Author(s): T. Masaki; Y. Okubo; H. Honda; N. Otsuka; H. Saeki
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Keywords: No Keywords
Abstract: The uniaxial compressive strength and thickness of ice sheet are one of the main parameters of ice that determines the load on marine structures in ice-filled sea areas. Sea ice has different properties depending on the maritime and weather conditions. The strength of natural sea ice is greatly dispersed because it depends on a number of factors, such as ice temperature, salinity and crystal structure. It is useful for the exploitation of Hokkaido's Okhotsk Sea area to estimate the applicability of formulae and factors on the uniaxial compressive strength which had been developed from ice in other areas of the world. In this study, the authors investigated the properties of the uniaxial compressive strength of ice in the Sea of Okhotsk in Hokkaido, and compared them with the mechanical properties of ice sampled in other sea areas. As a result, we found that the strength of ice in the Okhotsk Sea in Hokkaido is more affected by the density than the salinity, the strength of sea ice in Sakhalin can be estimated from the data of ice sampled in Hokkaido because of the similarity of the properties. Keywords: uniaxial compressive strength of ice, dispersion of ice strength, coefficient of variation of the relative strength.
Year: 1996