现出不同的力学特性。本文通过非线性力学分析,探讨了路面结构在重载作用下的非线性特性,得出了考虑重载条件的沥青路面轴载换算方法。结合路面结构轴载状况的调查及新的轴载换算方法,分析了不同路面结构对重载的敏感性。

Sensitivity Analysis of Pavement Structures under Heavy Traffic Load

There are three main different pavement structures used in China,stabilized material base asphalt pavement,Portland cement concrete pavement and granular material base asphalt pavement.Different pavement structures will have different mechanical properties under heavy traffic load.Based on non-linear analysis finite method,the non-linear properties of pavement structures under heavy traffic load were analyzed and then the equivalent standard axles (ESAs) formula were presented.The sensibilities of flexible asphalt pavement,semi-rigid asphalt pavement and cement concrete pavement under heavy traffic load which is based on the new ESAs formula were studied in this paper.