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The ESyS-Particle discrete element implementation is examined for validity in studying block caving flows through comparison against previous numerical studies. Unbonded granular assemblies are studied using triaxial simulations as a way to quantitatively characterise macroscopic friction angles with ranging size distributions and particle properties such as stiffness and per particle microscopic frictional coefficient. These results are used as a basis for 3D quarter symmetry simulations of block caving flows. Calibration and comparisons are made against previous studies with ESyS-Particle exhibiting promising behaviour for the modelling of block caving flows. Ongoing studies will examine facets of flow such as fines migration and interactive draw in order to develop constitutive relationships and identify flow mechanisms.
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