This study is intended mainly to investigate collision force due to a drifted container by run-up tsunami. Laboratory experiments were conducted to investigate behavior of run-up tsunami and drifting container. Moreover, effect of vertical wall to reduce run-up tsunami was observed. Results show that the vertical wall installed at the leading edge of apron can reduce wave forces acting on container, which may lead to reduce drift of containers. This study also conducted numerical simulation of collision of container with concrete column. It is revealed that the present analyzing method is useful in such simulation.

Tsunami-induced wave pressure and tsunami force acting on containers on an apron are investigated with a threedimensional numerical simulation based on MARS (Multi-interface Advection and Reconstruction Solver) as well as hydraulic model experiments for the measurements of runup height on the apron and tsunami force acting on the containers. It is consequently found that the numerical method allows the good estimations of both the runup height on the apron and tsunami force acting on the containers. It is also revealed that the maximum runup height in front of the containers gives the maximum wave pressure on the containers with hydrostatic pressure approximation, however impact pressure on the lower part of the containers may exceed this hydrostatic water pressure.

No abstract