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A Research on Damage Estimation of Moored Floating Structures by Tsunamis in Coastal Sea Areas

Research Project

Project/Area Number 16360442
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Naval and maritime engineering
Research InstitutionNihon University

Principal Investigator

MASUDA Koichi  Nihon University, College of Science and Technology, Professor, 理工学部, 教授 (10120552)

Co-Investigator(Kenkyū-buntansha) CHANG-KYU Rheem  University of Tokyo, IIS, Associate Professor, 生産技術研究所, 助教授 (70272515)
KOBAYASHI Akio  Nihon University, College of Science and Technology, Professor, 理工学部, 教授 (80318360)
KONDO Norio  Nihon University, College of Science and Tech., Assist. Prof., 理工学部, 講師 (90178418)
IKOMA Tomoki  Nihon University, College of Science and Tech., Assist. Prof., 理工学部, 講師 (50302625)
Project Period (FY) 2004 – 2006
Project Status Completed (Fiscal Year 2006)
Budget Amount *help
¥13,300,000 (Direct Cost: ¥13,300,000)
Fiscal Year 2006: ¥1,400,000 (Direct Cost: ¥1,400,000)
Fiscal Year 2005: ¥2,800,000 (Direct Cost: ¥2,800,000)
Fiscal Year 2004: ¥9,100,000 (Direct Cost: ¥9,100,000)
Keywordstsunami / prevention of disasters of coastal zone / Suruga bay / MPS / GIS / DEM / hazard map / 防災 / VOF法
Research Abstract

A numerical prediction system has been developed for analysis of tsunami induced motion of moored and non-moored vessels and boats in harbor and marina, and thereby we have been able to estimate damage or the striking of vessels and pleasure boats by tsunamis. The long wave theory is applied to a numerical simulation method of tsunami propagation for macro area. After that, using numerical results of fluid velocities, numerical simulation of the propagation in a harbor is done. At that time, DEM is introduced to the tsunami simulation program code, accordingly horizontal behavior of vessels and pleasure boats can be predicted.
In addition, the computer program code, which is the two dimensional MPS method, has been developed and used for numerical analysis and estimation of the grounding of vessels or pleasure boats to quays and piers. Using this program code, behaviors of the breaking of mooring tethers, the grounding and capsizal of vessels are investigated near quays. Many model tests were carried out related to motion behaviors of a floating body due to simulated tsunamis in a channel.
The tsunami hazard maps for vessels in harbor is tentatively made corresponding to Shimizu port. Large vessels are moved by tsunamis, and consequently mooring tethers are broken. Such these behaviors and induced forces are fluid velocities are illustrated on the hazard map.

Report

(4 results)
  • 2006 Annual Research Report   Final Research Report Summary
  • 2005 Annual Research Report
  • 2004 Annual Research Report
  • Research Products

    (3 results)

All 2006 2005

All Journal Article (3 results)

  • [Journal Article] 港湾における津波被災対策を目的とした海上ハザードマップに関する基礎的研究-船舶の岸壁への乗り上がり挙動-2006

    • Author(s)
      増田光一, 居駒知樹 他3名
    • Journal Title

      Proceedings of Techno-Ocean 2006/ 19th JASNAOE Ocean Engineering Symposium (CD-ROM)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Annual Research Report 2006 Final Research Report Summary
  • [Journal Article] A Marine Hazard Map for Tsunami Disaster Prevention of a Harbor -Consideration of the running on wharfs of ships-2006

    • Author(s)
      Koichi Masuda
    • Journal Title

      Proceedings of Techno-Ocean 2006/ 19th JASNAOE Ocean Engineering Symposium (CD-ROM)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] 浅海域に設置された浮体式構造物の津波作用下の運動及び係留索張力の実用数値解析法と応答特性に関する研究2005

    • Author(s)
      増田光一, 居駒知樹, 内田麻木
    • Journal Title

      日本建築学会構造系論文集 第589号

      Pages: 195-201

    • NAID

      110004839666

    • Related Report
      2005 Annual Research Report

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Published: 2004-04-01   Modified: 2016-04-21  

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