STUDY ON PARAMETERS TO EVALUATE IMPACT PROBABILITY OF TSUNAMI SHIP DEBRIS ON SEAWALLS

A seawall is an important structure to protect nuclear power stations against tsunamis. To ensure its structural integrity, the tsunami debris impact possibility and force should be evaluated. Since there is uncertainty in motion of the tsunami debris object, the parameters to evaluate the possibility of debris impact should be clear. The purpose of this study is to identify one of the parameters affecting the debris impact probability. In this study, the situations that the debris floats offshore and is transported by riding on the leading wave edge and collides with the onshore seawall were targeted.