Abstract
Monte Carlo simulation is often used for the evaluation of failure probability of breakwaters in view of cumulative sliding displacement. Although wave distribution characteristic in front of breakwater is often assumed to be constant during the design working life of breakwater, recent study points out that wave height tends to increase according to the cumulative sliding displacement of breakwater. This study aims at evaluating the failure probability of breakwater in view of sliding displacement considering wave height increase according to sliding of breakwater. Failure probability considering wave height increase is compared with that without considering wave height increase.