Research on Advanced Reliability Design of Composite Breakwaters based on Sliding Distance

Abstract

While the research on the deformation-based reliability design of composite breakwaters has been carried out for many years, sliding phenomena including rocking motion have not been carefully examined. In this study, hydraulic model experiments were conducted in a wave flume to investigate the characteristics of wave forces and sliding phenomena of the breakwater caisson. The difference of static friction coefficient and dynamic one should be considered in order to improve the estimation accuracy. Numerical simulation (CADMAS-SURF) can reproduce the time series of wave forces more precisely compared to the practical model used in the current calculation method, especially in deep water area.