Author(s): Bernard Michel; T. P. Hodgson
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Keywords: No Keywords
Abstract: Transport Canada pressuremeter is a portable high speed borehole instrument used to obtain the "in situ" crushing strength of ice at fast loading rates. It was built as a field sturdy system using a high pressure rubber cell inflated manually at high speeds with a hand pump in order to obtain loading rates in the ice of the order of 10-3 s-1. The principle for its use is given as well as some typical results with their interpretation. Data was obtained during three winters of testing in lake ice. It was found that a coefficient of indentation is required to related the "in situ" triaxial measured strength to the uniaxial strength of various ice types in this range.
Year: 1992