In this study, the authors proposed the ice load estimation methods for LNG jetty design in the southern coast of Sakhalin Island by building scenarios of ice forces exerted on the structures, e.g. i) driving ice force with geographical features considered, ii) ice force with jamming effects considered, iii) ice force with jamming effects and non-simultaneous ice failure considered, and iv) ice force with no jamming. The possibility of ice jamming cannot be ignored when consideration is given to the geometrical configuration of the close proximity of the jetty supports. However, using the mechanisms that consider the failure of ice around a single support, it has been demonstrated that the predicted ice loads are larger than those resulting from ice jamming occurring between a series of closely spaced supports.

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