车载作用下半刚性沥青路面破坏的数值分析

Numerical simulation on the vehicle loading destroying semi-rigid asphalt pavement

通过对匀速车载下半刚性沥青路面变形的数值模拟分析,探讨了车载对路面变形的破坏特点,分析发现沥青面层的破坏主要是由于车辆匀速或减速行驶过程中路面内产生大量剪应力的结果,而且最大剪应力一般位于沥青面层的中部,该部位较容易产生破坏。

This paper discussed the characteristics of pavement destroy in vehicle loading through numerical simulation on the vehicle loading destroying semi-rigid asphalt pavenaent, It was found that the destroy of asphalt topping was caused by riding vehicles generating much shear stress, and the max shear stress usually located on the center of asphalt topping, so this position can be easily destroyed.