中文摘要：

为了掌握薄型沥青混凝土道路在车载作用下受力特点,道路结构层参数变化对沥青混凝土路面的力学响应,采用有限元软件ABAQUS建立薄型沥青混凝土路面的结构模型,通过有限元软件分析各结构参数的变化对沥青层底拉应力、路表弯沉、面层剪应力敏感性,并且对各个因素的敏感性进行评价。结果表明,面层模量和面层厚度的增加可减小路表弯沉,从面层模量和面层厚度的改变对路面指标的改变幅度来看,基层模量改变对层底最大拉应力的影响显著,面层模量的改变对面层位置不同处最大剪应力峰值的影响也比较明显。因此在薄型沥青混凝土路面技术应用中,应该加强控制基层材料性能指标。

英文摘要：

In order to master mechanical characteristics of thin asphalt concrete pavement,and the parameters of structure layer on the mechanical response of asphalt concrete pavement,the structure model of thin asphalt concrete pavement is established using ABAQUS finite element software,which is used to analyze the sensitivity of bottom layer tensile stress,pavement deflection,shear stress of surface layer for changing of the structure layer parameters,and the sensitivity of various factors was evaluated. The results show that the increase of surface layer modulus and surface thickness can reduce pavement deflection,the influence for base modulus of bottom layer tensile stress is more obvious,to the extents of above？ changes？ for the index of pavement. What＇s more,which influence of the maximum shear stress at different positions of the surface layer is also obvious. So it should strengthen the control of base material index in the applied of thin asphalt concrete pavement.