Experimental Studies on the Bohai Sea Ice Shear Strength
Publication: Journal of Cold Regions Engineering
Volume 27, Issue 4
Abstract
Shear strength is a basic mechanical property of sea ice and directly affects the determination of ice loads on offshore structures in addition to the breakup behavior of ice cover in sea ice dynamics. This paper reports on the writers’ studies of the influences of ice temperature, brine volume, and shear stress rate on sea ice shear strength using laboratory shear tests with single-shear plane and lateral confinement. Ice samples were collected from the Laizhou Bay and Yellow River Delta of the Bohai Sea. Sea ice shear strength increases linearly in accordance with decreasing temperature and increasing shear stress rate, and decreases exponentially in accordance with the square root of brine volume. Considering the influences of both brine volume and shear stress rate comprehensively, this paper presents a double-parameter function to determine the sea ice shear strength.
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Acknowledgments
This paper was financially supported by the Special Founding of Marine Commonwealth Industry (No. 201105016 and No. 2012418007) and the National Nature Science Foundation of China (No. 41176012). The writers appreciate the assistance of colleagues from Dalian University of Technology in the field tests of sea ice physical and mechanical properties. The writers also appreciate the technical and editorial recommendations of the reviewers.
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Information & Authors
Information
Published In
Journal of Cold Regions Engineering
Volume 27 • Issue 4 • December 2013
Pages: 244 - 254
Copyright
© 2013 American Society of Civil Engineers.
History
Received: Aug 29, 2012
Accepted: May 2, 2013
Published online: May 4, 2013
Discussion open until: Oct 4, 2013
Published in print: Dec 1, 2013
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