Breakup of Solid Ice Covers Due to Rapid Water Level Variations

• Main Author: Billfalk,Lennart
• Other Authors: SWEDISH STATE POWER BOARD AELVKARLEBY
• Format: Text
• Language: English
• Published: 1982
• Subjects: Hydrology; Limnology and Potamology; Snow; Ice and Permafrost; *Ice; Rivers; Channels(Waterways); Hydroelectricity; Electric power plants; Water; Level(Quantity); Variations; Fracture(Mechanics); Surges; Water waves; Bending moments; Deflection; Theory; Beams(Structural); Foundations(Structures); *Ice cover; *Water level; Ice breakup; LPN-CWIS31353; Ice; permafrost
• Online Access: http://www.dtic.mil/docs/citations/ADA112819; http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA112819

The conditions that lead to initial breakup of a solid ice on a river due to rapid water level variations are analyzed. The analysis is based on the theory of beams on an elastic foundation. First cracking is assumed to occur when the bending moment induced in the ice cover by the wave exceeds the flexural strength of the ice cover. (Author)