Seismic reliability analysis of triangular wedge with plane sliding rock slope stability by analytical method

Reliability analysis of the rock slope stability has been used as an effective tool to evaluate uncertainty so prevalent in variables and has received considerable attention in the literature. This study investigates the application of the Jointly Distributed Random Variables (JDRV) method for Seismic reliability analysis of the rock slope stability with plane sliding. The selected probabilistic parameters are friction angle of the sliding surface and apparent cohesion and unit weight which are modeled using a truncated normal Probability Density Function (PDF) and earthquake acceleration ratio, which are considered truncated exponential PDF. The parameters related to geometry are regarded as deterministic parameters. The results are compared with the Monte Carlo Simulation (MCS). Comparison of the results of the JDRV and the MCS showed good performance of the proposed method. The sensitivity analysis results using JDRV show that the friction angle of the sliding surface is the most influential parameter in rock slope stability with plane sliding.

Keywords:

Jointly Distributed Random Variables , Monte Carlo Simulation , Plane sliding , Seismic reliability analysis