Design Factors for River Ice Booms Analyzed (Issleovanie Ledozashchitnykh Zapanei)

Model studies were made to determine hydraulic characteristics of structures for protecting ships wintering in rivers under conditions similar to those observed in European and Siberian rivers (ice-cover thickness up to 1.8m. and river depth to 12m.). The experiments are described, and data are math...

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Bibliographic Details
Main Author: Latyshenkov,A. M.
Other Authors: COLD REGIONS RESEARCH AND ENGINEERING LAB HANOVER N H
Format: Text
Language:English
Published: 1975
Subjects:
Snow
Ice and Permafrost
Civil Engineering
*RIVERS
*ICE PREVENTION
STRESSES
VELOCITY
MATHEMATICAL MODELS
USSR
THICKNESS
SHIPS
WATER FLOW
EXPERIMENTAL DATA
DEPTH
ICE
PRESSURE
PROTECTION
TRANSLATIONS
BATTLES
FRICTION
FLOATING BODIES
BOOMS(EQUIPMENT)
SIBERIA
HARBOR MODELS
MECHANICAL CABLES
*Ice booms
River ice
Ice cover
Ice
permafrost
Siberia
Online Access:http://www.dtic.mil/docs/citations/ADA014886
http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA014886
Description
Summary:Model studies were made to determine hydraulic characteristics of structures for protecting ships wintering in rivers under conditions similar to those observed in European and Siberian rivers (ice-cover thickness up to 1.8m. and river depth to 12m.). The experiments are described, and data are mathematically analyzed. Formulas and graphs for calculating the stresses as a function of ice-cover thickness, flow speed, and width and depth of the river are suggested. The ice pressure on protective booms in a stream wider than 30 m was found to increase 85-90% due to the friction between the lower ice surface and flowing water. The friction coefficient is proportional to the ratio of ice thickness to flow depth. Trans. of Gidrotekhnicheskoe Stroitel'stvo (USSR) v15 n4 p13-19 1946.

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