ICE ARCHING AND THE DRIFT OF PACK ICE THROUGH RESTRICTED CHANNELS

Models originally developed to describe the arching and the movement of granular materials through hoppers or chutes are applied to the arching and drift of pack ice in straits and gulfs having lengths of 50 to 500 km. Verification of the usefulness of the models is attempted by making comparisons with ice deformation patterns as observed via satellite imagery in the Bering Strait region and in Amundsen Gulf. Values determined via the model for the angle of internal friction ( approximately equals 30 degree to 35 degree ) and the cohesive strength per unit thickness ( approximately equals 2000 N/m) are similar to values obtained by other approaches. It is estimated that if the wind velocity parallel to the Bering Strait exceeds approximately equals 6 m/s, there will be ice flow through the strait.

• Corporate Authors:

  U.S. Army Cold Regions Research and Engineering Laboratory

  72 Lyme Road
  Hanover, NH  United States  03755-1290
• Authors:
  • Sodhi, D S
• Publication Date: 1977-8

Media Info

• Features: References;
• Pagination: 14 p.

Subject/Index Terms

• TRT Terms: Drift ice; Ice; Ice formations; Inland waterways; Mathematical models; Pack ice; Sea ice; Strength of materials; Thickness
• Old TRIS Terms: Ice arching; Ice strength; Ice thickness
• Subject Areas: Hydraulics and Hydrology; Marine Transportation; Materials;

Filing Info

• Accession Number: 00170481
• Record Type: Publication
• Source Agency: Engineering Index
• Report/Paper Numbers: No. 77-18
• Files: TRIS
• Created Date: Mar 7 1978 12:00AM