Donskoy Ore Mining and Processing Plant, Branch of Kazchrome TNC, Khromtau, Kazakhstan:

R. Sh. Nasyrov, Technical Officer, Ravil.Nasyrov@erg.kz
V. M. Sapunov, Deputy Chief Officer of the Ten Years of Independence of Kazakhstan Mine Construction Phases I and II Management
V. V. Gusarov, Deputy Head of Technical Department

The key ore production object of Donskoy Ore Mining and Processing Plant (aka Donskoy GOK) for the nearest future will be the “Ten Years of Independence of Kazakhstan” mine which is going to commission mining phase II by 2023 with the simultaneous buildup in the output capacity. At the present time, the mine, concurrently with ore production, drives underground openings and sinks a cage shaft. In view of high changeability of rock mass properties, support design along each opening is varied in accordance with the roadheading class (there are 5 roadheading classes in total). Drivage is carried out by drilling-and-blasting with loading of debris in mine cars. The primary operations are implemented using Atlas Copco 282 twin-boom drilling rig and TEREX–SCHAEFF ITC 120-F4 loading machine. It is planned to replace the heading equipment by later machinery. For example, in May 2018, full-scale tests of HAZEMAG HRE 300 roadheading excavator will be started. Application of this equipment will enable reaching sustainable heading rate of 100 m per month.

1. Til V. V., Bekeev M. M., Sashurin A. D. Mastering of deep horizons of chromite deposits in the development strategy of Donskoy Ore-Dressing and Processing Enterprise: problems and ways of solving. Gornyi Zhurnal. 2013. No 5. pp. 17–21.
2. Herbst M., Konietzky H. Numerical modelling of natural rock formations to estimate stability using the example of a sandstone massif in Saxony. Geomechanics and Tunneling. 2012. Vol. 5, No. 4. pp. 379–388.
3. Lomonosov G. G. Industrial processes of underground ore deposit mining. Second edition. Moscow : Gornaya kniga, 2013. 517 p.

4. Abramchuk V. P., Pedchik A. Yu., Kostenko V. V., Medenkov F. G., Chmykhalova S. V. Problems of rock rating according to their mining complexity. Metro i tonneli. 2013. No. 6. pp. 20–22.
5. Lowson A. R., Bieniawski Z. T. Critical assessment of RMR-based tunnel design practices: A practical engineer's approach. Rapid Excavation and Tunneling Conference : Proceedings. Englewood : Society for Mining, Metallurgy, and Exploration, 2013. pp. 180–198.
6. Špaková O., Šejnoha J., Straub D. Tunnel construction time and cost estimates: from deterministic to probabilistic approaches. Proceedings of the 12th International Conference Underground Construction. Prague, 2013. 8 p.
7. Arestegui M. A. Cost Estimation for Underwater Tunnel Projects based on Uncertainty and Risk Analysis. Trondheim : Norwegian University of Science and Technology, 2014. 235 p.
8. Kaplunov D. R. Theory basis of designing of subsoil mastering: formation and development. Gornyi Zhurnal. 2014. No. 7. pp. 49–51.
9. Eremenko V. A., Rylnikova M. V., Esina E. N., Lushnikov V. N. Validation of estimation procedure for areas and values of stress concentration in mines. Gornyy informatsionno-analiticheskiy byulleten. 2014. No. 11. pp. 5–12.
10. Santos V., da Silva A. P. F., Brito M. G. Prediction of RMR Ahead Excavation Front in D&B Tunnelling. Engineering Geology for Society and Territory : Proceedings of the XII IAEG Congress. Cham : Springer, 2015. Vol. 6. Applied Geology for Major Engineering Projects. pp. 415–419.
11. Krupnik L. A., Shaposhnik Yu. N., Shaposhnik S. N., Mametev Yu. I., Ibraev D. S. Experience of introduction of anchor support at underground mines in the Eastern Kazakhstan. Bezopasnost truda v promyshlennosti. 2015. No. 1. pp. 22–25.
12. Aydan Ö., Ulusay R., Tokashiki N. Rock Mass Quality Rating (RMQR) System and Its Application to the Estimation of Geomechanical Characteristics of Rock Masses. Engineering Geology for Society and Territory : Proceedings of the XII IAEG Congress. Cham : Springer, 2015. Vol. 6. Applied Geology for Major Engineering Projects. pp. 769–772.
13. Krupnik L., Shaposhnik Yu., Shaposhnik S. Ways of improvement of technology of anchor support at mining enterprises in Kazakhstan. Inzhenernaya zashchita. 2016. No. 1. pp. 54–59.
14. Eremenko V. A., Aybinder I. I., Patskevich P. G., Babkin E. A. Assessment of the state of rocks in underground mines at the Polar Division of Norilsk Nickel. Gornyy informatsionno-analiticheskiy byulleten. 2017. No. 1. pp. 5–17.
15. Pedchik A. Yu., Chmykhalova S. V., Shevchuk S. V., Shentseva S. V. Allowance for variability of rock mass characteristics along the line of underground excavations in design calculations and cost estimation. Gornyi Zhurnal. 2016. No. 12. pp. 37–39. DOI: 10.17580/gzh.2016.12.08
16. Louchnikov V. N., Eremenko V. A., Sandy M. P., Kosyreva M. A. Support design for mines exposed to rockburst hazard. Journal of Mining Science. 2017. Vol. 53, No. 3. pp. 504–512.