Probability Calculation of Rainfall-related Slope Failure

抄録

Railway operators invest in measures to prevent rainfall-related slope failure to secure the safety of train operation. Accordingly, it is essential to evaluate the risk of slope failure by considering the probability and potential cost of such events in order to execute investment effectively. We developed a method of calculating the probability of slope failure caused by intense rainfall to evaluate the risk of slope disaster by applying a risk assessment method. This paper describes the method developed and presents some calculation examples.