Author(s): S. Kioka; Y. Yasunaga; H. Saeki; H. Nishimaki
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Abstract: Ice scouring is a phenomenon which occurs when sea ice moves in contact with seabed. It has been reported to have caused damage to communication cables and water intake pipelines. Therefore, it will be very important to understand its mechanisms in order to design the safety buried structures against “ice scouring”. In our previous researches, we concluded that local fluctuations in ice forces in the horizontal direction depended on the slope at the corresponding point on the scour curve, and in many cases, ice was tend to move upward. We have developed the rational experimental device system as compared to previous device system. Under the renewal conditions, we conducted a lot of test series, and we revealed relationships between ice forces and behavior of ice, variations of its behavior due to varies condition (attack angle, travelling velocity). And we also revealed the probability distribution of some random variable under the same experimental condition.
Year: 2000