沥青层状路面应力和位移场的线性及非线性分析  

LINEAR AND NON-LINERAR ANALYSIS OF STRESS AND DISPLACEMENT FIELD IN ASPHALT LAYERED PAVEMENT

作　　者：岳强[1] 刘福胜[1] 张昊[2] 戴景军[1] 

机构地区：[1]山东农业大学水利土木学院,泰安271018 [2]交通部公路科学研究院,北京100088

出　　处：《固体力学学报》2008年第S1期64-69,共6页Chinese Journal of Solid Mechanics

基　　金：山东农业大学青年科技创新基金资助(NO.23609)

摘　　要：通过层状材料基本解与边界元方法相结合,建立柔性层状路面边值问题的边界积分方程,方程中不含有在层状材料交界面上的积分,对于核函数中出现的奇异积分做了解答,提出沥青层状路面的应力和位移的边界元分析方法。可求解任意形状分布的各种荷载作用下沥青层状路面线弹性状态下的应力和位移;考虑各结构层非线性性能,计算分析沥青层状路面的非线性工作性状。算例分析表明:本文建议的方法可以获得较高的计算精度。强调了在超载条件下对沥青面层的剪应力进行验算的必要性。The fundamental solutions of layered elastic solids and the boundary element method coupling, the boundary integral equation is established for the boundary value problem of the asphalt layered pavement, and does not include interface integral. The singular integral appearing in the kernel function has made the explanation. The boundary element method for the asphalt layered pavement is presented. The method may solve the stress and the displacement of the asphalt layered pavement under various loads distributed in arbitrary shape considering the linear elastic properties. The non-linear work character is analyzed considering the nonlinear properties of the asphalt layered pavement. It is shown that the present method is efficient for the stress and displacement in the asphalt layered pavement. It is necessary that the asphalt pavement's shearing stress would be checked under the heavy load condition.

关 键 词：沥青层状路面 边界元法 层状材料基本解 线性分析 非线性分析 

分 类 号：U416.217[交通运输工程—道路与铁道工程]