A three-dimensional slope stability analysis method using the upper bound theorem

Author(s):  
Zuyu Chen ◽  
Xiaogang Wang ◽  
C. Haberfield ◽  
Jian-Hua Yin ◽  
Yujie Wang
2014 ◽  
Vol 886 ◽  
pp. 432-435
Author(s):  
Shao Jie Feng ◽  
Shi Guo Sun ◽  
Xue Fang Zhao ◽  
Liang Tan

Considering the features of slope rock mass failure, this paper applies residual thrust method and linear programming theory on the basis of finite element method, to assess safety of each cell of slope rock mass in dangerous zone. According to the slip field method to determine three-dimensional slope slip surface, to deduce three-dimensional stability analysis method based on symmetry breaking, a C++ based 3D-slope program is developed for purposes of three-dimensional slope stability analysis. Finally get the most dangerous landslide geometry and its safety factor, In the paper, combining with the engineering examples, the calculating results are comfortable to the practical failure.


2003 ◽  
Vol 40 (3) ◽  
pp. 675-683 ◽  
Author(s):  
Zuyu Chen ◽  
Hongliang Mi ◽  
Faming Zhang ◽  
Xiaogang Wang

This paper presents a simplified three-dimensional (3D) slope stability analysis method based on the limit equilibrium theory. The assumption involved in this method is of a parallel intercolumn force inclination, similar to Spencer's method in the two-dimensional (2D) area. It allows for the satisfaction of complete overall force equilibrium conditions and the moment equilibrium requirement about the main axis of rotation. The method has been proven to be numerically tractable for many practical problems. By combining this method with the 3D upper bound approaches, it is possible to bracket the accurate solution of a 3D slope stability analysis problem into a small range.Key words: slope stability analysis, three-dimensional analysis, limit equilibrium method, upper bound method.


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