A Pilot experiment to measure arctic pack-ice driving forces

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ConferenceProc. 9th Int. Conf. on Port and Ocean Engineering under Arctic Conditions (POAC-87): 17 August 1987, Fairbanks, Alaska, USA
Pages381395; # of pages: 15
Subjectice; forces (mechanics); pack ice; driving forces; compressive ice stresses; southern beaufort sea, multi-year ice floe; ridging; force (mécanique)
AbstractPack-ice driving forces are synonymous with the limiting forces that can be transmitted through pack ice. Knowledge of this topic is important in relation to: ice loads on structures (the limiting driving force approach); ice motion modelling and forecasting; arctic ship routing. Until recently, limiting pack-ice forces had been speculated upon but never measured. This paper describes a pilot experiment to measure typical values for pack-ice driving forces across a width of several kilometres in the southern Beaufort Sea. In-situ ice pressure sensors were installed near the middle of a multi-year floe. The floe was subject to converging ice conditions and pressure ridging occurred around it. Corresponding compressive ice stresses in the floe were measured from which the average pack-ice forces associated with the observed ridging could be inferred. The paper describes the background to the project, the general approach, the equipment used, and the results obtained.
Publication date
AffiliationNRC Institute for Research in Construction; National Research Council Canada
Peer reviewedYes
NRC number31006
NPARC number20378444
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Record identifier49b2bc95-b5d0-4648-be63-eaf9abcc9c1f
Record created2012-07-24
Record modified2016-05-09
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