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TitleFreeze-thaw effect on consolidation properties of fine grained soils from the Mackenzie valley, Canada
AuthorPaudel, B; Wang, B
SourceProceedings of the 63rd Canadian Geotechnical Conference & 6th Candian Permafrost Conference; 2010 p. 992-996
Year2010
Alt SeriesEarth Sciences Sector, Contribution Series 20100039
Meeting63rd Canadian Geotechnical Conference & 6th Candian Permafrost Conference; Calgary, AB; CA; September 12-16, 2010
Documentbook
Lang.English
Mediapaper
File formatpdf
ProvinceNorthwest Territories
NTS106M; 106N; 106O; 107A/03; 107A/04; 107A/05; 107A/06; 107A/11; 107A/12; 107A/13; 107A/14; 107B; 107C; 107D/03; 107D/04; 107D/05; 107D/06; 107D/11; 107D/12; 107D/13; 107D/14
AreaMackenzie Valley
Lat/Long WENS-136.0000 -130.0000 70.0000 67.0000
Subjectssurficial geology/geomorphology; permafrost; freezing ground; ground ice; ground temperatures; hydraulic conductivity; Cenozoic; Quaternary
Illustrationslocation maps; photographs; plots
ProgramEnvironmental Geoscience
AbstractThis paper presents laboratory test results of freeze-thaw effect on consolidation properties of fine grained soils from the Mackenzie valley, Canada. Soil samples were collected from two landslide sites in the Mackenzie valley. The samples were obtained from the bottom of the active layer at about 1 m depth below ground surface. A total of 32 remoulded samples were prepared with varying water contents to reflect the moisture conditions in the active layer and near the permafrost table. The samples were tested for coefficient of consolidation and hydraulic conductivity after 0, 3, 5 and 10 cycles of freezing and thawing. The coefficient of consolidation increased by an order of magnitude and hydraulic conductivity by one to two orders of magnitude after freezing and thawing. These properties continue to increase with the increase of the number of freeze-thaw cycles, but at a much slower rate.
GEOSCAN ID263409