DESIGN FACTORS FOR RIVER ICE BOOMS ANALYZED

ISSLEDOVANIE LEDOZASHCHITNY KH 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 mathematically analyzed. Formulas 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.

Media Info

  • Pagination: 17 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00128431
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Report/Paper Numbers: CRREL-TL-485
  • Files: TRIS
  • Created Date: Dec 29 1975 12:00AM