The influence of variable-thickness ice on the loads exerted on sloping structures

Download
  1. Get@NRC: The influence of variable-thickness ice on the loads exerted on sloping structures (Opens in a new window)
DOIResolve DOI: http://doi.org/10.1016/S0165-232X(97)00007-4
AuthorSearch for: ; Search for:
TypeArticle
Journal titleCold regions science and technology
ISSN0165-232X
Volume26
Issue1
Pages3953; # of pages: 15
Subjectice; sea ice; loads; inclined; slope; non-uniformity
AbstractA test program has been carried out to investigate the influence of non-uniform ice thickness on the loads exerted by an ice sheet failing against both an upward-breaking and a downward-breaking sloping structure. Tests were performed with both level and non-uniform ice sheets in a model test basin. The comparison of the loads was used as a basis to determine the 'effective' thickness (heff) of the ice sheet where heff=hμ + khσ where hμ is the average ice thickness, hσ is the standard deviation of the ice thickness distribution, and k is a parameter that depends on structure slope and width and the mode of ice failure. For a wide, upward-breaking structure, k = 0.5 and 0.8 for slopes of 60° and 75°, respectively. For a wide downward-breaking structure, k = 1.4 and 1.6 for slopes of -60° and -75°, respectively. Based on these findings, analytical models for predicting ice forces on sloping structures have been modified to take into account the influence of non-uniform ice thickness.
Publication date
LanguageEnglish
AffiliationNational Research Council Canada; NRC Canadian Hydraulics Centre
Peer reviewedNo
Identifier10126636
NPARC number12329042
Export citationExport as RIS
Report a correctionReport a correction
Record identifierecb7bc07-f1df-4ad7-87b0-4208a8665c4d
Record created2009-09-10
Record modified2016-05-09
Bookmark and share
  • Share this page with Facebook (Opens in a new window)
  • Share this page with Twitter (Opens in a new window)
  • Share this page with Google+ (Opens in a new window)
  • Share this page with Delicious (Opens in a new window)