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The Role of Ice Gouging in Determining Global Forces on Arctic Structures

by R. G. Bea, PMB Systems Engineering Inc, San, Francisco, CA, USA,
F. J. Puskar, PMB Systems Engineering Inc, San, Francisco, CA, USA,
P. W. Barnes, PMB Systems Engineering Inc, San, Francisco, CA, USA,
E. Reimnitz, PMB Systems Engineering Inc, San, Francisco, CA, USA,



Document Type: Proceeding Paper

Part of: Civil Engineering in the Arctic Offshore

Abstract:

Structures built in water depths where ice keels are in contact with the seafloor can experience reductions in the environmental driving forces transmitted to structures due to seafloor gouging resistances. Ice gouging processes and characteristics on the shelf of the Alaskan Beaufort Sea are summarized. Using this information, a simplified analytical model is formulated which enables estimates of the environmental driving force reductions contributed by gouging. These estimates illustrate the potential reduction of global ice forces on a structure due to ice gouging.

Subject Headings: Ice | Offshore structures | Sea ice | Sea floor | Seas and oceans | Load and resistance factor design | Floors | Arctic | Beaufort Sea

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