由于沥青路面在现行的组合设计中没有太重视,本文基于内蒙古自治区高速公路半刚性基层沥青路面的结构设计参数进行调查,利用ANSYS有限元软件,采用正交试验的方法建立模型,分析了面层厚度、层间接触状况、基层厚度以及路基模量这4个因素对沥青路面的路表弯沉和半刚性基层层底拉应力的敏感性。为以后的沥青路面结构组合设计提供理论基础。 As the asphalt pavement is not paid much attention in the current design, this paper, based on the structural design parameters of semi-rigid base asphalt pavement in Inner Mongolia Autonomous Region, uses ANSYS finite element software and orthogonal test to establish the model. Thickness, inter-layer contact condition, basement thickness and subgrade modulus, which are sensitive to the deflection of road surface and the tensile stress at the bottom of semi-rigid base layer of asphalt pavement. It will provide the theoretical basis for the future design of asphalt pavement structure.