Finite element analysis of rutting on full depth asphalt pavement in port area considering temperature field

Abstract

To investigate the rutting of the full depth asphalt pavement in the port area, finite element software is used to establish a temperature field model. The vertical deformation of the pavement structure is calculated under five axial load level. Numerical analysis results show that for the proposed pavement structure, vertical deformation is more obvious on the upper layer of the pavement. And it is mainly reflected in the positive deformation of the center of the wheel gap and the negative deformation of the tire centre. In the pavement structure, the middle layer contributes the most to rutting, and the methods for reducing rutting can be explored for this layer of material. The magnitude of the axle load has a great influence on the rut, and the road at the P 1 level in the port area is more suitable for full depth asphalt pavement. During the period of 220,000 to 400,000 axle loads, the increase in rut deformation is the largest, and the prevention of rut problems on the road can be carried out at this stage.