岩土工程学报Issue(7)：1281-1288,8.DOI:10.11779/CJGE201407012
基于数值流形法的土质边坡动力稳定性分析
Dynamic stability analysis of soil slopes based on numerical manifold method
摘要
Abstract
Due to little researches on dynamic stability of soil slopes by using the numerical manifold method (NMM), NMM is adopted to analyze such a problem. The viscous damping is introduced to dissipate the energy of the system. Through a few numerical examples, the effectiveness of NMM to solve the permanent displacement of a slope is verified. Using the stress field of the slope under dynamic seismic time history, the time history of safety coefficient is obtained, and the most dangerous sliding surface of the slope under seismic time history is searched. The most dangerous sliding surface model is introduced into NMM to obtain the permanent displacement. The results of NMM are compared with those of the Newmark method, and they are similar. This study shows that NMM can effectively slove the dynamic stability problem and simulate the permanent displacement of soil slopes.关键词
数值流形法/边坡动力分析/黏性阻尼/永久位移Key words
numerical manifold method/dynamic analysis of slope/viscous damping/permanent displacement分类
建筑与水利引用本文复制引用
仝宗良,曾伟,李俊杰..基于数值流形法的土质边坡动力稳定性分析[J].岩土工程学报,2014,(7):1281-1288,8.
