The given article is devoted to the experimental research on the topic of deformed state of hummocked ice caused by motion of a submarine vessel near its surface. Experiments were carried out in the ice basin. The model of ice cover was made by natural freezing on up to the required depth. Ridge ice hummocks were modeled by freezing stripes of ice of the given thickness into the ice field. Assessment of icebreaking capacity of flexural-gravity waves with using the criterion of ice failure is performed. Modes of motion at which ice breaking was most intensive are detected.
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