海洋開発論文集
Online ISSN : 1884-8265
Print ISSN : 0912-7348
ISSN-L : 0912-7348
津波による小型船舶の漂流特性とその衝突力に関する実験的研究
水谷 法美宇佐美 敦浩小池 竜
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ジャーナル フリー

2007 年 23 巻 p. 63-68

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There are high possibilities in the near future that great earthquakes occur and large-scale tsunamis attack Japan. In fishing ports facing on the ocean where a large number of fishing boats are moored, these boats would be littered in the ports, or drifting boats would collide with back-yard-structures, if such a tsunami attacks, like an event actually happened at Hokkaido in 1993. This is one of major concerns for tsunami countermeasures in fishing ports.
To predict and reduce these damages, it is absolutely indispensable to know the behavior of drifting boats and their collision forces. In the present study, hydraulic experiment was performed to investigate behavior of a boat and collision forces, as well as properties of tsunami. Based on a series of experiments, it is revealed that boats tend to be drifted keeping initial angle. Moreover, under higher incident wave conditions, the drifting velocity is influenced by the initial direction of boats than the height of draft.

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© 社団法人 土木学会
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