摘要
提出模拟土工格栅的薄膜单元和模拟结构层间作用的界面单元，利用基于线弹性断裂力学的有限元方法，对土工格栅防止沥青路面开裂的桥联效应进行研究；分析了这种桥联效应对半刚性基层收缩裂缝在沥青面层中扩展的阻止机理，讨论界面接触状态对它的影响；同时，对比分析了水平荷载对裂缝扩展的影响。
The film element modelling geogrids and interfacial element modelling the interaction between layers are put forward. By using FEM based on linear elastic fracture mechanics, the bridge effect of geogrids protecting asphalt pavement from cracking is studied. The mechanism of this bridge effect arresting the spread of shrinkage crack in semi rigid base course through bituminous surface is analyzed, and the influence of interfacial contaction condition on it. The influences of horizontal loads on cracking are analyzed comparatively.
出处
《中国公路学报》
EI
CAS
CSCD
北大核心
1999年第3期27-34,42,共9页
China Journal of Highway and Transport
基金
:国家自然科学基金
