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ArticleName 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
ArticleAuthor Isiyanov O. A., Silkin A. A., Rubtsov S. K., Seleznev A. V.

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:


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.

keywords 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

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