Author(s): Ida Lemstrom; Arttu Polojarvi; Jukka Tuhkuri; Otto Puolakka
Linked Author(s):
Keywords: Sea Ice; Ice-Structure Interaction
Abstract: A series of model-scale experiments on the ice loading process against a wide, inclined structure in shallow water was conducted in the Aalto Ice Tank. Experiments with three different ice strengths were performed. Based on the results of the experiments, this paper studies the bottom loads and the effect of ice strength on the ice loading process and the magnitude of the ice loads. During the experiments, higher loads were measured with the weakest ice than with ice having twice its strength, indicating that the magnitude of the loads is not directly proportional to the strength of the ice sheet. The results of the work showed that the ice loading process consisted of two distinct phases. First, the ice load increased linearly with a rate that was nearly constant for all experiments. After the linearly increasing phase, the loads reached a steady-state phase with an approximately constant load. While the rubble grounded in all experiments, only a small portion of the loading was transmitted to the bottom.
Year: 2022