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Permanent link (DOI): https://doi.org/10.7939/R3KH0F301

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Ground sampling program at the CANLEX test sites Open Access

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Author or creator
Wride, C. E.
Hofmann, B. A.
Sego, D. C.
Plewes, H. D.
Konrad, J. M.
Biggar, K. W.
Robertson, P. K.
Manahan, P. A.
Additional contributors
Subject/Keyword
Ground freezing
Geophysical logging
CANLEX
Void ratio
Sampling
Type of item
Journal Article (Published)
Language
English
Place
Time
Description
Abstract: One of the primary objectives of the Canadian Liquefaction Experiment (CANLEX) project was to develop and evaluate undisturbed sampling techniques as part of the overall goal to focus and coordinate Canadian geotechnical expertise on the topic of soil liquefaction. Six sites were selected by the CANLEX project in an attempt to characterize various deposits of loose sandy soil. The sites consisted of a variety of soil deposits, including hydraulically placed sand deposits associated with the oil sands industry, natural sand deposits in the Fraser River Delta, and hydraulically placed sand deposits associated with the hard-rock mining industry. At each site, a target zone was selected and various methods of ground sampling were performed. These included ground freezing and sampling, fixed piston tube sampling, Christensen double-tube core sampling, large-diameter sampling using the Laval sampler, and sonic (rotary-vibratory) continuous coring. Ground freezing and sampling was performed at all six sites; the other methods were used at only some sites. Geophysical (gamma-gamma) logging was also performed in boreholes near the freeze pipe to independently measure in situ void ratios. This paper describes the techniques used in the ground-freezing and various sampling programs and presents a summary of the results. Comparisons of void ratios measured for various types of samples and using geophysical logging are also made.
Date created
2000
DOI
doi:10.7939/R3KH0F301
License information
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© 2000 NRC Research Press (Canadian Science Publishing). This version of this article is open access and can be downloaded and shared. The original author(s) and source must be cited.
Citation for previous publication
Wride (Fear), C.E., Hofmann, B.A., Sego, D.C., Plewes, H.D., Konrad, J.M., Biggar, K.W., Robertson, P.K., and Monahan, P.A. (2000). Ground sampling program at the CANLEX test sites. Canadian Geotechnical Journal, 37(3), 530–542.
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