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- SULIANTO Akhmad Adi
- Interdisciplinary Graduate School of Agriculture and Engineering, University of Miyazaki
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- MURAKAMI Keisuke
- Dept. of Civil and Environmental Engineering, University of Miyazaki
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- TOKUTOMI Yuki
- Graduate School of Civil and Environmental Engineering, University of Miyazaki
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- UENO Kouichi
- Association of General Corporate Juridical Person, Miyazaki forestry Conservancy and Forest Road
抄録
Many cases of structural damage have been reported after Tohoku tsunami earthquake. Among those cases, the failure of breakwater caused by the local scouring on gravel mound due to tsunami overflow can be selected as one of the typical structural damages. This study is intended to clear the characteristics of local scouring on gravel mound under several tsunami overflow conditions. Four cases of discharge and three kinds of gravel diameter were employed to investigate the characteristics of local scouring under tsunami overflow condition. Furthermore, this study proposed a horizontal plate which was introduced to reduce the local scouring. Numerical simulation was also conducted to investigate the flow pattern above the gravel mound and pressure distribution on proposed horizontal plate. This study revealed that the scales of local scouring, its depth and length, depend largely on both overflow discharge and gravel size. Based on the experimental data, this study proposed an equation that can estimate maximum scoured depth under different gravel diameter as well as several overflow conditions. The horizontal plate showed good performance in reducing the scale of local scouring. The length of horizontal plate affects the magnitude of vortices and the maximum scoured depth.
収録刊行物
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- 土木学会論文集B3（海洋開発）
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土木学会論文集B3（海洋開発） 70 (2), I_606-I_611, 2014
公益社団法人 土木学会
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詳細情報 詳細情報について
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- CRID
- 1390001205353895680
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- NII論文ID
- 130004961865
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- ISSN
- 21854688
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可
