Computation of the safety factor for slope stability using discontinuous deformation analysis and the vector sum method

被引：45

作者：

Fu, Xiaodong ^{[1
]}

Sheng, Qian ^{[1
,2
]}

Zhang, Yonghui ^{[1
]}

Chen, Jian ^{[1
]}

Zhang, Shankai ^{[1
]}

Zhang, Zhenping ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Hubei, Peoples R China

[2] Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China

来源：

COMPUTERS AND GEOTECHNICS | 2017年 / 92卷

基金：

中国国家自然科学基金;

关键词：

Slope; Discontinuous deformation analysis (DDA); Vector sum method; Safety factor; Sliding direction; Force projection; JOINTED ROCK MASSES; ANALYSIS DDA METHOD; NUMERICAL MANIFOLD; TIME INTEGRATION; LARGE ROTATION; 3-D DDA; LANDSLIDE; DISPLACEMENT; EXTENSIONS; SIMULATION;

D O I：

10.1016/j.compgeo.2017.07.026

中图分类号：

TP39 [计算机的应用];

学科分类号：

081203 ; 0835 ;

摘要：

This study introduces the vector sum method into discontinuum-based methods by considering the sliding vector and the stress state of the discrete block system. The sliding direction computation and force projection in the new approach are detailed, and the safety factor is solved by explicit equations. The vector sum method is implemented in the discontinuous deformation analysis (DDA) program and is used to compute the safety factors for two numerical examples. A comparison of the solutions obtained with the theoretical analysis and limit equilibrium analysis demonstrates that the new method is suitable for calculating the safety factor of a slope. (C) 2017 Elsevier Ltd. All rights reserved.

引用

页码：68 / 76

页数：9

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