Local Scour around a Square Structure due to a Runup Tsunami
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- NAKAMURA Tomoaki
- 名古屋大学大学院工学研究科社会基盤工学専攻 日本学術振興会
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- KURAMITSU Yasuki
- 西日本電信電話株式会社
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- 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
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- 遡上津波による陸上構造物周辺の局所洗掘に関する研究
Description
The 2004 Indian Ocean tsunami caused large-scale sediment transport, resulting in substantial scour around a huge number of structures. In this study, tsunami-induced local scour around a land-based structure with a rectangular cross-section on a sand foundation was investigated with a series of hydraulic model experiments and numerical simulations. It was, as a result, revealed that local scour around the seaward corner of the structure could be evaluated with not only flow velocities on the sand foundation but effective stresses near the surface of the sand substrate, that is, flow velocities with a large Shields number resulted in a scour hole around the seaward corner of the structure during restricting force between sand particles fell down due to a decrease in effective stresses inside the sand substrate.
Journal
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- PROCEEDINGS OF COASTAL ENGINEERING, JSCE
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PROCEEDINGS OF COASTAL ENGINEERING, JSCE 54 856-860, 2007
Japan Society of Civil Engineers
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Keywords
Details 詳細情報について
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- CRID
- 1390001204550869760
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- NII Article ID
- 130003808180
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- ISSN
- 18848222
- 09167897
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- Data Source
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- JaLC
- Crossref
- CiNii Articles
- KAKEN
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- Abstract License Flag
- Disallowed