Calculation and hydraulic model experiments for the stable weight of rubble-mound considering the overflow and seepage flow

Shota Inoue, Kiyonobu Kasama, Mitsunari Hirasawa, Kouki Zen, Zentaro Furukawa, Yuichi Yahiro

研究成果: 会議への寄与タイプ学会誌査読

1 被引用数 (Scopus)

抄録

When The Tohoku-Pacific Ocean Earthquake occurred on the March 11th, 2011, harbor facilities such as breakwaters and tide embankments suffered serious damages from the Tsunami. The following three mechanisms are considered to be related to the collapse of the breakwater: 1) scouring of the mound due to overflow, 2) the horizontal force originated from the difference of water level between the sea side and the harbor side on the breakwater, and 3) reduction of bearing power of the mound induced by seepage flow. However, the mechanism of the instability of the rubble-mound by overflow and seepage flow induced by tsunami is not fully clarified. In this study, the formula to calculate the stable weight of rubble-mound was proposed in consideration of the overflow and seepage flow, and hydraulic model experiments were conducted on Kamaishi Bay breakwaters as the subject in order to confirm the effectiveness of the proposed formula. Using the results, the stability of the breakwater was evaluated from the geotechnical engineering point of view.

本文言語英語
ページ58-62
ページ数5
DOI
出版ステータス出版済み - 2015
イベント6th Japan-China Geotechnical Symposium, SJGS 2015 - Hokkaido, 日本
継続期間: 8月 31 20159月 1 2015

その他

その他6th Japan-China Geotechnical Symposium, SJGS 2015
国/地域日本
CityHokkaido
Period8/31/159/1/15

!!!All Science Journal Classification (ASJC) codes

  • 地盤工学および土木地質学

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