Improvement of Pseudo-static Method for Slope Stability Analysis

作     者：YANG Chang-wei ZHANG Jian-jing FU Xiao ZHU Chuan-bin BI Jun-wei 

作者机构：School of Civil Engineering Key Laboratory of Transportation Tunnel Engineering Ministry of Education Southwest Jiaotong University 

出 版 物：《Journal of Mountain Science》 (山地科学学报（英文）)

年 卷 期：2014年第11卷第3期

页      面：625-633页

核心收录：

学科分类：081803[工学-地质工程] 08[工学] 0818[工学-地质资源与地质工程] 

基　　金：supported in part by National Science Foundation of China (Contract NO. 41030742) Guangxi Science Foundation and the Program for Science & Technology of Henan Province in China (Grant No. 142300410200) 

主　　题：Pseudo-static analysis Slope stability Elastic wave Hilbert-Huang Transform Transfercoefficient slice 

摘      要：traditional In this paper, two drawbacks pseudo-static method （vertical of the slice method） in the slope stability evaluation have been studied. First, the sliding mass is divided into vertical slices according to this method, which is irrational to some extent in the seismic design of slope. Second, only peak ground acceleration （PGA） is considered, and the effects of shaking frequency and duration on slope stability are neglected. And then, based on the theory of elastic wave and the summarized geological model, this paper put forwards an improved method of pseudo-method by using the theory of elastic wave and Hilbert-Huang transform. The improved pseudostatic method gives reasonable considerations to the time-frequency effects of seismic wave and its rationality has been verified by the shaking table test. This method can evaluate the safety of a slope, the happening time and the scale of landslides. At the same time, this method also can improve the high accuracy of the evaluation of the safety of the slope.