高知港の津波に関する模型実験

Abstract

Tsunami disaster and its prevention as a problem of coastal engineering have recentlybecome important. In this paper, tsunamis in Kochi Harbour are studied experimentallyby the use of a hydraulic model with a tsunami generator of plunger type controlled bya hydraulic servo system.After it is proved that the Chilean Tsunami can be successfully reproduced in themodel basin, behaviours of a design tsunami and regular waves with various periods inKochi Harbour are studied for the present topography and for the case after dredgingand reclamation. The effect of tsunami breakwaters constructed at the entrance of theharbour is also studied form the view point of the behaviours of tsunami in the harbour.