半円筒状透過壁による衝撃砕波圧低減メカニズムについて

抄録

This study focuses on the shock wave pressures on a wave dissipating caisson with semi-circular hollow projections in front of the wall, both theoretically and experimentally. Through a series of experiments in shallow and deep sea wave conditions, the model of the nonporous semi-circular wall reduces the shock pressure by 20-30% compared with the ordinary caisson of vertical wall and porous type reduces more. Especially in shallow sea wave conditions, the least shock pressure are obtained when the opening ratio is 30%, the value of the shock pressure is approximately 45% of the same on the vertical wall. A theoretical model of the shock pressure proposed for the porous semi-circular wall is verified through the experiments.