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Permanent link (DOI): https://doi.org/10.7939/R3RV0D135

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Evaluation of the in situ state of Fraser River sand Open Access

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Author or creator
Chillarige, A. R.
Robertson, P. K.
Morgenstern, N.
Christian, H.
Additional contributors
Subject/Keyword
Steady state
Liquefaction
Shear wave velocity
In situ state
Type of item
Journal Article (Published)
Language
English
Place
Time
Description
Abstract: Liquefaction flow slides are recurrent phenomena in the Fraser River delta near Sand Heads. The reasons for these failures an unexplained and remained speculative. An investigation of a liquefaction flow slide that occurred in 1985 in the Fraser River near Sand Heads has been undertaken using steady state concepts. For liquefaction flow slides to occur in sand deposits, the sand must strain soften in undrained shear and the in situ shear stresses must be greater than the available undrained shear strength. Laboratory tests have been performed on reconstituted Fraser River sand samples to establish steady state parameters. Moist tamping methods and water pluviation techniques were used for preparing soil samples in the laboratory. Shear wave velocity measurements were used to evaluate the in situ state of the young, uncemented sand deposits. The in situ state of the young sand deposits near Sand Heads was found to be on the loose side of steady state, consistent with the field observation of instability.
Date created
1997
DOI
doi:10.7939/R3RV0D135
License information
Rights
© 1997 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
Chillarige, A. R., Robertson, P., Morgenstern, N., & Christian, H. (1997). Evaluation of the in situ state of Fraser River sand. Canadian Geotechnical Journal, 34(4), 510-519. DOI: 10.1139/cgj-34-4-510.
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