Numerical Simulation on Tsunami Mitigation due to Ohtanabe Fishing Ports in Fudai of Iwate Prefecture

• OGASAWARA Toshinori

  Iwate University

• IWAMA Shyunji

  Iwate University

• SAKAI Shigeki

  Iwate University

Bibliographic Information

Other Title

• 岩手県普代村における太田名部漁港施設の津波減衰効果に関する数値解析
• イワテケン フダイムラ ニ オケル オオタメイブ ギョコウ シセツ ノ ツナミ ゲンスイ コウカ ニ カンスル スウチ カイセキ

Abstract

In the Great East Japan Earthquake, we clarified that Ohtanabe fishing ports have fully function as tsunami mitigation using tsunami simulation. The process in which tsunami develops or propagates is very different depending on the presence or absence of the fishing ports. Especially, if there were not the fishing ports, the tsunami height increases more than 60% at the front of Ohtanabe seawall and the inundation height increases twice at the area inside the seawall. Furthermore, there will be also strongly possibility that the large amount of water is stored within the seawall for a long stretch of time. Therefore, we learned from the disaster that a multilayered defense system should be built to minimize damage in the event of a disaster that overwhelms disaster prevention infrastructures.

Journal

• Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering)

  Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering) 70 (2), I_301-I_305, 2014

  Japan Society of Civil Engineers

Keywords

• tsunami
• breakewater
• numerical simulation
• tsunami dike

Details

• CRID: 1390282680295772288
• NII Article ID: 130004706879
• NII Book ID: AA12508551
• DOI: 10.2208/kaigan.70.i_301
• ISSN: 18838944
• ISSN: 18842399
• NDL BIB ID: 025931430
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I025931430
• Text Lang: ja
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed