Capacity of Direct Dumping in Mixed-Type Technologies of Opencast Solid Mineral Mining
V. I. Cheskidov, V. L. Gavrilov, A. V. Reznik, N. A. Nemova
Chinakal Institute of Mining, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russia
Keywords: Mineral deposit, solid minerals, mixed-type mining systems, direct dumping, process flowsheets, re-excavation, internal dumps, environmental safety
Abstract
The article discusses capacities and benefits of stripping with direct dumping within the mixed-type mining technologies for structurally complex deposits of solid minerals. The authors emphasize practicality of this technology in different geological and geotechnical conditions of mineral mining, and develop a procedure to determine a reasonable application range of the technology within the mixed-type mining systems. The resource-saving process flowsheets are proposed for dragline mining of centroclinal fold-type, water-encroached and steeply dipping bedded deposits. The most feasible ways of enhancing efficiency of overburden removal with direct dumping are discussed.
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