CGRG Bibliography of Canadian Geomorphology
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Author : Fortier, R.; Ladanyi, B.; and Allard, M.
Date : 1993
Title : CPT study of the effect of unfrozen water content on strength of silty permafrost at Kangiqsualujjuaq, Nunavik.
Publication : Proceedings of the 46th Annual Canadian Geotechnical Conference, September 27-29, 1993,
Issue :
Page(s) : 307-318.
Abstract
A geotechnical testing program was performed during the thaw period in 1992 on a silty permafrost mound at Kangiqsualujjuaq, Nunavik (Quebec) in order to define the physical properties of frozen soil affecting its strength. A total of 32 Cone Penetration Tests (CPT) from the surface to a depth of 2 m were carried out. A Fugro electric cone penetrometer of 50 kN capacity without friction sleeve was used for the tests. Numerical analysis of the results indicate that the frozen soil strength is not only a function of external conditions but also of internal ones; most important of which are ground temperature, unfrozen water content, and pore water salinity. Results show that the CPT method can be useful for designing structures on permafrost.
Bibliography of Canadian Geomorphology