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Dec 31, 2015
Scouring at the Toe of a Seawall due to Tsunamis
Authors: Hitoshi Nishimura, Akira Watanabe, and Kiyoshi HorikawaAuthor Affiliations
Publication: Coastal Engineering 1978
Abstract
In this paper, the general features and mechanism of scouring at the toe of a seawall due to tsunami invasion are discussed based upon the results of two-dimensional experiments. The effects of the various slopes, bed material, water depth and wave conditions are separately investigated. After some consideration of the scouring mechanism, a critical condition for the occurrence of scouring is given in terms of two important parameters, namely, the rate of return flow from the land and water layer thickness in front of the seawall. These findings lend perspective towards the quantitative prediction of the total amount and pattern of scouring.
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Published In
Coastal Engineering 1978
Pages: 2540 - 2547
Copyright
© 1978 American Society of Civil Engineers.
History
Published online: Dec 31, 2015
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Affiliations
Hitoshi Nishimura
Assoc. Prof., Dept. of Civil Eng., Univ. of Tokyo, Tokyo, Japan.
Akira Watanabe
Assoc. Prof., Dept. of Civil Eng., Univ. of Tokyo, Tokyo, Japan.
Kiyoshi Horikawa
Prof., Dept. of Civil Eng., Univ. of Tokyo, Japan.
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