Stability evaluation on the block reinforcement for Tsunami resilient breakwater

Kiyonobu Kasama, Kouki Zen, Mitsunari Hirasawa

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

In order to improve the stability of breakwater due to overflow and seepage flow under tsunami condition, a series of hydraulic model experiment for the model of Kamaishi Harbor Mouth Breakwaters was conducted in terms of the dimension of block reinforcement such as weight, open ratio and layout pattern. As the result from this study, following conclusions were obtained. 1) This paper proposed a formula to calculate the stable weight of block reinforcement on the breakwater foundation in consideration of the overflow and seepage flow induced by tsunami based on the theoretical force balance among the frictional resistance of block reinforcement, the tractive force of the water flow over the caisson to the block reinforcement and seepage force thorough the breakwater foundation. 2) It is experimentally confirmed that seepage failure of rubble mound on the harbor-side of breakwater firstly occurred and then the damage of breakwater was acceralated after overflow occurred. The proposed formula is effective for evaluating seepage failure and scouring of rubble mound under tsunami condition. 3) The damage of breakwater becomes smallest when the block reinforcements are disposed with the height ratio of 3/4 and the triangulate layout.

本文言語英語
ページ2301-2304
ページ数4
出版ステータス出版済み - 1月 1 2017
イベント19th International Conference on Soil Mechanics and Geotechnical Engineering, ICSMGE 2017 - Seoul, 韓国
継続期間: 9月 17 20179月 22 2017

その他

その他19th International Conference on Soil Mechanics and Geotechnical Engineering, ICSMGE 2017
国/地域韓国
CitySeoul
Period9/17/179/22/17

!!!All Science Journal Classification (ASJC) codes

  • 地盤工学および土木地質学

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