Analysis of the mechanical property about the asphalt concrete pavement above the road-way buried pipe

With the help of the nonlinear finite element software MSC.MARC, the mechanical properties of the asphalt concrete pavement above the road-way buried pipe is numerically analyzed in the plane strain state and based on the hypothesis that the pavement foundation is D-P nonlinear model. It can be different load positions all affect the settlement and the stress of the mechanical properties of the asphalt concrete pavement structure. The bigger the backfill Elastic modulus is, the smaller the pavement surface settlement is. The deeper the pipe is, the bigger the pavement surface settlement is. The bigger the pipe diameter is, the smaller the benching center settlement is. When the load position is away from the symmetry plane, the tensile stress of the pavement surface and the bottom layer is separately increased, and the latter is on the joint of the pavement symmetry plane and the bottom layer.