Deterministic and Probabilistic Approach of Seismic Slope Stability Analysis – A State-of-The-Art Review

Abstract

For a slope to be safe, it must always have a factor of safety (FOS) against sliding greater than one. If the slope simply experiences elastic deformation, then only the above condition is applicable. However, in the event of a severe seismic motion, the slope deformation may overtake the elastic limit, resulting in permanent displacements. In such a scenario, the FOS considering static output is irrelevant and have to consider seismicity. As a result, the relevance of the stability of the soil slope under seismic loading conditions is growing in the field of geotechnical engineering. A lot of studies have investigated the stability of a slope under static and seismic stress conditions. This paper reviewed various studies where the seismic loading consideration is exits. The purpose of this paper is to know the existing soil slope stability techniques which utilize several dynamic methods which includes finite elements approach, limit equilibrium approach, strength reduction approach, discrete element approach, Newmark’s approaches etc. The deterministic approach and the probabilistic approach are used to conduct the literature review.