大規模水理模型実験による津波・高波に対する直立浮上式防波堤の水理特性に関する研究

DOI Web Site
  • 有川 太郎
    (独) 港湾空港技術研究所津波防災研究センター
  • 下迫 健一郎
    (独) 港湾空港技術研究所 海洋・水工部
  • 小林 真
    (株) 大林組 土木技術本部設計第二部
  • 虎石 龍彦
    新日鉄エンジニアリング (株) 海洋・エネルギー事業部
  • 荒井 清
    東亜建設工業 (株) 土木本部設計部
  • 木原 一禎
    三菱重工橋梁エンジニアリング (株) 橋梁技術部

書誌事項

タイトル別名
  • HYDRAULIC CHARACTERISTICS OF BUOYANCY-DRIVEN VERTICAL PILING BREAKWATER FOR TSUNAMI AND WIND WAVE BY LARGE SCALE MODEL TEST

説明

An innovative ‘buoyancy-driven vertical piling breakwater’ is under development to protect harbor facilities behind the breakwater against tsunamis and high waves. This breakwater consists of rows of steel pipe piles and each pile consists of upper and lower steel pipes. Upper steel pipe is normally encased in lower steel pipe which driven into seabed and thus there small gap exists between upper pipes. When tsunami or high wave is predicted, the upper pipes quickly rise up to the water surface driven by the buoyancy of air supplied into the upper pipes.<BR>A few experimental researches have been conducted on the hydraulic characteristics of this type of breakwater with gaps. In this study, hydraulic model experiments and numerical simulations were carried out to investigate the wave transmission through the breakwater and wave pressures acting on the upper pipes. As a result of the study, the breakwater's performance against tsunamis and high waves has been verified.

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