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为了优化路面结构设计,合理匹配路面结构层,提出了基于破坏接近度的路面结构平衡优化设计方法。结合某等级路路面结构和受力特点,构建了三维模型,采用Abaqus有限元分析软件,对道路路面结构在车辆荷载作用下的位移、应力、应变和塑性响应进行了分析,并计算了路面各结构层、路基处治层的破坏接近度,对比分析了破坏接近度与疲劳寿命预估、层间刚度比。结果表明基于破坏接近度的路面结构平衡优化设计方法能够很好地反映荷载作用下路面结构的平衡性。
In order to optimize the pavement structure design and match the pavement structure layer rationally, a balanced optimization design method of pavement structure based on sabotage proximity is proposed. Combined with the pavement structure and stress characteristics of a certain grade road, a three-dimensional model was constructed and the displacement, stress, strain and plastic response of the pavement structure under vehicle load were analyzed by using Abaqus finite element analysis software. Structure layer and subgrade treatment layer, the failure proximity and fatigue life prediction and interlayer stiffness ratio are compared and analyzed. The results show that the balanced design method of pavement structure based on damage proximity can well reflect the balance of pavement structure under load.