Determination of a diletancy angle as a parameter for numerical modeling of soil behavior
The dilatancy angle у is an input parameter for a number of non-linear models of soil behavior: Coulomb-Moor (ideal plasticity model), hardening soil model - isotropic hardening, soft-soil model, soft-soil creep model - rheological behavior etc. To increase the accuracy of engineering calculations and minimize errors when determining the ultimate loads, strains or estimating the slope stability, it is advisable to determine experimentally the value of the dilatancy angle у. Produced were the search of the optimal dependency to calculate the value of the dilatancy angle у and the comparative analysis of the testing results obtained in the conditions of the single plane shear and triaxial compression.