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Title: An approach to the consolidation of snow
Authors: Feldt, E. D.
Ballard, Geoffrey E. H. (Geoffrey Edwin Hall), 1932-2008
Keywords: Snow
Snow cover
Snow consolidation
Snow density
Snow mechanics
Theoretical analysis
Mathematical analysis
Mathematical models
Publisher: Cold Regions Research and Engineering Laboratory (U.S.)
Engineer Research and Development Center (U.S.)
Series/Report no.: Research report (Cold Regions Research and Engineering Laboratory (U.S.)) ; 181.
Description: Research Report
Abstract: A consolidation theory is developed for an age-hardened snow under uniaxial stress in the porosity range of 35 to 55% by considering one mechanism, viz., viscous flow of interparticle bonds. For a uniaxial stress σ, the differential equation for porosity 𝐧 in terms of time 𝐭 is shown to be 1/(1-𝐧) 𝐝𝐧/𝐝𝐭 = 𝐯σ𝐧/η (1-𝐚𝐧) where 𝐚 and 𝐯 are structural parameters and η is the coefficient of viscosity of ice. Comparison of this equation and the integrated form with existing data predicts consistent and reasonable values for 𝐚. The predicted values of η/𝐯 range from 10^-2 to 10^2 times the published value for η, which may indicate that 𝐯, and hence the consolidation rate, is greatly affected by the diagenetic history of the snow and the conditions of experimentation.
Appears in Collections:CRREL Research Report

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