Influence of cargo traffic of overburden excavated volume on potential production capacity in open pit mining of inclined coal measures

The article discusses feasibility of production capacity control in an open pit mine by variation of cargo traffic of overburden excavated volume in continuous cutting of inclined coal measures. The graphical analysis of the revealed patterns produces parameters of excavation process flow charts, which reduce the scope of transportation at the preset production capacity of an open pit coal mine. Within the ranges of the varied parameters of the cutting width, height of dragline removal of broken overburden rock disintegration and the height of the dragline operation site over the roof of the top coal seam in the measure, the patterns of the potential production capacity of an open pit coal mine and the overburden haulage distance, which govern the volume of cargo traffic of overburden excavated volume, are determined. Technologically, it is possible to reduce haulage distance by placing truck-hauled overburden in the mined-out area of the pit. This is feasible through redistribution of excavation volumes of mining with direct dumping and truck-and-shovel mining. Reduction in the height of dragline removal of broken overburden rock disintegration enables using the resultant vacant area for internal dumping with dump trucks, which allows reducing the weighted-average distance of overburden haulage with the simultaneous increase in the production capacity of an open pit coal mine.

Sidorov V. V., Kosolapov A. I. Influence of cargo traffic of overburden excavated volume on potential production capacity in open pit mining of inclined coal measures. MIAB. Mining Inf. Anal. Bull. 2022;(4):33-42. [In Russ]. DOI: 10.25018/0236_1493_2022_4_0_33.

V.V. Sidorov¹, Graduate Student, e-mail: bestII@mail.ru, ORCID ID: 0000-0001-6281-0736,
A.I. Kosolapov¹, Dr. Sci. (Eng.), Professor, Head of Chair, e-mail: Kosolapov1953@mail.ru, ORCID ID: 0000-0002-8251-9679,
¹ Siberian Federal University, Institute of mining, geology and geotechnologies, 660025, Krasnoyarsk, Russia.

V.V. Sidorov, e-mail: bestII@mail.ru.

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