Load-carrying capacity of ice for timber transport

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DOIResolve DOI: http://doi.org/10.4224/20358994
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TypeTechnical Report
Series titleTechnical translation (National Research Council of Canada); no. TT-863
Subjectice loads; ice; glace (gel)
AbstractThe determination of the load carrying capacity of an ice cover is important to ensure safe transport across rivers and lakes during the winter. The formula recommended gives the required ice thickness "h" in centimeters and the permissible load "P" in tons for safe traffic conditions for single vehicles crossing the ice. (h = P divided by 10 or P = 100 divided by h[2] tons (metric)). The above formula gives a considerable margin of safety. Difficulties arise in calculating the safe ice cover thickness for a moving vehicle train, although several calculation methods exist. The relationship suggested for the formula of ice loading capacity for single vehicle traffic is given by P = 100 n divided by h[2] where n is the correction coefficient, which is based on ice type. In order to ensure traffic safety, calculations should not be limited to minimum ice thickness or to the magnitude of the load, but must consider actual conditions. The calculation does not apply to standing loads. Vehicles are not allowed to overtake each other or pass in opposite directions if safe conditions are to be maintained.
Publication date
PublisherNational Research Council of Canada
AffiliationNational Research Council Canada
Peer reviewedNo
NRC numberNRC-IRC-444
NPARC number20358994
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Record identifier9965d9b4-982b-4749-a0dd-d90cb9da8b1a
Record created2012-07-20
Record modified2017-06-29
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