Analysis of Layered Asphalt Concrete Pavement Structure Under Heavy-loads

The dynamic response of layered pavement structure under heavy-loads is analyzed by using the three-dimensional(3D) finite-element method and the orthogonal test in conjunction with ANSYS software.The results show that the thickness of pavement layers is a major factor in affecting vertical dynamic stress distribution.The elastic modules of asphalt concrete have a great influence on the integral stiffness and maximum shear stress in asphalt concrete pavement,and there is a cross impact between the elastic modulus,the Poisson ratio and the thickness of pavement layers.The results can be used for references in asphalt pavement design and the uses of pavement materials.