Author(s): B. Ladanyi; R. Saint-Pierre
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Keywords: No Keywords
Abstract: Although several field studies of the elastic and short-term strength properties of sea ice have been described in the recent literature, no practical field method for investigating the creep behavior of sea ice in a more general sense has yet been proposed. One such method has, however, been developed some years ago for insitu testing of creep properties of frozen soils (Ladanyi and Johnston, 1973) and has been used successfully on several permafrost sites in Canada. In order to check the validity of the method for evaluating the mechanical properties of sea ice, a series of dilatometric creep tests was performed in a seasonal Arctic sea ice cover at Igloolik, N. W. T., Canada. The results of these tests show that the proposed method represents a convenient practical means for the in-situ determination of some short and long-term properties of sea ice, such as its modulus of elasticity, its tensile and compressive strength, and its creep parameters. The parameters deduced from these field tests have been found to agree well with those obtained by some other investigators under similar conditions.
Year: 1978