Sensitivity Assessment of Seismic Slope Factor of Safety to Slope Parameters Using Pseudo-static Analysis

Abstract

Recently, earthquakes have occurred in Korea, raising questions about the stability of existing slopes. In order to simplify the evaluation criteria of the slopes, the stabilization analysis of the slopes of each area is used to study what conditions of the ground are mainly affected by the earthquake, and the correlation and importance of the variables are classified into priority. It is necessary to adopt amnesty for evaluation. Since the soil layer thickness is an important variable in the evaluation of stability, it is appropriate to evaluate the soil layer thickness and slope height for the slab and embankment respectively. It is considered appropriate to evaluate slope angle and slope of bedrock slope and slope angle criterion based on soil layer thickness and slope height, respectively. In case of slope, the thickness of soil layer, inclination of slope, inclination of bedrock, physical properties of soil, etc. Have a complex influence, and evaluation of stability with one specific variable involves considerable uncertainty. In this study, the slope angle and soil layer thickness were divided into two types, slope and slope. As a result, the parameters affecting the safety factor of the slope were bedrock slope, slope height, soil layer thickness, etc. Especially, slope thickness was important variable in slope angle and bedrock slope was more correlated than slope angle. Since the thickness of the soil layer is important, it is considered appropriate to evaluate the slope and slope of the soil layer and the slope height. In the idealized slope, slope angle was more correlated than soil layer thickness.