基于层间滑移的沥青路面响应分析

Analysis of the response of asphalt pavement considering interface slide

对层间发生相对滑动条件下路面体响应的各分量进行了求解.通过算例明确了层间相对滑动对路面响应各分量的影响,计算结果表明面层与基层间相对滑动对路面受力有较大影响,在设计中应予以考虑;基层与土基间相对滑动对路面的影响不明显.路面体各结构层之间的相对滑动使路面承载力下降,是导致普通公路早期破损的原因之一.

Due to the appearance of pavement crack, rain and snow water will invade the pavement inevitably, which descend the strength of base and destroy the connection between material layers. The solution of pavement response considering interface sliding was developed in this paper. The effect of interface sliding on the pavement response was clarified through calculations. The results show that the interface sliding between surface and base influences the pavement remarkably which should be considered in the design of pavement and the interface sliding between base and subgrade influences the pavement slightly. The interface sliding makes the bearing capability of pavement declined, which is an important reason that leads to the premature distress of asphalt pavement.