Organization of dumping stations with combined transport types in iron ore deposits mining
O. Shustov1 , A. Dryzhenko1
1 Opencast Mining Department, National Mining University, Dnipropetrovsk, Ukraine
Min. miner. depos. 2016, 10(2):78-84
https://doi.org/10.15407/mining10.02.078
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ABSTRACT
Purpose.To develop the methodology for selecting appropriate type of open-pit transport in conditions of mining sinking to the maximum depth of opencast mining.
Methods. Comprise determining costs for maintenance of open-pit transport in different combinations of in-pit and main line together with dumping stations of the relevant construction for small, middle and large extension pits.
Findings. The proposed optimization of dumping stations placement with combined operation of automobile and railway vehicles allows to exclude utilization of dumping excavators. The efficiency of dumping stations building of block structures is confirmed which allows to decrease total number of dump trucks by 20 – 30% for the average rock transportation distance of about 1.5 – 2 km. The arrangement of dumping stations in the goaf on barrow benches with their further exploitation proves the possibility of effective mining of inclined and upridging deposits.
Originality. consists in determination of the application field for various types of open-pit transport in changing working area parameters. They are related to sinking of mining, mining intensity and formation of goaf for mining waste storage.
Practical implications. The research results allow to develop recommendations for using economical types of transport in accordance with the established open-pit mining mode.
Keywords: type of open-pit transport, dumping station, mining mode, pit capacity, sinking rate of mining, working area, goaf, inside dumps
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