基于粘弹性体系沥青路面车辙有限元分析研究

Study on Rutting Finite Element Analysis of Asphalt Pavement Based on Viscoelastic System

首先依据辽宁省即将进行的双向十车道整体式高速公路改扩建需求,进行了货车车道路面结构调研,并依据调研结果,制定出三种路面结构;然后选用两种沥青路面粘弹性模型,通过对三种路面结构的室内试验,确定了粘弹性模型相关参数;最后利用有限元软件,按实测参数,对三种结构的沥青路面车辙进行了模拟分析。分析结果可作为货车车道路面结构选取的参考依据。

Firstly,according to the needs of the reconstruction and expansion of two-way ten Lane integral Expressway in our province,this paper investigates the pavement structure of truck lane,and formulates three pavement structures according to the investigation results.Then,two viscoelastic models of asphalt pavement are selected,and the relevant parameters of viscoelastic model are determined through the indoor tests of three pavement structures.Finally,the rutting of asphalt pavement with three structures is simulated and analyzed by usingfinite element software according to the measured parameters.The analysis results can be used as a reference for the selection of pavement structure of truck lane.