Unconfined compression tests on anisotropic frozen soils from Thompson, Manitoba

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ConferencePermafrost. 4th International Conference Proceedings: 17 July 1983, Fairbanks, Alaska, USA
Pages4045; # of pages: 6
SubjectPermafrost; Soils; frozen soils; creep; anisotropy; compression tests; properties of soils; laminated frozen soils; clay; silt; ice lenses; ancient glacial lake agassiz; ground anchor, penetrometer, pressuremeter tests; Sol; sol gele; fluage; anisotropie; essai de compression; caracteristique du sol
AbstractLaminated frozen soils, consisting of alternate horizontal layers of dark brown clay and light brown silt, with ice lenses between the layers, are found in the northern area of ancient glacial Lake Agassiz. Laboratory tests confirmed the results of in situ ground anchor, penetrometer, and pressuremeter tests performed at Thompson, Manitoba, which showed these soils to be stronger in the horizontal direction, parallel to the layers, than in the vertical direction. Undisturbed block samples of these laminated ( varved) frozen soils were obtained and test specimens were prepared at various orientations to the direction of layering. Unconfined compression tests, using both naturally frozen and remolded frozen specimens, have shown the extent of strength anisotropy due to the natural anisotropic soil structure.
Publication date
AffiliationNRC Institute for Research in Construction; National Research Council Canada
Peer reviewedYes
NRC number23066
NPARC number20386482
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Record identifiere4fb42b8-2420-4f5a-b61c-0fea3d772019
Record created2012-07-25
Record modified2016-05-09
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