Stability Analysis of Geocell-Reinforced Slopes Using the Limit Equilibrium Horizontal Slice Method

2017 ◽  
Vol 17 (9) ◽  
pp. 06017007 ◽  
Author(s):  
Iman Mehdipour ◽  
Mahmoud Ghazavi ◽  
Reza Ziaie Moayed
Keyword(s):  
Stability Analysis ◽  
Limit Equilibrium ◽  
Reinforced Slopes ◽  
Slice Method ◽  
Horizontal Slice ◽  
Horizontal Slice Method

Research on Geosynthetics in Tailings Dam Reinforcement

2011 ◽  
Vol 402 ◽  
pp. 675-679 ◽  
Author(s):  
Lou Yan Shen ◽  
Ke Ping Zhou ◽  
Zuo An Wei ◽  
Yu Long Chen
Keyword(s):  
Displacement Vector ◽  
Limit Equilibrium ◽  
Simulation Method ◽  
Tailings Dam ◽  
Fine Tailings ◽  
Vector Direction ◽  
Slice Method ◽  
Method Show ◽  
Horizontal Slice ◽  
Horizontal Slice Method

With the tailings dam reinforcement project newly built in Yakou as the example and limit equilibrium horizontal slice method as the methodology, this paper has researched the feasibility of applying geosynthetics in fine tailings dam reinforcement. The results from limit equilibrium horizontal slice method show that the stability of reinforced tailings dam with geosynthetics increases by 14~17%; while results from numerical simulation method show that the principal stress vector direction and the principal displacement vector direction of the dam body can be changed to be favorable to the stabilization of dam by using geosynthetics to reinforce the tailings dam.

Improved general slice method of limit equilibrium for slope stability analysis

2021 ◽  
Vol 18 (1) ◽  
pp. 55-64
Author(s):  
Shiguo Xiao ◽  
Tingjun Chen
Keyword(s):  
Linear Programming ◽  
Stability Analysis ◽  
Energy Dissipation ◽  
Slope Stability ◽  
Limit Equilibrium ◽  
Slope Stability Analysis ◽  
Equilibrium Conditions ◽  
Non Linear Programming ◽  
Slip Surfaces ◽  
Slice Method

For traditional slice methods of limit equilibrium used to analyze slope stability, some hypothetical conditions on interslice force are generally introduced to solve the problem. In order to reduce the defect theoretically due to the related hypothesis, more rigorous constraints of interslice force are completely considered in light of static equilibrium conditions and energy dissipation principle of the interface between two adjacent slices. Without hypothesis of interslice force, the slope stability analysis is transformed consistently into a non-linear programming problem to be solved. So, a generally improved solution of slice method of limit equilibrium to slope stability is put forward. In particular, influence of the dilation angle of soil on slope stability can be involved in the method. The proposed method can be utilized for any slopes with arbitrary slip surfaces.

scholarly journals Stability Analysis of Anchored Soil Slope Based on Finite Element Limit Equilibrium Method

2016 ◽  
Vol 2016 ◽  
pp. 1-8
Author(s):  
Rui Zhang ◽  
Jie Zhao ◽  
Guixuan Wang
Keyword(s):  
Finite Element ◽  
Stability Analysis ◽  
Safety Factor ◽  
Slip Surface ◽  
Limit Equilibrium ◽  
Limit Equilibrium Method ◽  
Element Analysis ◽  
Surface Anchoring ◽  
Equilibrium Method ◽  
Slice Method

Under the condition of the plane strain, finite element limit equilibrium method is used to study some key problems of stability analysis for anchored slope. The definition of safe factor in slices method is generalized into FEM. The “true” stress field in the whole structure can be obtained by elastic-plastic finite element analysis. Then, the optimal search for the most dangerous sliding surface with Hooke-Jeeves optimized searching method is introduced. Three cases of stability analysis of natural slope, anchored slope with seepage, and excavation anchored slope are conducted. The differences in safety factor quantity, shape and location of slip surface, anchoring effect among slices method, finite element strength reduction method (SRM), and finite element limit equilibrium method are comparatively analyzed. The results show that the safety factor given by the FEM is greater and the unfavorable slip surface is deeper than that by the slice method. The finite element limit equilibrium method has high calculation accuracy, and to some extent the slice method underestimates the effect of anchor, and the effect of anchor is overrated in the SRM.

Horizontal slice method of analysis

Géotechnique ◽  
2001 ◽  
Vol 51 (10) ◽  
pp. 881-885 ◽  
Author(s):  
M. Shahgholi ◽  
A. Fakher ◽  
C. J. F. P. Jones
Keyword(s):  
Slice Method ◽  
Horizontal Slice ◽  
Horizontal Slice Method
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