Author(s): A. M. Cornett; R. Frederking; B. Morse; S. Dumont
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Keywords: No Keywords
Abstract: In recent years, a new type of ice control boom has been developed by the Canadian Coast Guard to improve the formation of a stable ice cover along the SI. Lawrence River. The new boom uses cylindrical steel pontoons in place of the rectangular timbers that have traditionally been used. This paper presents an analysis of the loads measured in ice control booms deployed at three locations during the winters of 1994-95,1995-96 and 1996-97. Maximum anchor cable and section cable loads of up to 1250 kN were recorded. The nature of the loading varies throughout the winter, reflecting the type of ice regime that prevails along the river. Daily maximum loads can be well described by the Gumbel probability distribution. A technique is presented for predicting expected loads over longer time periods.
Year: 1998