Research Article
Jul 1977
Stability Analysis of Floating and Submerged Ice Floes
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VIEW THE REPLYPublication: Journal of the Hydraulics Division
Volume 103, Issue 7
Abstract
The mathematical model is based on the moment equilibrium of an ice floe resting beneath a uniformly thick ice cover. It is argued that the expression derived for incipient motion of ice block is similar to the relation developed for the stability of prisms resting on the riverbed. The critical thickness, densimetric Froude number for floe transport is compared with that for the submergence of a floe at the upstream end of an ice cover, and with Ashton’s streamwise force balance analysis for ice floe stability beneath an ice cover. A nondimensional graph (Froude number versus block thickness-flow depth ratio) is presented to summarize the results. The analysis presented herein indicates that fragmented ice covers thicken generally by internal collapse rather than by transport of floes beneath the floating cover.
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Published In
Journal of the Hydraulics Division
Volume 103 • Issue 7 • July 1977
Pages: 713 - 722
Copyright
© 1977 American Society of Civil Engineers.
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Published in print: Jul 1977
Published online: Feb 3, 2021
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Authors
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Mehmet S. Uzuner, AM.ASCE
Consulting Hydr. Engr., ARCTEC, Inc., Columbia, Md., formerly, Research Assoc., Inst. of Hydr. Research, Univ. of Iowa, Iowa City, Iowa
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