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A probabilistic slope stability assessment under seismic conditions was conducted based on the generalized Hoek-Brown criterion. The slopes on the left bank of the Mzymta River were investigated in this study. The failure probabilities were presented for various slope angles. Probabilistic analysis revealed the dependence of Hoek-Brown parameters on safety factor. The results show that the biggest influence factor for slope stability is the geological strength index (GSI), i.e., the safety factor depends on rock mass structures.

This study sought to assess the probabilistic stability of slope analysis under seismic conditions in the middle of the Mzymta River Valley in Russia's Greater Sochi. In probabilistic analysis, almost all input parameters can be assigned a probability distribution; however, the seismic coefficient probability distribution has been difficult to define in previous studies. This study aims to assign a probability distribution to the seismic coefficient based on seismogram acceleration distribution. The study showed that seismogram-based probabilistic analysis is a feasible way to assess slope stability.