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Journal of Mining Sciences

2019 year, number 6

Stress State of Conical Granular Pile

A. P. Boryakov, S. V. Klishin, A. F. Revuzhenko
Chinakal Institute of Mining, Siberian Branch, Russian Academy of Sciences, Novosibirsk, 630091 Russia
Keywords: сыпучий материал, коническая насыпь, лабораторный эксперимент, напряжение, датчик, численная модель, метод дискретных элементов, Granular material, conical pile, laboratory experiment, stress, sensor, numerical model, discerete element method


The authors analyze the effect revealed at the Institute of Mining, SB RAS in the 1970s. This effect consists in a noticeable off-center displacement of the maximum normal pressure on the bottom of a conical pile when heaped. The new experimental data are presented. The stress-stress analysis of the pile between two parallel smooth plates is solved using a 3D discrete element method. The calculations prove the indicated effect.