MECHANISMS OF COASTAL DIKE FAILURE INDUCED BY THE GREAT EAST JAPAN EARTHQUAKE TSUNAMI

Fuminori Kato; Yoshio Suwa; Kunihiro Watanabe; Satoshi Hatogai

doi:10.9753/icce.v33.structures.40

No. 33 (2012), Coastal Structures

No. 33 (2012)

MECHANISMS OF COASTAL DIKE FAILURE INDUCED BY THE GREAT EAST JAPAN EARTHQUAKE TSUNAMI

Coastal Structures

Published 2012-10-25

Fuminori Kato⁺⁻
Yoshio Suwa
Kunihiro Watanabe
Satoshi Hatogai

Fuminori Kato

National Institute for Land and Infrastructure Management

Yoshio Suwa

Kunihiro Watanabe

Satoshi Hatogai

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Keywords

tsunami
coastal dike
scour
failure mechanism
overflow

How to Cite

MECHANISMS OF COASTAL DIKE FAILURE INDUCED BY THE GREAT EAST JAPAN EARTHQUAKE TSUNAMI. (2012). Coastal Engineering Proceedings, 1(33), structures.40. https://doi.org/10.9753/icce.v33.structures.40

Abstract

Based on the results of field surveys, coastal dike failures caused by the Great East Japan Earthquake were classified into eight patterns. The results of hydraulic model experiments related to major failure patterns reinforced the proposed failure processes. In addition, the aggregated length of each failure pattern showed that failure from scouring at the landward toe is the dominant failure pattern.

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References

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Mikami, T., T. Shibayama, M. Esteban, and R. Matsumaru. 2012. Field survey of the 2011 Tohoku Earthquake and Tsunami in Miyagi and Fukushima Prefectures, Coastal Engineering Journal, 54(1), 1250011.http://dx.doi.org/10.1142/S0578563412500118

Nishimura H., and K. Horikawa. 1979. Scouring at the toe of a seawall due to tsunami drawdown, Proceedings of the 26th Coastal Engineering Conference, JSCE, 210-214 (in Japanese)

Noguchi, K., S. Sato, and S. Tanaka. 1997. Large-scale experiments on tsunami overtopping and bed scour around coastal revetment, Proceedings of Coastal Engineering, JSCE, 44, 296-300 (in Japanese).http://dx.doi.org/10.2208/proce1989.44.296

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MECHANISMS OF COASTAL DIKE FAILURE INDUCED BY THE GREAT EAST JAPAN EARTHQUAKE TSUNAMI

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