The outcomes of numerical simulation of ridge keel behaviour by a discrete element method (DEM) are presented in the paper. The DEM version developed at KSRI was tested on results of model investigations of ridge keel in laboratory conditions: direct shear test and punch test. Attempts to interpret outcomes of experiments using soil mechanics theory do not allow obtaining sufficient conformity of soil and ridge keel. At the same time, the pictures of ridge keel deformation plotted using DEM are well in accord with experimental pictures in tests named above. In the work, the results of direct shear tests conducted in the Ice Basin of KSRI and the results of punch tests conducted at the University of Calgary are used.
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