Author(s): Karl-Ulrich Evers; Alexandra Weihrauch
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Keywords: No Keywords
Abstract: In order to increase the safety of platforms in shallow water, ice barriers are designed to take main loads from floating ice sheets. Platforms and equipment protected by ice barriers can be dimensioned and constructed more economically, when ice barriers are present. Several concepts were investigated and for promising concepts ice model tests were carried out in the Large Ice Model Basin of the Hamburgische SchiffbauVersuchsanstalt (HSVA) in order to establish the design ice loads and to prove that the design force for offshore structures can be reduced significantly by using ice barriers. Model tests were conducted in different ice conditions in order to investigate the ice rubble formation process, to evaluate the design alternatives and to establish design loads. The measured ice loads were analysed and compared to loads theoretically derived by use of existing methods. The analysis comprises a statistical evaluation of the ice loads related to site conditions in the North Caspian Sea.
Year: 2004