Building Database of Tsunami Damage Prediction and Tsunami Protection Measures of Mooring Vessels at a Wharf

2021 Fiscal Year Final Research Report

• Project/Area Number: 17H04975
• Research Category: Grant-in-Aid for Young Scientists (A)
• Allocation Type: Single-year Grants
• Research Field: Naval and maritime engineering
• Research Institution: Tokyo University of Marine Science and Technology
• Principal Investigator: Masuda Mitsuhiro 東京海洋大学, 学術研究院, 准教授 (00586191)
• Project Period (FY): 2017-04-01 – 2021-03-31
• Keywords: 津波防災 / 船舶 / 津波被害予測データベース / 津波防災対策データベース / MPS法

Outline of Final Research Achievements

When a tsunami attacks a port, vessels moored at wharves get severe damage, such as breaking mooring lines and landing on a wharf. In this study, tsunami damage to vessels moored at wharves was evaluated, and damage prevention measures were proposed. First, the ports where the possibility of a tsunami attack and the mooring status of vessels in the ports were investigated. Then, the numerical simulation method was prepared. The numerical simulation results were compared with the experimental results, and the usefulness was confirmed. The status of tsunami damage to each vessel was investigated. The status of tsunami damage to each vessel was investigated. The tsunami prevention measures for these damages were proposed, and their usefulness was evaluated. Finally, the tsunami hazard database and the tsunami prevention measures database for vessels moored at wharves were constructed.

Free Research Field

船舶海洋工学

Academic Significance and Societal Importance of the Research Achievements

我が国が東日本太平洋沖地震津波によって甚大な被害を受けたことは記憶に新しい。さらに現在も南海トラフ大地震津波がいつ発生してもおかしくない状況にある。本研究は津波による岸壁係留船舶の津波被害の防災・減災に寄与するものである。さらに、本研究は、津波被害の予測や防災対策の提案だけでなく、高潮や台風といった近年多発している水害による被害の予測や防災対策の提案、錨泊船舶の波浪中応答など、広く応用できる可能性を有している。本研究によって船舶の防災・減災対策の研究の基盤を確立し、大きく前進させることができたと考えられる。