The Coefficient of Friction Between Sea Ice and Various Materials Used in Offshore Structures

[+] Author and Article Information
H. Saeki, T. Ono

Department of Civil Engineering, Hokkaido University, Sapporo, Japan

N. Nakazawa

Pacific Consultants Co., Ltd., Sapporo, Japan

M. Sakai

Taisei Corp., Tokyo, Japan

S. Tanaka

Research and Development Center, Kawasaki Steel Corp., Chiba, Japan

J. Energy Resour. Technol 108(1), 65-71 (Mar 01, 1986) (7 pages) doi:10.1115/1.3231243 History: Received March 30, 1984; Revised November 02, 1985; Online October 22, 2009


When structures having inclined surfaces, such as cone-type and inclined-pile structures, are constructed in coastal and offshore cold regions, sea ice forces must be considered in their design. In order to estimate these forces, the relationships of the coefficients of static and kinetic friction between sea ice and construction materials must be evaluated. The authors have been conducting, for four years, experiments on the coefficients of friction between sea ice and various commonly used offshore construction materials such as concrete and steel. This paper summarizes the results of this study. The coefficients of friction have been found to be affected by the following: (i ) relative velocity (i.e., velocity of construction material relative to sea ice); (ii ) sea ice temperature; and (iii ) surface roughness of construction material. They have been found to be relatively unaffected by the following: (i ) contact area, (ii ) normal stress, (iii ) growth direction of sea ice, and (iv ) water at the sea ice-material interface.

Copyright © 1986 by ASME
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