Development of the original ice borehole jack
A tool to obtain the engineering strength and stiffness properties of ice in situ is described; these properties are needed by engineers to estimate ice forces on structures and ice load bearing capacity. The strength and stiffness of the ice sheet will vary with depth and thus it is necessary to ha...
Published in: | Canadian Journal of Civil Engineering |
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Format: | Article in Journal/Newspaper |
Language: | English |
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Canadian Science Publishing
1996
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Online Access: | http://dx.doi.org/10.1139/l96-019 http://www.nrcresearchpress.com/doi/pdf/10.1139/l96-019 |
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crcansciencepubl:10.1139/l96-019 2023-12-17T10:26:10+01:00 Development of the original ice borehole jack Masterson, D. M. Graham, W. 1996 http://dx.doi.org/10.1139/l96-019 http://www.nrcresearchpress.com/doi/pdf/10.1139/l96-019 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Civil Engineering volume 23, issue 1, page 186-192 ISSN 0315-1468 1208-6029 General Environmental Science Civil and Structural Engineering journal-article 1996 crcansciencepubl https://doi.org/10.1139/l96-019 2023-11-19T13:39:22Z A tool to obtain the engineering strength and stiffness properties of ice in situ is described; these properties are needed by engineers to estimate ice forces on structures and ice load bearing capacity. The strength and stiffness of the ice sheet will vary with depth and thus it is necessary to have a measure of strength that includes variation with depth to provide a means of determining average or global strength properties. To determine these properties it was necessary to have a tool that would measure strength and stiffness at 0.3–0.5 m intervals through the ice cover. A hydraulically activated borehole jack, operating at a pressure of 70 MPa and capable of fitting in a 150 mm diameter hole, was developed. This lightweight device has proven capable of measuring strength and stiffness properties and has been used by engineers and researchers in several parts of the arctic. It is now accepted as a standard tool for the verification of floating airstrips and other similar structures. Key words: ice, ice testing, ice testing in situ, ice strength, borehole testing, in situ borehole tests, engineering strength, ice compressive strength. Article in Journal/Newspaper Arctic Ice Sheet Canadian Science Publishing (via Crossref) Arctic Canadian Journal of Civil Engineering 23 1 186 192 |
institution |
Open Polar |
collection |
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 Masterson, D. M. Graham, W. Development of the original ice borehole jack |
topic_facet |
General Environmental Science Civil and Structural Engineering |
description |
A tool to obtain the engineering strength and stiffness properties of ice in situ is described; these properties are needed by engineers to estimate ice forces on structures and ice load bearing capacity. The strength and stiffness of the ice sheet will vary with depth and thus it is necessary to have a measure of strength that includes variation with depth to provide a means of determining average or global strength properties. To determine these properties it was necessary to have a tool that would measure strength and stiffness at 0.3–0.5 m intervals through the ice cover. A hydraulically activated borehole jack, operating at a pressure of 70 MPa and capable of fitting in a 150 mm diameter hole, was developed. This lightweight device has proven capable of measuring strength and stiffness properties and has been used by engineers and researchers in several parts of the arctic. It is now accepted as a standard tool for the verification of floating airstrips and other similar structures. Key words: ice, ice testing, ice testing in situ, ice strength, borehole testing, in situ borehole tests, engineering strength, ice compressive strength. |
format |
Article in Journal/Newspaper |
author |
Masterson, D. M. Graham, W. |
author_facet |
Masterson, D. M. Graham, W. |
author_sort |
Masterson, D. M. |
title |
Development of the original ice borehole jack |
title_short |
Development of the original ice borehole jack |
title_full |
Development of the original ice borehole jack |
title_fullStr |
Development of the original ice borehole jack |
title_full_unstemmed |
Development of the original ice borehole jack |
title_sort |
development of the original ice borehole jack |
publisher |
Canadian Science Publishing |
publishDate |
1996 |
url |
http://dx.doi.org/10.1139/l96-019 http://www.nrcresearchpress.com/doi/pdf/10.1139/l96-019 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Ice Sheet |
genre_facet |
Arctic Ice Sheet |
op_source |
Canadian Journal of Civil Engineering volume 23, issue 1, page 186-192 ISSN 0315-1468 1208-6029 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/l96-019 |
container_title |
Canadian Journal of Civil Engineering |
container_volume |
23 |
container_issue |
1 |
container_start_page |
186 |
op_container_end_page |
192 |
_version_ |
1785577880152965120 |