CATASTROPHE EVALUATION OF LANDSLIDE INSTABILITY

摘要

The slope movement is a complex process related to landslide stability and huge surge. With respect to physical, structural and environmental condition of landslide, the limiting equilibrium method based Monte-Carlo reliability calculation was applied to analyze the stability of landslide under rain and earthquake, and the empirical formula was employed to evaluate consequences induced by surge wave. In the case of understanding degree of catastrophe and grade of risk, according to evaluation results, engineering treatments were proposed and the catastrophe evaluation of landslide instability system was established. The application to an example demonstrates the feasibility and practicability of risk evaluation-consequence evaluation-treatment evaluation system, thus the case can provide reference to study on catastrophe evaluation of slope instability.