Shear moduli and damping ratios of frozen and unfrozen clay using the resonant column test

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TypeArticle
Journal titleCanadian Geotechnical Journal
ISSN0008-3674
Volume33
Issue3
Pages510514; # of pages: 5
AbstractThe resonant-column test method was used in this study to determine the dynamic shear moduli and damping ratios of frozen and unfrozen soil samples. Naturally frozen soil specimens were obtained in-situ during the winter. A series of tests were carried out on the frozen soil specimens in a cold room at ?9°C. The same specimens, after allowing them to thaw, were then tested at room temperature. Test results show that at low-amplitude shear stains the damping ratio of frozen soil specimens is roughly twice that of unfrozen samples. In addition, the dynamic shear modulus for soil specimens while frozen is significantly greater (30 or 50 times) than that of unfrozen specimens. These results provide a basis for explaining an observation that bus-induced vibrations in buildings while the top soil is frozen in winter are about one-half those induced while the soil is not frozen.
Publication date
LanguageEnglish
AffiliationNRC Institute for Research in Construction; National Research Council Canada
Peer reviewedYes
NRC number38848
5903
NPARC number20375738
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Record identifiere53ac10b-c008-4750-bd9e-225ab9d11435
Record created2012-07-23
Record modified2016-05-09
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