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Название Features of selective extraction technology for thin ore bodies in underground mines of Priargunsky Industrial Mining and Chemical Union
DOI 10.17580/gzh.2015.02.06
Автор Isiyanov O. A., Silkin A. A., Rubtsov S. K., Seleznev A. V.
Информация об авторе

Author 1:
Name & Surname: Isiyanov O. A.
Company: Priargunsky Industrial Mining and Chemical Union (Krasnokamensk, Russia)
Work Position: Head of Engineering Office


Author 2:
Name & Surname: Silkin A. A.
Company: VNIPIpromtekhnologii JSC (Moscow, Russia)
Work Position: Head of laboratory
Scientific Degree: Candidate of Engineering Sciences

Contacts: e-mail: Silkin.A.A.@vnipipt.ru


Author 3:
Name & Surname:  +Rubtsov S. K.
Company: VNIPIpromtekhnologii JSC (Moscow, Russia)
Work Position: Principal Researcher
Scientific Degree: Doctor of Engineering Sciences


Author 4:
Name & Surname: Seleznev A. V.
Company: VNIPIpromtekhnologii JSC (Moscow, Russia)
Work Position: Head of Research Department
Scientific Degree: Candidate of Engineering Sciences


the related substantiation of rational groups of small-size equipment and selective ore breaking and excavation aimed at minimization of ore dilution, increase in price of marketable uranium ore as compared with breaking-out in bulk and, thus, satisfactory efficiency of mining of ore bodies less than 1.5 m thick. Based on the analysis of small-size drilling units and load-haul-dumpers, which are in operation in mines and manufactured by various plants, five alternatives of machine grouping are offered for operation in various cross-section stopes and in various working conditions, and the optimum machine group is selected by the criteria of productivity, reliability and cost. Technologies of selective drilling-and-blasting, actual mining and separate ore and barren rock haulage are described. Aiming at higher efficient selective mining of thin ore bodies, the article makes recommendations on: flow chart of scenarios of selective breaking and mining of ore and barren rocks; improved alternatives of downward horizontal slicing with shothole blasting and solidifying backfilling; mining method for thin veins with selective extraction of ore by short vertical cuts (columns) with shothole blasting and barren rock shrinkage in mined-out area. Economical evaluation of crude and high-grade ore extraction from thin ore bodies is given with regard to the recommended technological innovations.

Ключевые слова Streltsovsk uranium ore field, thin ore bodies selective and bulk mining, stopes, small-size drilling and load-haul-dump machines, mining methods and technologies, economic evaluation
Библиографический список

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Language of full-text русский
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