Rate-controlled cone penetration tests in permafrost
Cone penetration tests (CPTs) were carried out in the summers of 1999 and 2000 in a permafrost mound near Umiujaq, in northern Quebec, Canada, to study the cryostratigraphy and assess the creep behaviour of permafrost. A new linear pushing system using an actuator technology was specifically designe...
Published in: | Canadian Geotechnical Journal |
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Online Access: | http://dx.doi.org/10.1139/t04-093 http://www.nrcresearchpress.com/doi/pdf/10.1139/t04-093 |
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crcansciencepubl:10.1139/t04-093 2024-04-07T07:53:06+00:00 Rate-controlled cone penetration tests in permafrost Buteau, Sylvie Fortier, Richard Allard, Michel 2005 http://dx.doi.org/10.1139/t04-093 http://www.nrcresearchpress.com/doi/pdf/10.1139/t04-093 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Geotechnical Journal volume 42, issue 1, page 184-197 ISSN 0008-3674 1208-6010 Civil and Structural Engineering Geotechnical Engineering and Engineering Geology journal-article 2005 crcansciencepubl https://doi.org/10.1139/t04-093 2024-03-08T00:37:42Z Cone penetration tests (CPTs) were carried out in the summers of 1999 and 2000 in a permafrost mound near Umiujaq, in northern Quebec, Canada, to study the cryostratigraphy and assess the creep behaviour of permafrost. A new linear pushing system using an actuator technology was specifically designed and developed to accurately control the penetration rate of the cone in the permafrost. This system has a load capacity of about 113 kN at a maximum penetration rate of 1.5875 cm/s and a stroke of 120 cm and can provide constant penetration rates as low as 4 × 10 6 cm/s. It can be disassembled in pieces for easy hand transport and use in remote locations. Two different types of CPT were performed in the permafrost mound: stratigraphic profiling and creep test. The first type is a quasi-static CPT at a penetration rate of 0.1 cm/s, providing a stratigraphic profile of permafrost in terms of the measurement of penetrometer sensors as a function of depth. The second type is a series of quasi-static CPTs at incremental rates of penetration, from 10 4 to 10 2 cm/s, carried out in a homogeneous layer to study the creep behaviour of permafrost. Five distinct zones (unfrozen and frozen active layer, permafrost, cryotic but unfrozen ground, and perennially noncryotic ground) can be identified in the stratigraphic profiles. The creep exponents calculated from the creep tests range from 12 to 35 for the ice-poor frozen active layer and from 4 to 11 for the ice-rich permafrost. Key words: cone penetration test, permafrost, rate-controlled, creep behaviour, cryostratigraphy. Article in Journal/Newspaper Ice permafrost Umiujaq Canadian Science Publishing Canada Umiujaq ENVELOPE(-76.549,-76.549,56.553,56.553) Canadian Geotechnical Journal 42 1 184 197 |
institution |
Open Polar |
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Canadian Science Publishing |
op_collection_id |
crcansciencepubl |
language |
English |
topic |
Civil and Structural Engineering Geotechnical Engineering and Engineering Geology |
spellingShingle |
Civil and Structural Engineering Geotechnical Engineering and Engineering Geology Buteau, Sylvie Fortier, Richard Allard, Michel Rate-controlled cone penetration tests in permafrost |
topic_facet |
Civil and Structural Engineering Geotechnical Engineering and Engineering Geology |
description |
Cone penetration tests (CPTs) were carried out in the summers of 1999 and 2000 in a permafrost mound near Umiujaq, in northern Quebec, Canada, to study the cryostratigraphy and assess the creep behaviour of permafrost. A new linear pushing system using an actuator technology was specifically designed and developed to accurately control the penetration rate of the cone in the permafrost. This system has a load capacity of about 113 kN at a maximum penetration rate of 1.5875 cm/s and a stroke of 120 cm and can provide constant penetration rates as low as 4 × 10 6 cm/s. It can be disassembled in pieces for easy hand transport and use in remote locations. Two different types of CPT were performed in the permafrost mound: stratigraphic profiling and creep test. The first type is a quasi-static CPT at a penetration rate of 0.1 cm/s, providing a stratigraphic profile of permafrost in terms of the measurement of penetrometer sensors as a function of depth. The second type is a series of quasi-static CPTs at incremental rates of penetration, from 10 4 to 10 2 cm/s, carried out in a homogeneous layer to study the creep behaviour of permafrost. Five distinct zones (unfrozen and frozen active layer, permafrost, cryotic but unfrozen ground, and perennially noncryotic ground) can be identified in the stratigraphic profiles. The creep exponents calculated from the creep tests range from 12 to 35 for the ice-poor frozen active layer and from 4 to 11 for the ice-rich permafrost. Key words: cone penetration test, permafrost, rate-controlled, creep behaviour, cryostratigraphy. |
format |
Article in Journal/Newspaper |
author |
Buteau, Sylvie Fortier, Richard Allard, Michel |
author_facet |
Buteau, Sylvie Fortier, Richard Allard, Michel |
author_sort |
Buteau, Sylvie |
title |
Rate-controlled cone penetration tests in permafrost |
title_short |
Rate-controlled cone penetration tests in permafrost |
title_full |
Rate-controlled cone penetration tests in permafrost |
title_fullStr |
Rate-controlled cone penetration tests in permafrost |
title_full_unstemmed |
Rate-controlled cone penetration tests in permafrost |
title_sort |
rate-controlled cone penetration tests in permafrost |
publisher |
Canadian Science Publishing |
publishDate |
2005 |
url |
http://dx.doi.org/10.1139/t04-093 http://www.nrcresearchpress.com/doi/pdf/10.1139/t04-093 |
long_lat |
ENVELOPE(-76.549,-76.549,56.553,56.553) |
geographic |
Canada Umiujaq |
geographic_facet |
Canada Umiujaq |
genre |
Ice permafrost Umiujaq |
genre_facet |
Ice permafrost Umiujaq |
op_source |
Canadian Geotechnical Journal volume 42, issue 1, page 184-197 ISSN 0008-3674 1208-6010 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/t04-093 |
container_title |
Canadian Geotechnical Journal |
container_volume |
42 |
container_issue |
1 |
container_start_page |
184 |
op_container_end_page |
197 |
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1795668715933532160 |