Three dimensional slope stability analysis by means of limit equilibrium method

Based on finite element analysis software ANSYS, slope stability analysis is carried out by Elastic limiting equilibrium method proposed in this paper. A series of sliding surface of the slope can be assumed firstly, and then stress field along the sliding surface is analyzed as the slope is in elastic state. The normal and tangential stresses along each sliding surface can be obtained, respectively. Then the safety factor for each slip surface can be calculated, the slip surface which the safety factor is smallest is the most dangerous sliding surface. This method is different from the previous limit equilibrium method. For the previous limit equilibrium method, the normal and tangential stresses along the sliding surface are calculated based on many assumptions. While, the limit equilibrium method proposed in this paper has fewer assumptions and clear physical meaning.

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Slope stability analysis using the limit equilibrium method and two finite element methods

Computers and Geotechnics ◽

10.1016/j.compgeo.2014.10.008 ◽

2015 ◽

Vol 63 ◽

pp. 291-298 ◽

Cited By ~ 66

Author(s):

S.Y. Liu ◽

L.T. Shao ◽

H.J. Li

Keyword(s):

Finite Element ◽

Stability Analysis ◽

Slope Stability ◽

Finite Element Methods ◽

Limit Equilibrium ◽

Limit Equilibrium Method ◽

Slope Stability Analysis ◽

Equilibrium Method

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Development of limit equilibrium method as optimization in slope stability analysis

STRUCTURAL ENGINEERING AND MECHANICS ◽

10.12989/sem.2012.41.3.339 ◽

2012 ◽

Vol 41 (3) ◽

pp. 339-348 ◽

Cited By ~ 8

Author(s):

D. Mendjel ◽

S. Messast

Keyword(s):

Stability Analysis ◽

Slope Stability ◽

Limit Equilibrium ◽

Limit Equilibrium Method ◽

Slope Stability Analysis ◽

Equilibrium Method

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The Block Spring Model for Slope Stability Analysis (BSM)

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.671-674.311 ◽

2013 ◽

Vol 671-674 ◽

pp. 311-314

Author(s):

Jing Ma ◽

Wen Sheng Chen ◽

Zhen Li

Keyword(s):

Stability Analysis ◽

Slope Stability ◽

Limit Equilibrium ◽

Limit Equilibrium Method ◽

Slope Stability Analysis ◽

Spring Model ◽

Equilibrium Method ◽

Proposed Model ◽

Reasonable Result ◽

Reasonable Model

Many methods have been used for slope stability analysis in recent years. Limit equilibrium method is more popular than others, but its model is very simple. This paper gives a more reasonable model and develops a program by VC++ . A reasonable result is obtained with the proposed model.

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Search of the Most Dangerous in Slide Slope Stability Analysis Based on Genetic Algorithm

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.166-169.2535 ◽

2012 ◽

Vol 166-169 ◽

pp. 2535-2538

Author(s):

Ke Wang ◽

Chang Ming Wang ◽

Fang Qi ◽

Cen Cen Niu

Keyword(s):

Genetic Algorithm ◽

Stability Analysis ◽

Slope Stability ◽

Slip Surface ◽

Limit Equilibrium ◽

Evolutionary Process ◽

Limit Equilibrium Method ◽

Slope Stability Analysis ◽

Equilibrium Method ◽

The Stability

The traditional limit equilibrium method in the analysis of slope stability not only exists some subjective empirical hypothesis that can not meet the equilibrium of force and moment, but also ignores the effects of internal stress and strain on the slope stability. Furthermore, in the stability of the slope evaluation, limit equilibrium method relies too much on experience when hypothesizing the slope slip surface. So that it makes deviation on slope analysis and stability evaluation. This paper is based on simplified Bishop method used to establish the model of slope stability analysis. And it used genetic algorithms to solve the minimum safety factor and the most dangerous slip surface of slope. It was the arithmetic which simulates organisms genetic evolutionary process and it avoided the traditional methods falling into the local extreme value point easily and error propagation leading to convergence. The algorithm had advantages of higher accuracy, quick convergence and applicability. It showed that the genetic algorithm is accurate and reliable in the analysis of slope stability.

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