Abstract

Seawalls constructed in rough sea areas are exposed to huge wave forces especially having a steep slope sea bottom in front of the structures. Hydraulic model experiments were conducted in a wave flume in order to investigate the characteristics of wave forces and wave overtopping for seawalls. Wave forces on seawalls constructed in deep water area can be estimated by Goda formula, while in shallow water area having a steep slope in front of the structure are often subjected to impulsive breaking wave force much larger than the force calculated by Goda formula. Wave overtopping quantity for the front wall can be estimated by Takayama formula, while the overtopping quantity for the rear parapet is proportional to that for front wall.

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