Load reduction due to grounded ice rubble on the Molikpaq
Grounded ice rubble is known to reduce ice loads on offshore structures, but there is little quantitative information on this load reduction. An event involving first year ice rubbling on the Molikpaq has been analyzed to investigate this issue. During the event, a rubble pile built up over approxim...
| Main Authors: | , |
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| Format: | Article in Journal/Newspaper |
| Language: | English |
| Published: |
Lulea University of Technology
2009
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| Subjects: | |
| Online Access: | https://nrc-publications.canada.ca/eng/view/object/?id=6ef37c21-573b-470b-a3ce-638c63b4138d https://nrc-publications.canada.ca/fra/voir/objet/?id=6ef37c21-573b-470b-a3ce-638c63b4138d |
| Summary: | Grounded ice rubble is known to reduce ice loads on offshore structures, but there is little quantitative information on this load reduction. An event involving first year ice rubbling on the Molikpaq has been analyzed to investigate this issue. During the event, a rubble pile built up over approximately one hour on the evening of April 12, 1986. Subsequently, a large multi-year ice floe impacted the rubble pile, with no load measured by the instrumentation of the structure. This event is compared with similar events in which no grounded rubble was present, in order to estimate the load reduction provided by the grounded rubble. A comparison is also made to previously published data on rubble field protection for the Molikpaq's four deployments, as well as for the Tarsiut caisson structure. Peer reviewed: Yes NRC publication: Yes |
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