基于动荷载仿真的路面结构响应分析

Pavement structural mechanics based on the dynamic load simulation

针对货车动荷载作用下路面结构力学响应及路面设计指标变化规律,应用ABAQUS有限元软件建立相应三维路面结构模型及动荷载模型进行动态模拟,并通过现场试验验证了模型的可靠性,对路表弯沉和各结构层层底应力情况进行计算,分析不同车速、平整度和路面结构参数对路面结构力学响应的影响,得到车速、平整度和路面结构参数对路面力学响应的影响规律,可以为路面结构设计和道路施工养护提供理论指导.

For pavement response and impact analysis of the problem under trucks dynamic load, the corresponding three- dimensional model of the pavement structure and dynamic loads dynamic simulation model with the application of ABA- QUS finite element software were established. The reliability of model was verified through the field test; the deflection and layers stress situations of the road was calculated; and parameters on the mechanical response of pavement structure was analyzed; The speed, flatness, and road load parameters on pavement responses were studied so that it can provide a theoretical guidance for the pavement design and road construction maintenance.