STUDY ON DISPLACEMENT OF AN INLAND STRUCTURE DUE TO TSUNAMIS AND LOCAL SCOURING AND ITS COUNTERMEASTURES

• NAKAMURA Tomoaki

  名古屋大学 大学院工学研究科社会基盤工学専攻

• NEZASA Yuta

  東邦ガス株式会社 供給管理部

• MIZUTANI Norimi

  名古屋大学 大学院工学研究科社会基盤工学専攻

Bibliographic Information

Other Title

• 津波の作用と洗掘の発生に伴う陸上構造物の移動とその対策法に関する研究

Abstract

 The displacement of an inland movable structure induced by run-up tsunamis and local scouring is investigated using a three-dimensional coupled fluid-structure-sediment interaction model. Numerical results show that appropriate paratemeters of the sand substrate can improve the predictive capability of the model in terms of the distribution of the final topographic change and the behavior of the structure. Furthermore, it is revealed that reaction force acting on the structure is affected by not only the tsunamis but also the local scouring, suggesting that it is essential to take into account the effects of local scouring when evaluating the stability of movable structures. In addition, it is found that sheet piles in the sand substrate at the longshore side of the structure would be effective to improve the stability of the structure.

Journal

• Journal of Japan Society of Civil Engineers, Ser. B3 (Ocean Engineering)

  Journal of Japan Society of Civil Engineers, Ser. B3 (Ocean Engineering) 70 (2), I_331-I_336, 2014

  Japan Society of Civil Engineers

Keywords

• tsunami
• local scouring
• inland structure
• fluid-structure-sediment interaction

Details

• CRID: 1390282680330516224
• NII Article ID: 130004697302
• DOI: 10.2208/jscejoe.70.i_331
• ISSN: 21854688
• Text Lang: ja
• Data Source:
  • JaLC
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed