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ArticleName Efficiency of modification of the copper–nickel sulfide ore mining system in the Oktyabrsky mine
DOI 10.17580/gzh.2019.11.02
ArticleAuthor Marysyuk V. P., Darbinyan T. P., Andreev A. A., Noskov V. A.

Polar Division, Norilsk Nickel Mining and Metallurgical Company, Norilsk, Russia:

V. P. Marysyuk, Chief Geotechnical Engineer – Director of Center for Geodynamic Safety, Candidate of Engineering Sciences,
T. P. Darbinyan, Director of Mining Practice Department


Scientific Center for Geomechanics and Mining Problems, Saint-Petersburg State Mining University, Saint-Petersburg, Russia:
A. A. Andreev, Leading Engineer
V. A. Noskov, Senior Researcher


In recent decade, high-grade ore reserves in the Oktyabrsky mine field suffer depletion and replacement by lower grade disseminated and cuprous ore. Thus, the growing production of such ore and the related worsening of economic performance points at the advisable modification in the mining system in order to reduce the cost of the backfill preparation. The mine specialists proposed to extract cuprous and disseminated ore reserves with partial backfill and partial overlying rock caving, which can reduce demand for backfill depending on the ratio of filled and unfilled stopes. Given absolute adherence to the mine safety measures and maintenance of the preset production rate, the mining system should be selected with regard to economic performance. The proper choice of the mining system will enable reduction in ore cost, minimization of ore losses and improvement of the financial and economic performance of a mine. The mining system selection is also important in terms of the sound subsoil management, and should ensure minimum loss and dilution in ore production. The most efficient scenarios cause no changes to the extraction indices, which is particularly significant in terms of the multipurpose utilization of ore in the Norilsk industrial district. Although not every mineral production is beneficial today for various reasons (for instance, low demand, or high cost), the multipurpose utilization of mineral raw material should be considered an extra mighty positive influential factor for the financial and economic activities of a mine, as well as for the social-and-economic performance of the region and its economy as a whole. Thus, the geomechanical assessment and economic calculations show all possible grounds for introduction of the analyzed variants of mining systems for cuprous and disseminated ore. At the initial stage of the new technology development and refinement of individual parameters, the introduction of a mining system should be carried out in the mode of a pilot testing.

keywords Mining system, backfilling, overlying rock caving, undermining rock mass movement, mining sequence, economic efficiency

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