The influence of variable-thickness ice on the loads exerted on sloping structures
A test program has been carried out to investigate the influence of non-uniform ice thickness on the loads exerted by an ice sheet failing against both an upward-breaking and a downward-breaking sloping structure. Tests were performed with both level and non-uniform ice sheets in a model test basin....
Published in: | Cold Regions Science and Technology |
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Language: | English |
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1997
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Online Access: | https://doi.org/10.1016/S0165-232X(97)00007-4 https://nrc-publications.canada.ca/eng/view/object/?id=ecb7bc07-f1df-4ad7-87b0-4208a8665c4d https://nrc-publications.canada.ca/fra/voir/objet/?id=ecb7bc07-f1df-4ad7-87b0-4208a8665c4d |
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ftnrccanada:oai:cisti-icist.nrc-cnrc.ca:cistinparc:12329042 2023-05-15T16:40:27+02:00 The influence of variable-thickness ice on the loads exerted on sloping structures Timco, G. W. Cornett, A. M. 1997 text https://doi.org/10.1016/S0165-232X(97)00007-4 https://nrc-publications.canada.ca/eng/view/object/?id=ecb7bc07-f1df-4ad7-87b0-4208a8665c4d https://nrc-publications.canada.ca/fra/voir/objet/?id=ecb7bc07-f1df-4ad7-87b0-4208a8665c4d eng eng issn:0165-232X Cold regions science and technology, Volume: 26, Issue: 1, Publication date: 1997, Pages: 39–53 doi:10.1016/S0165-232X(97)00007-4 irn:10126636 ice sea ice loads inclined slope non-uniformity article 1997 ftnrccanada https://doi.org/10.1016/S0165-232X(97)00007-4 2021-09-01T06:18:53Z A test program has been carried out to investigate the influence of non-uniform ice thickness on the loads exerted by an ice sheet failing against both an upward-breaking and a downward-breaking sloping structure. Tests were performed with both level and non-uniform ice sheets in a model test basin. The comparison of the loads was used as a basis to determine the 'effective' thickness (heff) of the ice sheet where heff=hμ + khσ where hμ is the average ice thickness, hσ is the standard deviation of the ice thickness distribution, and k is a parameter that depends on structure slope and width and the mode of ice failure. For a wide, upward-breaking structure, k = 0.5 and 0.8 for slopes of 60° and 75°, respectively. For a wide downward-breaking structure, k = 1.4 and 1.6 for slopes of -60° and -75°, respectively. Based on these findings, analytical models for predicting ice forces on sloping structures have been modified to take into account the influence of non-uniform ice thickness. NRC publication: Yes Article in Journal/Newspaper Ice Sheet Sea ice National Research Council Canada: NRC Publications Archive Cold Regions Science and Technology 26 1 39 53 |
institution |
Open Polar |
collection |
National Research Council Canada: NRC Publications Archive |
op_collection_id |
ftnrccanada |
language |
English |
topic |
ice sea ice loads inclined slope non-uniformity |
spellingShingle |
ice sea ice loads inclined slope non-uniformity Timco, G. W. Cornett, A. M. The influence of variable-thickness ice on the loads exerted on sloping structures |
topic_facet |
ice sea ice loads inclined slope non-uniformity |
description |
A test program has been carried out to investigate the influence of non-uniform ice thickness on the loads exerted by an ice sheet failing against both an upward-breaking and a downward-breaking sloping structure. Tests were performed with both level and non-uniform ice sheets in a model test basin. The comparison of the loads was used as a basis to determine the 'effective' thickness (heff) of the ice sheet where heff=hμ + khσ where hμ is the average ice thickness, hσ is the standard deviation of the ice thickness distribution, and k is a parameter that depends on structure slope and width and the mode of ice failure. For a wide, upward-breaking structure, k = 0.5 and 0.8 for slopes of 60° and 75°, respectively. For a wide downward-breaking structure, k = 1.4 and 1.6 for slopes of -60° and -75°, respectively. Based on these findings, analytical models for predicting ice forces on sloping structures have been modified to take into account the influence of non-uniform ice thickness. NRC publication: Yes |
format |
Article in Journal/Newspaper |
author |
Timco, G. W. Cornett, A. M. |
author_facet |
Timco, G. W. Cornett, A. M. |
author_sort |
Timco, G. W. |
title |
The influence of variable-thickness ice on the loads exerted on sloping structures |
title_short |
The influence of variable-thickness ice on the loads exerted on sloping structures |
title_full |
The influence of variable-thickness ice on the loads exerted on sloping structures |
title_fullStr |
The influence of variable-thickness ice on the loads exerted on sloping structures |
title_full_unstemmed |
The influence of variable-thickness ice on the loads exerted on sloping structures |
title_sort |
influence of variable-thickness ice on the loads exerted on sloping structures |
publishDate |
1997 |
url |
https://doi.org/10.1016/S0165-232X(97)00007-4 https://nrc-publications.canada.ca/eng/view/object/?id=ecb7bc07-f1df-4ad7-87b0-4208a8665c4d https://nrc-publications.canada.ca/fra/voir/objet/?id=ecb7bc07-f1df-4ad7-87b0-4208a8665c4d |
genre |
Ice Sheet Sea ice |
genre_facet |
Ice Sheet Sea ice |
op_relation |
issn:0165-232X Cold regions science and technology, Volume: 26, Issue: 1, Publication date: 1997, Pages: 39–53 doi:10.1016/S0165-232X(97)00007-4 irn:10126636 |
op_doi |
https://doi.org/10.1016/S0165-232X(97)00007-4 |
container_title |
Cold Regions Science and Technology |
container_volume |
26 |
container_issue |
1 |
container_start_page |
39 |
op_container_end_page |
53 |
_version_ |
1766030856258846720 |