Probabilistic Assessment of Slope Stability in Rocky Ground Using the Generalized Hoek-Brown Failure Criterion
K. Kang1, I. K. Fomenko2, J. Wang3, O. V. Nikol'skaya4
1School of Environment and Civil Engineering, Jiangnan University, Wuxi, 214122 P.R. China
2Ordzhonikidze Russian State Geological Prospecting University, Moscow, 117997 Russia
3Institute of Mineral Resources, Chinese Academe of Geological Sciences, Beijing, China
4Institute of Geomechanics and Subsoil Development, National Academy of Sciences of the Kyrgyz Republic, Bishkek, 720055 Kyrgyz Republic
Keywords: Slope, rocky ground, rock mass, stability, failure criterion, scale effect, risks, analysis, assessment
Abstract
The slope stability evaluation using the generalized Hoek-Brown criterion and with regard to the scale effect has been implemented in terms of the Chaarat gold project. Furthermore, the probabilistic assessment and sensitivity analysis are performed. Landslide probabilities are determined, and the slope stability factors are obtained as functions of the slope height and angle. The slope stability estimation procedure synthesizing classical approaches with regard to the scale effect, including GSI and probabilistic analysis is tested in rock ground. Slope stability is mainly governed by variability of the Geological Strength Index related with the scale effect.
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