Large Scale Laboratory Direct Shear Tests on Ice
This paper presents the results of a series of large scale direct shear tests performed on lake ice. Test specimens were oriented with the principal stresses acting in the plane of the ice sheet, approximately normal to the long axes of the columnar crystals. Sample dimensions were large in comparis...
Published in: | Canadian Geotechnical Journal |
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Language: | English |
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Canadian Science Publishing
1975
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Online Access: | http://dx.doi.org/10.1139/t75-021 http://www.nrcresearchpress.com/doi/pdf/10.1139/t75-021 |
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crcansciencepubl:10.1139/t75-021 2023-12-17T10:31:46+01:00 Large Scale Laboratory Direct Shear Tests on Ice Roggensack, W. D. 1975 http://dx.doi.org/10.1139/t75-021 http://www.nrcresearchpress.com/doi/pdf/10.1139/t75-021 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Geotechnical Journal volume 12, issue 2, page 169-178 ISSN 0008-3674 1208-6010 Civil and Structural Engineering Geotechnical Engineering and Engineering Geology journal-article 1975 crcansciencepubl https://doi.org/10.1139/t75-021 2023-11-19T13:39:13Z This paper presents the results of a series of large scale direct shear tests performed on lake ice. Test specimens were oriented with the principal stresses acting in the plane of the ice sheet, approximately normal to the long axes of the columnar crystals. Sample dimensions were large in comparison with mean crystal diameter, reducing the possibility of deviations introduced by size effects. Although a number of assumptions are made concerning stress conditions at failure, results for uniform, artificially ‘seeded’ test pond ice indicate a failure mechanism that is frictional and consistent with triaxial test data reported elsewhere. Post-peak shear resulted in the formation of a distinct failure zone that also displayed a frictional response. The direct shear test described is robust and simple, does not require elaborate sample preparation, and may present an alternative method of strength determination for ice mechanics problems where the shear box configuration duplicates field stress conditions and constraints. Article in Journal/Newspaper Ice Sheet Canadian Science Publishing (via Crossref) Canadian Geotechnical Journal 12 2 169 178 |
institution |
Open Polar |
collection |
Canadian Science Publishing (via Crossref) |
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 Roggensack, W. D. Large Scale Laboratory Direct Shear Tests on Ice |
topic_facet |
Civil and Structural Engineering Geotechnical Engineering and Engineering Geology |
description |
This paper presents the results of a series of large scale direct shear tests performed on lake ice. Test specimens were oriented with the principal stresses acting in the plane of the ice sheet, approximately normal to the long axes of the columnar crystals. Sample dimensions were large in comparison with mean crystal diameter, reducing the possibility of deviations introduced by size effects. Although a number of assumptions are made concerning stress conditions at failure, results for uniform, artificially ‘seeded’ test pond ice indicate a failure mechanism that is frictional and consistent with triaxial test data reported elsewhere. Post-peak shear resulted in the formation of a distinct failure zone that also displayed a frictional response. The direct shear test described is robust and simple, does not require elaborate sample preparation, and may present an alternative method of strength determination for ice mechanics problems where the shear box configuration duplicates field stress conditions and constraints. |
format |
Article in Journal/Newspaper |
author |
Roggensack, W. D. |
author_facet |
Roggensack, W. D. |
author_sort |
Roggensack, W. D. |
title |
Large Scale Laboratory Direct Shear Tests on Ice |
title_short |
Large Scale Laboratory Direct Shear Tests on Ice |
title_full |
Large Scale Laboratory Direct Shear Tests on Ice |
title_fullStr |
Large Scale Laboratory Direct Shear Tests on Ice |
title_full_unstemmed |
Large Scale Laboratory Direct Shear Tests on Ice |
title_sort |
large scale laboratory direct shear tests on ice |
publisher |
Canadian Science Publishing |
publishDate |
1975 |
url |
http://dx.doi.org/10.1139/t75-021 http://www.nrcresearchpress.com/doi/pdf/10.1139/t75-021 |
genre |
Ice Sheet |
genre_facet |
Ice Sheet |
op_source |
Canadian Geotechnical Journal volume 12, issue 2, page 169-178 ISSN 0008-3674 1208-6010 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/t75-021 |
container_title |
Canadian Geotechnical Journal |
container_volume |
12 |
container_issue |
2 |
container_start_page |
169 |
op_container_end_page |
178 |
_version_ |
1785585170592563200 |