Abstract
The new technical standard for port and harbor facilities employs the performance-based design methodology. The selection of the design method is left to the discretion of the designers. The standard design method for the sliding stability of breakwaters is the partial factors method, however, the Monte Carlo Simulation method is also widely used for the evaluation of failure probability of caisson-type breakwaters in view of cumulative sliding displacement. Probabilistic consideration of evaluation of duration of extreme storms is important in the estimation of the cumulative sliding displacement.
The objective of this research is to propose the estimation method of cumulative sliding displacement considering the probabilistic duration of extreme storms. The practical validity of the proposed method is confirmed by using the 32 design condition gathered from all over Japan.