Reliability back analysis of shear strength parameters of landslide considering mutual-correlation between parameters

被引：5
作者：
Zhao L.-H. [1 ]
Zuo S. [1 ]
Chen J.-Y. [1 ,2 ]
Wang Z.-B. [3 ]
机构：
[1] School of Civil Engineering, Central South University, Changsha, 410075, Hunan
[2] School of Railway Tracks and Transportation, East China Jiaotong University, Nanchang, 330000, Jiangxi
[3] School of Civil Engineering, Hunan University of Science and Technology, Xiangtan, 411201, Hunan
来源：
Huanan Ligong Daxue Xuebao/Journal of South China University of Technology (Natural Science) | 2016年 / 44卷 / 06期
基金：
中国国家自然科学基金;
关键词：
Back analysis; Correlation; Landslide; Reliability theory; Shear strength parameter; Upper bound limit analysis;
D O I：
10.3969/j.issn.1000-565X.2016.06.019
中图分类号：
学科分类号：
摘要：
As the traditional deterministic back analysis methods fail to consider the influence of randomness and uncertainty of geotechnical parameters on the slope stability, a new parameter back analysis method with simplicity and practicality, which combines the upper bound method of limit analysis with the reliability theory, is proposed. Then, the feasibility and effectiveness of the proposed method are verified through an engineering application case. The results show that the proposed method not only takes into account the uncertainties and instability of the geotechnical parameters but also helps to implement the back calculation of the shear strength parameters of a sliding surface. Meanwhile, the effects of the correlation of shear strength parameters on the back analysis results and the reliability are analyzed, finding that ignoring the mutual-correlation between parameters may lead to a conservative reliability index. © 2016, Editorial Department, Journal of South China University of Technology. All right reserved.
引用
收藏
页码：121 / 128
页数：7
相关论文
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