NUMERICAL SIMULATION OF SCOURING BEHIND THE SEAWALL CAUSED BY TSUNAMI OVERFLOW WITH ACCURATE ISPH METHOD
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- OIE Takayuki
- Pacific Consultants Co., Ltd.
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- WANG Dong
- Tianjin University
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- TAKATANI Takeshi
- Mizuho Information & Research Institute, Inc.
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- ARAKI Kazuhiro
- Mizuho Information & Research Institute, Inc.
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- LI Shaowu
- Tianjin University
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- GOTO Hitoshi
- Kyoto University
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- ARIKAWA Taro
- CHUO University
Bibliographic Information
- Other Title
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- ISPH法による越流に伴う防潮堤背後の洗掘計算
- ISPHホウ ニ ヨル エツリュウ ニ トモナウ ボウチョウテイ ハイゴ ノ センクツ ケイサン
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Abstract
At The 2011 off the Pacific coast of Tohoku Earthquake, many seawalls were damaged by Tsunami overflow. Some previous studies indicated that if the foundation of structures was scoured, the stability of structures seriously declined, but the relationship between scouring depth and overflow hasn't been well understood and prediction method hasn't also established. In this study, the scouring depth caused by tsunami overflow was calculated by using numerical simulation based on accurate ISPH method and the results were compared with the physical model tests. The results of this study are as follows; 1) There is a high proportional relationship between scouring depth and the overflow depth, 2) The scouring behind the seawall can be reproduced and the maximum scouring depth can be evaluated by accurate ISPH method.
Journal
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- Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering)
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Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering) 71 (2), I_253-I_258, 2015
Japan Society of Civil Engineers
