Two-dimentional numerical analysis of fluid force effects on self-floating evacuation facility

Abstract

A number of people were killed by the 2011 Tohoku(Great East-Japan) Earthquake and its induced Tsunami. Evacuation before the arrival of Tsunami is important to survive, however, it might be sometimes difficult for the people who are in a coastal area to escape. To overcome this situation, self-floating evacuation facility has been proposed by Meguro(2011). In this study, two-dimentional spatial distribution of fluid force in Kochi area is analyzed assuming the Nankai Trough massive earthquake and Tsunami. First, Tsunami numerical modeling was conducted and the distribution of hydrodynamic force was calculated. Next, the force that acts on the selffloating evacuation facility was estimated by using the result of Tsunami numerical modeling. As the result, a maximum force acting on the facility was calculated as 567.2 kN.