The Random Set Distinct Element Method (RS-DEM) has been developed and applied in the stability analysis of a rock slope from China in this study. The influence of the discontinuity of joints of rock material on the slope stability is considered, and the sensitivity analyses for different input parameters have been conducted. The uncertainties of the strength parameters of both, rock blocks and discontinuity joints are considered in the reliability analysis model. In this study, the commercial distinct element code UDEC has been used to model the rock material, and the strength reduction method is used to calculate the safety factor of slope.
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