Characteristics of wave overtopping on gentle slope-type seawalls

摘要

The purpose of this study is to clarify the characteristics of wave overtopping on gentle slope-type seawalls. Therefore the experiments on wave overtopping by irregular waves were carried out for gentle slope-type seawalls. Using the results, the diagrams for the estimation of wave overtopping rate were proposed for the gentle slope-type seawalls with 1:3 and 1:5 slope. And, these diagrams were compared with the diagram for vertical seawall by Goda et al. As the result, by comparing for the vertical seawall from the viewpoint of the wave overtopping prevention, the gentle slope-type seawall clarified the effective range in the relationship between relative water depth and relative crown height of seawall.