An underground facility to assemble self-propelled equipment was built at a depth of 800 m at the Verkhnyaya mine of Skalisty Mine of the Nornickel’s Polar Division. This was done as part of an investment project to help strip and mine the rich ores of the Talnakhskoye and Oktyabrskoye deposits.
The facility was designed by Gipronickel Institute. Polar Construction Company (part of Nornickel Group) started building the mine workings for the facility in August 2018.
The work involved massive development operations, with over 362 m of mine workings built at a depth of 800 m and a total of about 16,500 cu m of rock broken and extracted. The assembly facility is 86.8 m long, the working’s section area is 72.4 sq m. Some 240 t of metal and 2,718 cu m of concrete were used during the rock bolting works.
The facility to assemble self-propelled equipment is needed in the mine for repairs and SKD assembly of the machinery following overhauls performed on the surface. On top of that, it is used for routine maintenance of all equipment in that underground area.
The facility is furnished with cutting-edge machinery and engineering systems, including three electric overhead travelling (EOT) cranes with a lifting capacity of 16, 3.2, and 2 tonnes respectively. It is fitted with all the necessary machines (grinders, upright drillers, screw-cutting lathes, and milling machines), in-place diagnostics tools for various parts and systems of the self-propelled machinery, welding equipment, etc.
There is also a site to wash the self-propelled equipment prior to repairs and routine maintenance. In addition, the facility includes four machinery inspection pits, niches to store spare parts, materials and fire extinguishing equipment.
The Skalisty mine is a fast growing mine at Nornickel’s Polar Division. Launched in 1986, the mine’s construction was implemented in phases. Its ore field includes the Talnakhskoye and Oktyabrskoye deposits and contains balance reserves of about 60 mt of rich ores in approved projects. The mine’s current production capacity is 2.1 mtpa of rich commercial ore. With gradual ramp-up to the design capacity of 2.4 mtpa, its reserves will last for about
The cost of the Skalisty mine development is estimated at about RUB 134 bn. In 2018, the mine saw the commissioning of a 2,056