Abstract
Tsunami disasters of floating vessels moored on the quay are complex, such as breaking of the mooring line and then drifting and collision of floatingvessels. There was an examplewhich a mooring tether does not break in the ship moored to the floating pier in the damage of tsunami. It was confirmed in the Miyagi Shiogama port in case of the East Japan great earthquake which occurred on March 11, 2011. In this paper, the objectives are to clarify the effect of reducing mooring tether force in case of that ship is moored to floating pier by using 3D-MPS method and also the advantages of floating pier for fixed mooring quay. In addition, in this paper the authors are discussed the following items: 1) Force of tsunami wave on the pile of floating pier. 2) Response characteristics in various incidence angles.
