Although several investigations on the prediction of ice forces on structures have been carried out during the last decade, the problem has not yet been solved. A logical approach to the study of ice forces on structures is by the use of model tests as a systematic basis for further analytical inquiry. Such a research program was initiated at the Iowa Institute of Hydraulic Research in 1972. Model studies for the investigation of ice forces on vertical piles have been accomplished successfully by using freshwater ice of small crystals but of natural strength. It has been shown that the fracture pattern of this ice was similar to that in prototype and that some preliminary results are in good agreement with data from prototype tests. Investigations on the influence of the velocity and width of the structure, the thickness of the ice, the degree of contact between ice and structure and the influence of a wedge on the ice forces against vertical piles are nearing completion. Model tests on pile combinations and on inclined wedges will be made later on; this study will, however, require a reduction in the strength of the ice. Special attention has been and will be given to the fracture behavior of the ice in front of the pile and to the studies of basic mechanical properties of the ice. These investigations will provide the background information for further theoretical analysis.

Media Info

  • Pagination: p. 332-344

Subject/Index Terms

Filing Info

  • Accession Number: 00095020
  • Record Type: Publication
  • Source Agency: Arctic Institute of North America
  • Files: TRIS
  • Created Date: May 19 1975 12:00AM