论文部分内容阅读
针对重载车辆,基于有限元法,建立了典型沥青混凝土路面结构的三维有限元分析模型,分析了不同轴载与轴型作用下的沥青路面路表弯沉、面层和基层的层底应力分布状况。结果表明:路表弯沉、面层和基层的层底应力随轴重的增大近似成同比例增大,路表弯沉随轴数的增多而增大,面层层底应力受轴数的影响很小,而基层层底应力受轴数的增多反而有所减小。
According to the finite element method, a three-dimensional finite element analysis model of typical asphalt concrete pavement structure is established for heavy-haul vehicles. The deflection of asphalt pavement surface under different axle load and shaft type is analyzed. Stress distribution. The results show that the deflection of the road surface, the surface stress of the surface layer and the base layer increase with the increase of the shaft weight approximately in the same proportion, the deflection of the road surface increases with the increase of the shaft number, Of the impact is very small, but the grassroots floor stress by the axis of the increase but decreased somewhat.