One Consideration on Performance Verification of Mooring Facility Considering Ship Mooring along the Facility

Abstract

In our previous study, we conducted several surveys on the sea disasters of ships moored along mooring facilities such as jetty, pier, dolphins and so on, during the 2011 Tohoku earthquake and tsunami. A moored large coal carrier encountered beyond 10 meters’ tsunami wave at H-port and suffered a severe damage on the ship and the mooring facility, and mooring line breakages happened in two large oil tankers at O-port and S-port not only during the tsunami attacks but also during the seismic vibrations. In this study, we have tried to investigate a new performance verification of mooring facility with the ship moored along it, considering the interaction between the mooring facility and the ship during earthquake and tsunami, and demonstrated an example of the performance verification for a pier (the water depth; -12m) for a 30,000DWT class cargo ship against the greatest tsunamigenic earthquake scenario along the Nankai Trough.