抄録
A New type caisson structure, which has a horizontal gutter on i'ts side wall perpendicular to the breakwater alighment, can form a pipe for water interchainging beteween in and outer sea. This structure is named Crenellated Breakwater after its small holes on the front wall. In the present paper, hydraulic characteristics of crenellated breakwaters and their effects on water interchange are revealed by the results of model tests in a wave flume and numerical calculations.
