Evaluation of reliability assessment in slope stability analysis

The method of Bishop is one of the most practical approaches in limit equilibrium analysis for slope stability analysis. Three variables such as unit weight, friction angle and cohesion are the soil parameters of this method that must be selected as stochastic variable because of uncertainties of soil. In this research, these parameters are selected stochastic and the effect of them is considered in determining the safety factor in this method. Numerical and analyticalapproaches are used for this purpose and the results are compared to each other. Compassion indicates good performance and close results of the approaches for reliability assessment of slope stability

Keywords:

Reliability assessment , limit equilibrium analysis , stochastic variables , Bishop equilibrium method