Abstract
A tsunami caused by an earthquake off the Pacific coast of Tohoku seriously damaged many coastal structures. It is important to reinforce these structures with the concrete blocks and to give the function of tenacious structures. In case of coastal dikes, the stability of concrete blocks and the damage of coastal dikes are affected by the fluid forces and turning moments acting on concrete blocks armoring on slope just near the crest of dikes in the side of land for overflow in tsunami. In this study, we measured the fluid forces and turning moments acting on the armor concrete block covering coastal dikes for steady overflow. We also looked into the applicability of CADMAS-SURF/3D to estimate these force and moments.
