Ground freezing and sampling of foundation soils at Duncan dam
Abstract: In situ ground freezing to obtain undisturbed samples of a loose sand beneath the Duncan Dam in British Columbia is described. This was the first known use of ground freezing to assist in obtaining samples at depth greater than 10 m in Canada. Once frozen, the sand was cored and brought to...
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1994
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ftunivalberta:oai:era.library.ualberta.ca:a0032c95-39c0-417e-8018-a44268a01b18 2023-05-15T15:55:48+02:00 Ground freezing and sampling of foundation soils at Duncan dam Sego, D. C. Sasitharan, S. Kilpatrick, B. I. Robertson, P. K. Pillai, V. S. 1994 https://era.library.ualberta.ca/items/a0032c95-39c0-417e-8018-a44268a01b18 https://doi.org/10.7939/R32N4ZM06 English eng https://era.library.ualberta.ca/items/a0032c95-39c0-417e-8018-a44268a01b18 doi:10.7939/R32N4ZM06 © 1994 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. Undisturbed sampling Ground freezing Cohesionless soils Article (Published) 1994 ftunivalberta https://doi.org/10.7939/R32N4ZM06 2022-08-22T20:12:43Z Abstract: In situ ground freezing to obtain undisturbed samples of a loose sand beneath the Duncan Dam in British Columbia is described. This was the first known use of ground freezing to assist in obtaining samples at depth greater than 10 m in Canada. Once frozen, the sand was cored and brought to the surface using a Cold Regions Research and Engineering Laboratory core barrel, which is used extensively in permafrost regions. The design, installation, and performance of the liquid nitrogen freezing systems are described in detail. The drilling, sampling, and preparation of the frozen core for transport to the testing facility are also outlined. The quality of the core retrieved during the sampling was judged to be excellent, and good agreement was found between the void ratios measured using both the frozen core and high-quality gamma-gamma density logging techniques, which were performed adjacent to ground-freezing and sampling locations. Other/Unknown Material Cold Regions Research and Engineering Laboratory permafrost University of Alberta: Era - Education and Research Archive British Columbia ENVELOPE(-125.003,-125.003,54.000,54.000) Canada |
institution |
Open Polar |
collection |
University of Alberta: Era - Education and Research Archive |
op_collection_id |
ftunivalberta |
language |
English |
topic |
Undisturbed sampling Ground freezing Cohesionless soils |
spellingShingle |
Undisturbed sampling Ground freezing Cohesionless soils Sego, D. C. Sasitharan, S. Kilpatrick, B. I. Robertson, P. K. Pillai, V. S. Ground freezing and sampling of foundation soils at Duncan dam |
topic_facet |
Undisturbed sampling Ground freezing Cohesionless soils |
description |
Abstract: In situ ground freezing to obtain undisturbed samples of a loose sand beneath the Duncan Dam in British Columbia is described. This was the first known use of ground freezing to assist in obtaining samples at depth greater than 10 m in Canada. Once frozen, the sand was cored and brought to the surface using a Cold Regions Research and Engineering Laboratory core barrel, which is used extensively in permafrost regions. The design, installation, and performance of the liquid nitrogen freezing systems are described in detail. The drilling, sampling, and preparation of the frozen core for transport to the testing facility are also outlined. The quality of the core retrieved during the sampling was judged to be excellent, and good agreement was found between the void ratios measured using both the frozen core and high-quality gamma-gamma density logging techniques, which were performed adjacent to ground-freezing and sampling locations. |
format |
Other/Unknown Material |
author |
Sego, D. C. Sasitharan, S. Kilpatrick, B. I. Robertson, P. K. Pillai, V. S. |
author_facet |
Sego, D. C. Sasitharan, S. Kilpatrick, B. I. Robertson, P. K. Pillai, V. S. |
author_sort |
Sego, D. C. |
title |
Ground freezing and sampling of foundation soils at Duncan dam |
title_short |
Ground freezing and sampling of foundation soils at Duncan dam |
title_full |
Ground freezing and sampling of foundation soils at Duncan dam |
title_fullStr |
Ground freezing and sampling of foundation soils at Duncan dam |
title_full_unstemmed |
Ground freezing and sampling of foundation soils at Duncan dam |
title_sort |
ground freezing and sampling of foundation soils at duncan dam |
publishDate |
1994 |
url |
https://era.library.ualberta.ca/items/a0032c95-39c0-417e-8018-a44268a01b18 https://doi.org/10.7939/R32N4ZM06 |
long_lat |
ENVELOPE(-125.003,-125.003,54.000,54.000) |
geographic |
British Columbia Canada |
geographic_facet |
British Columbia Canada |
genre |
Cold Regions Research and Engineering Laboratory permafrost |
genre_facet |
Cold Regions Research and Engineering Laboratory permafrost |
op_relation |
https://era.library.ualberta.ca/items/a0032c95-39c0-417e-8018-a44268a01b18 doi:10.7939/R32N4ZM06 |
op_rights |
© 1994 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. |
op_doi |
https://doi.org/10.7939/R32N4ZM06 |
_version_ |
1766391295945736192 |