Abstract
To mitigate tsunami disasters, it is important to prepare for the tsunami overflow. In this study, wave flume experiments and numerical calculations were conducted to examine the characteristics of tsunamis overflowing parapets.
The results of the experiments were 1) the maximum water surface elevation in front of the parapet was almost equal to the incident tsunami wave height, and 2)when the tsunami wave height was 2. 2times higher than the crown height of the parapet, the ratio of the measured water particle velocity to the analytical one was maximum. And the calculation results showed that the slope gradient of the revetment did not have a significant influence on the overflow depth.
