Detached breakwaters effects on tsunamis around coastal dykes

Takahito Mikami*, Mizuho Kinoshita, Shunya Matsuba, Shun Watanabe, Tomoya Shibayama

*この研究の対応する著者

研究成果: Conference article査読

4 被引用数 (Scopus)

抄録

The Japanese coastal areas have a lot of different types of coastal structures with different purposes, and it is important to understand each structure's effects on tsunami. In the present paper, the authors focused on detached breakwaters effects on tsunami flow around coastal dykes with a field data investigation and laboratory experiments using a tsunami basin. The field data obtained from the 2011 Tohoku Earthquake and Tsunami showed that tsunami flow was not uniform along a coastal dyke with the specific arrangement of detached breakwaters. The laboratory experiments performed in a tsunami basin showed that a detached breakwater with a small detached breakwater parameter (distance from the shoreline/length of the opening) had a tsunami mitigation effect along the shoreline just behind the main body of the breakwater, but did not have a tsunami mitigation effect along the shoreline just behind the opening. The results obtained from the laboratory experiments agreed with the field data of the 2011 tsunami.

本文言語English
ページ(範囲)422-427
ページ数6
ジャーナルProcedia Engineering
116
1
DOI
出版ステータスPublished - 2015
イベント5th International Conference on Asian and Pacific Coasts, APAC 2009 - Singapore, Singapore
継続期間: 2009 10 132009 10 16

ASJC Scopus subject areas

  • 工学(全般)

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