重载交通下的不同沥青路面结构适应性分析

伴随着国家经济的高速发展,道路交通量的不断增加,沥青路面在重载、超限作用下发生早期破坏的现象日益严重。以弹性层状体系理论为依据,采用弹塑性有限元分析方法,利用ABAQUS对沥青路面结构进行三维有限元模拟,结合马鞍山交通情况分析不同沥青路面结构在不同轴重作用下面层及基层的应力应变情况。通过计算和分析,在重载作用下面层表面剪应力、弯沉及基层拉应力受到路面结构变化的影响较大,并得出柔性基层与半刚性基层沥青路面结构在重载条件下适应性,提出适应于重载交通下的沥青路面结构,推荐合理的沥青路面结构层设计参数和结构组合,根据研究结果为重载交通下的沥青路面设计提供参考。

Adaptive Analysis of the Different Asphalt Pavement Structures under the Heavy Traffic

Along with the rapid development of the national economic and the increasing road traffic capacity,the asphalt pavement damaged seriously in the early phenomenon under the action of overloading and overrunning.According to the theory of the elastic layered system,the asphalt pavement structure adopts the elastoplastic finite element analysis method and simulates the three-dimensional finite element by ABAQUS software.In order to analyze the stress and strain situation,the article use the traffic capacity of...