Comparison of Maximum Horizontal Wave Force Acting on Perforated Caisson Breakwater with Single and Double Chamber

摘要

Physical experiments were carried out to measure the wave force on the vertical walls of perforated breakwater considering several phases of a wave acting on the breakwater.The maximum horizontal wave force acting on each vertical wall was compared between single and double chamber caisson breakwater.The experimental data in this study showed that the total horizontal wave force for double chamber caisson was 9.6 smaller on average than that for single chamber caisson when the total chamber width was the same for both caissons.Such reduction of the wave force is due to the dissipation of wave energy at the porous middle wall,which is located between the porous front wall and non-porous rear wall.