抄録
Large-scale model experiments on tsunami hydrodynamic load on a vertical tide wall were carried out, in order to investigate characteristics and scale effects of tsunami hydrodynamic load. Experimental results showed that impact pressures with very short duration were measured, which were highly localized in space and time, just after the tsunami fronts with air-water mixing conditions impacted the tide wall. After that, complicated vertical pressure profiles were observed, in which there were subatmospheric pressure and local maximum pressures. The vertical pressure profiles became hydrostatic profiles in a few seconds after the tsunamis impacted the tide wall, and the inundation depths estimated from the pressure profiles agreed with those measured upward side of the tide wall.
