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Title: Density, temperature and the unconfined compressive strength of polar snow
Authors: Kovacs, Austin.
Keywords: Snow
Snow strength
Snow cover
Compressive strength
Thermal properties
Mathematical analysis
Mathematical models
Publisher: Cold Regions Research and Engineering Laboratory (U.S.)
Engineer Research and Development Center (U.S.)
Series/Report no.: Special report (Cold Regions Research and Engineering Laboratory (U.S.)) ; 115.
Description: Technical report
Abstract: The relationships between several empirical and theoretical methods of determining the unconfined compressive strength of polar snow from depth density and temperature profiles are discussed and graphically compared. Two unconfined compressive strength equations are proposed for snow at -10°C. The formulas take into consideration the decided changes in slope of the Young's and shear modulus curves at a density of 0.5 g/cm^3 for Greenland snow. The slope changes signify that at this density a structural and, therefore, a strength change occur. Analysis of existing test data confirms this reasoning.
Rights: Approved for public release; distribution is unlimited.
Appears in Collections:Special Report

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