APPLICATION OF COMPUTER MODELING METHODS FOR JUSTIFICATION OF PERSPECTIVE OPENING METHODS OF ORE DEPOSITS OF THE KOLA MINING SECTOR OF THE BARENTS EURO-ARCTIC REGION
The article presents the examples of implementation of algorithms for selection and justification of deposits opening scheme parameters in underground and combined methods of development using modern automated (including robotic) modes of transport. The objects of research were deposits of the Kola sector of the Barents Euro-Arctic region (BEAR) of Russia, namely: Kovdor deposit of complex iron ores, developed by the open-pit “Zhelezny”, deposits of apatite-nepheline ores “Oleniy Ruchey” and “Partomchorr”. As a result of the research carried out for “Zhelezny” mine, the expediency of opening of the quarry reserves by the workings of the future underground mine when reaching 300 m with the use of inclined conveyor shafts, tunnels (stage 1) and ore passes, passed from the bottom of the quarry is justified. For the field “Oleniy Ruchey” the opening scheme with application of a combination of horizontal and inclined radial belt conveyors with allocation of the intermediate stage providing possibility of systematic development of works with an exit to design productivity is offered. For “Partomchor” reserve deposit the dependences of the specific costs of transportation and lifting of ore, allowing to choose the most efficient methods of opening at different values of the annual productivity of the mine in the future are identified. It is shown that the implementation of the proposed approaches based on the integration of methods of three-dimensional and economic-mathematical modeling can improve the economic efficiency and safety of mining operations on the studied objects.