THREE-DIMENSIONAL NUMERICAL ANALYSIS ON RUNUP TSUNAMI DEFORMATION AROUND CONTAINERS ON AN APRON AND TSUNAMI-INDUCED WAVE PRESSURE ACTING ON THE CONTAINERS

摘要

Many drifting debris resulted from a series of devastating tsunamis triggered by the Sumatra-Andaman earthquake. In recent years, a huge demand for container ships leads to the increase in containers piled up on an apron. Once such a huge tsunami strikes a port area, it is possible that drifting containers cause severe destructions of port facilities. In this study, runup tsunami deformation around containers fixed on an apron is investigated with a three-dimensional numerical simulation. It is consequently revealed that an upper limit of maximum wave pressure acting on the containers due to a runup tsunami wave is evaluated with maximum runup height in front of the containers, assuming a hydrostatic condition.