Electrical Tomography Exploration of Rock Slide-Hazardous Pitwalls
S. V. KLISHIN1, V. I. KLISHIN2, G. YU. OPRUK2
1N.A. Chinakal Institute of Mining, Siberian Branch, Russian Academy of Sciences, Krasnyi pr. 54, Novosibirsk, 630091 Russia
2Institute of Coal, Siberian Branch, Russian Academy of Sciences, Leningradskii pr. 10, Kemerovo, 650065 Russia
Keywords: underground coal mining, technology, discharge, powered support, gravity flow, physical model, laboratory experiment, numerical model, discrete element method
Abstract
The physical and analytical modeling of coal discharge in thick coal mining by sublevel caving involves the method when coal is discharged under grvaity on the powered support units and is proportioned-fed to a face conveyor placed between the support units. Based on the physical modeling, the authors put forward a mathematical model to study the gravity flow of granular material in three dimensional formulation using discrete elements.
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