Abstract
A wave absorbing caisson breakwater, which has less construction cost due to smaller cross-sectionthan breakwater covered with wave-dissipating blocks, has been developed for years, is being used asport of breakwater in calm sea. However, the wave absorbing caisson breakwater has not been appliedyet to rough sea, which has greater sea-depth and stronger wave force. In order to develop the waveabsorbing caisson which is applicable to rough sea like offshore area of the Port of Onahama, Fukushima, two-dimensional hydraulic model experiments were carried out and also successful in finding out afeasible cross-section of the wave absorbing caisson. This paper shows the results of two-dimensionalhydraulic model experiments for wave absorbing caisson for rough sea breakwater.
