Creep of Sand-Ice System

by Robert G. Rein, Jr., Research Assoc.; Univ. of Oklahoma, Norman, Okla.,
Cedomir M. Sliepcevich, George Lynn Cross Research Professor of Engineering; Univ. of Oklahoma, Norman, Okla.,
Vidyutkumar V. Hathi, Research Asst.; Univ. of Oklahoma, Norman, Okla.,

Serial Information: Journal of the Geotechnical Engineering Division, 1975, Vol. 101, Issue 2, Pg. 115-128

Document Type: Journal Paper


Unconfined uniaxial creep tests were conducted at —8.5°C on sand-ice samples with an average wet density of 124 pcf (1,986 kg/m³). The samples were 94% water saturated, on the average, prior to freezing. Thus the data represent the behavior of slightly undersaturated frozen sands. Stress-strain data for different durations of loading were obtained by replotting the creep data. Values of the stress characterizing the change in stress-strain relations are confirmed by creep rate-stress data. It is shown that use of a single continuous stress function to represent stress-strain data in models must be limited to either stresses greater than, or less than, the limiting long-term strength. A single continuous stress function cannot represent realistically the entire stress range.

Subject Headings: Stress strain relations | Creep | Sandy soils | Frozen soils | Soil analysis | Density (material) | Water sampling | Freezing

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