一种沥青路面车辙形成的分析方法及工程应用

A Analysis Method of Asphalt Pavement Rut Forming and Its Engineering Application

车辙是高速公路沥青路面营运过程中的常见病害,也是摆在工程技术人员面前一个难点。该文把沥青混合料视为粘弹性塑性本构关系,较符合沥青路面车辙形成的这种现象。在此基础上,笔者研究了描述沥青混合料本构关系的层叠流变模型基本原理,进一步编制了相应的计算软件。最后结合实际工程,进行了实例演算,得到了一些有益结论。其成果可供同行借鉴。

The rut is the common defect in the expressway asphalt pavement operation process, and is one difficulty for the engineering technical members. The asphalt mixture is regarded as the constitutive relation of viscoelastic plastic in the article, which conforms to this phenomenon of asphalt pavement rut forming. On this basis, the article studies the basic principle of overlayer rheological model describing the constitutive relation of asphalt mixture. The relative calculation software is further compiled. According to the practical projects, the practical cases are calculated and some beneficial conclusions are achieved. The result can be referred for the similar projects.