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提出了一种车辆一路面相互作用的压实-包络模型,以探讨软路面有效不平度形成的机理。该模型包括车辆-路面静压实模型、车辆-路面动压实动力学模型和轮胎-路面印迹包络模型。其中动压实模型考虑了土壤压实的不可恢复性以及车轮-路面相互作用的变界面特点。本文应用上述模型计算了多工况下软路面原始不平度、有效不平度间的关系,计算结果与试验结果基本吻合。
A compaction-envelope model of vehicle-road interaction is proposed to explore the mechanism of effective roughness formation on soft pavement. The model includes vehicle-pavement static compaction model, vehicle-pavement dynamic compaction dynamics model and tire-pavement imprinting envelope model. Among them, the dynamic compaction model considers the non-recoverability of soil compaction and the variable interfacial characteristics of wheel-road interaction. In this paper, the above model is used to calculate the relationship between the initial roughness and the effective roughness of soft pavement under multi-working conditions. The calculated results are in good agreement with the experimental results.