地震作用下土质边坡的动响应有限元分析

Finite Element Analysis of Dynamic Response on Soil Slope Affected by Earthquake

随着中国国民经济的不断提高,水利、公路、桥梁、隧洞等工程建设中关于边坡安全稳定性问题非常突出,文章在基于地震影响下边坡稳定性的研究现状为理论基础,选取代表性边坡,采用有限差分法,建立FLAC3D三维数值模型进行仿真模拟,计算并分析地震作用对该土质边坡稳定性的影响及其破坏机理,研究其动力响应规律,所得计算成果对设计指导具有一定的参考意义。

With constant increasing of national economy in China,the problems about slope safety and stability are very outstanding in the project construction of water conservancy,highway,bridge and tunnel. Taking current study situation of slope stability affected by earthquake as the theory basis,this paper selected representative slope and adopt finite difference method to establish FLAC3 D three-dimensional model to conduct FEM simulation test,to calculate and analyze the earthquake effect on soil slope stability and its failure mechanism,to research its dynamic response law,and the results obtained are significative and instructive in some extent to guide the design.