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文章针对沥青混凝土路面在不同超载车辆作用下,在路面结构中不同层位铺设不同模量的土工格栅,分别进行了数值模拟计算。分析了车辆荷载对沥青路面结构应力和位移的影响以及铺设土工格栅后对不同层位应力和位移的改变情况。结果表明:路面结构层的正应力和位移都随轴载的增加而增长;通过在沥青路面结构合理层位铺设合适模量的土工格栅能有效地降低结构层中的应力和位移,减小超载对沥青路面造成的破坏作用,文章结论对实际应用有指导意义。
In this paper, aiming at the asphalt pavement under the action of different overloaded vehicles, the different layers of geogrids are laid in different layers in the pavement structure, and the numerical simulation is carried out respectively. The influence of vehicle load on the stress and displacement of asphalt pavement structure and the change of stress and displacement of different layers after laying geogrid are analyzed. The results show that the normal stress and displacement of the pavement structure layer increase with the increase of the axle load. By laying the geogrid with appropriate modulus on the reasonable layer of asphalt pavement structure, the stress and displacement in the structural layer can be effectively reduced, Overloading on the asphalt pavement caused by the damaging effect of the conclusions of the article is of practical significance.