Sea-Ice Removal Techniques for Winter Quarters Bay, Antarctica.

During the winter months of DF-73 an artificial ice wharf was constructed in Winter Quarters Bay, Antarctica, to serve as a temporary docking facility. In January 1974, the artificial wharf cracked at several locations during ice breaker maneuvering to clear annual sea ice from the Bay. Subsequent d...

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Bibliographic Details
Main Authors: Brier,F. W., Vaudrey,K. D.
Other Authors: CIVIL ENGINEERING LAB (NAVY) PORT HUENEME CALIF
Format: Text
Language:English
Published: 1975
Subjects:
Snow
Ice and Permafrost
Civil Engineering
*Sea ice
Removal
Trenching
Machines
Excavation
Ice formation
Docks
Antarctic regions
Cold weather operations
Antarctic
Breaker
Winter Quarters Bay
Antarc*
Antarctica
Ice
permafrost
Sea ice
Online Access:http://www.dtic.mil/docs/citations/ADA018950
http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA018950
Description
Summary:During the winter months of DF-73 an artificial ice wharf was constructed in Winter Quarters Bay, Antarctica, to serve as a temporary docking facility. In January 1974, the artificial wharf cracked at several locations during ice breaker maneuvering to clear annual sea ice from the Bay. Subsequent discussion indicated that an area of open water adjacent to its seaward face would have prevented the damage. This report describes testing of a modified earth trencher to create an open-water area in the Bay. The trenching machine exceeded initial estimates of cutting speed, but rapid freeze-back of the trench prevented creation of an open-water area.

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