Author(s): A. Azarnejad; T. O. Brown
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Keywords: No Keywords
Abstract: Strength properties of ice rubble are important parameters in determining the loads due to interactions between offshore structures and unconsolidated ice ridges. It is usually assumed that the ice rubble behaves as a Mohr-Coulomb material for which the failure is defmed by the cohesion and angle of friction. Past research on this matter has resulted in a wide range of data and there are uncertainties regarding the nature of the failure planes in many of these tests. This paper describes the results ofa series ofpunch tests conducted on fresh water ice rubble at the University of Calgary. The tests were conducted in a rectangular perspex tank. The objective was to simulate plane strain mode and observe the failure process. A summary of the collected data is presented and the results regarding the strength properties and the effect ofdifferent parameters such as speed, ice rubble thickness, and aging are discussed.
Year: 1998