Confined and unconfined compression tests on frozen sands

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ConferenceRoger J.E. Brown Memorial Volume. Proceedings Fourth Canadian Permafrost Conf.: 02 March 1981,
Pages387393; # of pages: 7
SubjectPermafrost; Soils; frozen soils; mechanical properties; underground construction; laboratory tests; mechanical properties; permafrost; compressive strength; temperature effects; strain rate effects; strength measurement; strain at failure; deformation behaviour
AbstractThe design of foundations in permafrost, excavation of frozen ground, and artificial freezing of ground to provide temporary support during construction of tunnels and other underground structures require understanding of the mechanical properties of frozen soils. This paper describes the equipment and procedures developed by the authors to determine the compressive strength of artificially frozen sands under confined and unconfined conditions at different temperatures and strain rates. A comparison of the results obtained under various conditions is made to assess the effects of testing conditions on the strength, strain at failure, and deformation behaviour of frozen sand. This comparison should assist in the standardization of laboratory testing procedures for the determination of the mechanical properties of frozen soils.
Publication date
AffiliationNRC Institute for Research in Construction; National Research Council Canada
Peer reviewedYes
NRC number20768
NPARC number20378858
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Record identifierbf99f7b0-ee9d-4f39-ae6f-ccfddd9dcf75
Record created2012-07-24
Record modified2016-05-09
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