Borehole penetration and expansion devices for ice testing
The paper presents two methods for in situ testing of strength and creep properties of ice, together with their theoretical interpretation and typical results. The two methods which are relatively new in this area of application, are the stress-controlled cone penetration test (CPT), and the sharp c...
Published in: | Canadian Journal of Civil Engineering |
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Canadian Science Publishing
1996
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Online Access: | http://dx.doi.org/10.1139/l96-016 http://www.nrcresearchpress.com/doi/pdf/10.1139/l96-016 |
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crcansciencepubl:10.1139/l96-016 2023-12-17T10:31:46+01:00 Borehole penetration and expansion devices for ice testing Ladanyi, Branko 1996 http://dx.doi.org/10.1139/l96-016 http://www.nrcresearchpress.com/doi/pdf/10.1139/l96-016 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Civil Engineering volume 23, issue 1, page 157-164 ISSN 0315-1468 1208-6029 General Environmental Science Civil and Structural Engineering journal-article 1996 crcansciencepubl https://doi.org/10.1139/l96-016 2023-11-19T13:39:40Z The paper presents two methods for in situ testing of strength and creep properties of ice, together with their theoretical interpretation and typical results. The two methods which are relatively new in this area of application, are the stress-controlled cone penetration test (CPT), and the sharp cone test (SCT). The CPT has been shown in the last few years to be an excellent tool for both ice quality profiling and ice creep and strength properties determination. The test can be used for penetrating vertically through an ice sheet, or laterally into an ice wall in a trench. The SCT is a special kind of borehole-expansion test. The method consists in pushing a smooth, low-angle, conical indentor into a predrilled conical portion of a borehole, which ends with a smaller diameter pilot hole. The creep properties of ice are then deduced from the relationship between the applied load, time, and cone penetration, which is directly related to the hole expansion. Key words: ice, creep, strength, in situ testing, cone penetration, borehole expansion, sharp cone. Article in Journal/Newspaper Ice Sheet Canadian Science Publishing (via Crossref) Canadian Journal of Civil Engineering 23 1 157 164 |
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Open Polar |
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Canadian Science Publishing (via Crossref) |
op_collection_id |
crcansciencepubl |
language |
English |
topic |
General Environmental Science Civil and Structural Engineering |
spellingShingle |
General Environmental Science Civil and Structural Engineering Ladanyi, Branko Borehole penetration and expansion devices for ice testing |
topic_facet |
General Environmental Science Civil and Structural Engineering |
description |
The paper presents two methods for in situ testing of strength and creep properties of ice, together with their theoretical interpretation and typical results. The two methods which are relatively new in this area of application, are the stress-controlled cone penetration test (CPT), and the sharp cone test (SCT). The CPT has been shown in the last few years to be an excellent tool for both ice quality profiling and ice creep and strength properties determination. The test can be used for penetrating vertically through an ice sheet, or laterally into an ice wall in a trench. The SCT is a special kind of borehole-expansion test. The method consists in pushing a smooth, low-angle, conical indentor into a predrilled conical portion of a borehole, which ends with a smaller diameter pilot hole. The creep properties of ice are then deduced from the relationship between the applied load, time, and cone penetration, which is directly related to the hole expansion. Key words: ice, creep, strength, in situ testing, cone penetration, borehole expansion, sharp cone. |
format |
Article in Journal/Newspaper |
author |
Ladanyi, Branko |
author_facet |
Ladanyi, Branko |
author_sort |
Ladanyi, Branko |
title |
Borehole penetration and expansion devices for ice testing |
title_short |
Borehole penetration and expansion devices for ice testing |
title_full |
Borehole penetration and expansion devices for ice testing |
title_fullStr |
Borehole penetration and expansion devices for ice testing |
title_full_unstemmed |
Borehole penetration and expansion devices for ice testing |
title_sort |
borehole penetration and expansion devices for ice testing |
publisher |
Canadian Science Publishing |
publishDate |
1996 |
url |
http://dx.doi.org/10.1139/l96-016 http://www.nrcresearchpress.com/doi/pdf/10.1139/l96-016 |
genre |
Ice Sheet |
genre_facet |
Ice Sheet |
op_source |
Canadian Journal of Civil Engineering volume 23, issue 1, page 157-164 ISSN 0315-1468 1208-6029 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/l96-016 |
container_title |
Canadian Journal of Civil Engineering |
container_volume |
23 |
container_issue |
1 |
container_start_page |
157 |
op_container_end_page |
164 |
_version_ |
1785585173173108736 |