Ice Tank Tests on Ice Rubble Loads Against a Cable-Moored Conical Platform

Presented herein are ice-tank data concerning ice-rubble loads against a moored conical platform. Of prime interest is how rubble-ice loads are influenced by horizontal stiffness of the platform's mooring system. An important, and heretofore undocumented, feature of rubble loading and clearing around the platform is the accumulation of ice rubble as a false bow, or prow, at the platform's leading perimeter. The ice-tank data show that, under certain conditions of ice-rubble loading, the lowest stiffness of mooring tested resulted in prow instability and sloughing, which in turn lead to a cyclic pattern of loading, and to rubble congestion around the platform. An outcome of such rubble congestion was a marked increase in the overall rubble-ice load exerted against the platform.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/13202939
• Authors:
  • Ettema, Robert
  • Nixon, Wilfrid A
• Publication Date: 2005-12

Language

• English

Media Info

• Media Type: Print
• Features: Figures; References;
• Pagination: pp 103-116
• Serial:
  • Journal of Cold Regions Engineering
  • Volume: 19
  • Issue Number: 4
  • Publisher: American Society of Civil Engineers
  • ISSN: 0887-381X
  • Serial URL: http://opjs.aip.org/cro

Subject/Index Terms

• TRT Terms: Ice formations; Load tests; Mooring cables; Offshore moorings; Offshore platforms; Repeated loads; Stiffness
• Uncontrolled Terms: Conical platforms; Ice rubble; Ice-tank testing; Rubble congestion; Rubble loading
• Subject Areas: Bridges and other structures; Design; Pipelines;

Filing Info

• Accession Number: 01014795
• Record Type: Publication
• Files: TRIS
• Created Date: Dec 27 2005 9:02AM