Institute of Comprehensive Exploitation of Mineral Resources of Russian Academy of Sciences, Moscow, Russia:

Eremenko V. A., Leading Researcher, Doctor of Engineering Sciences, e-mail: eremenko@ngs.ru

“EVRAZRUDA” JSC, Novokuznetsk, Russia:

Lobanov E. A., Chief Miner

Kotlyarov A. A., Leading Design Specialist

Coffey Mining Limited Company, Perth, Australia:

Lushnikov V. N., Head of Department

Institute of Mine Seismology, Hobart, Australia:

Malovichko D. A., Head of Department, Candidate of Physical and Mathematical Sciences

Due to the increasing of mining depth, the high stress concentration zones have an influence on the rock massif state. The high stress concentration zones cross the blocks under concentration, which are adjacent to working excavation. This paper considers the aim of reducing the detirmental effect of huge blasts on geodynamic environment during the development of bump hazardous iron ore deposits of Western Siberia. According to this, there were substantiated the technological parameters of development of bump hazardous ore locus with ore breaking, using the holes with a diameter by 250 millimeter on the pressed environment. Using the developed geotechnological parameters of the blocks excavation with layer breaking by parallel-conjoined explosive charges with increased diameter on the pressed environment, allows to control the rock pressure, due to the decreasing of the blast influence on rock massif, near the broken block. There is forecasted the considerable decreasing of the quantity of dynamic phenomenon with high energetic class, especially in and around the undercutting area and bottom of blocks. The economic effect is reached due to the cost cutting for the recovery after the single blasts and dynamic phenomenon, as well as after using the holes with increased diameter.

2. Eremenko V., Eremenko А., Gakhova L., Klishin I. Finding zones of stress concentrations and seismic events in deep ore mining affected by high horizontal stresses: 6 International Seminar on Deep and High Stress Mining 2012. 28–30 March 2012. Australia, Perth, 2012, pp. 443–450.

3. Dubynin N. G., Vlasov V. N., Kovalenko V. A. et al. Gornyi Zhurnal — Mining Journal, 1975, No. 12, pp. 21–22.

4. Eremenko A. A., Eremenko V. A., Gaydin A. P. Sovershenstvovanie geotekhnologii osvoeniya zhelezorudnykh udaroopasnykh mestorozhdeniy v usloviyakh deystviya prirodnykh i tekhnogennykh faktorov (Improvement of the development geotechnology of iron ore bump hazardous deposits under the natural and anthropogenic factors). Novosibirsk : Nauka, 2008, 312 p.

5. Burmin G. M. Razrabotka konstruktivnykh i tekhnologicheskikh rekomendatsiy, napravlennykh na povyshenie ustoychivosti dnishch blokov, nizhney podsechki i snizheniya poter rudy pri vypuske v usloviyakh Abakanskogo mestorozhdeniya (Development of constructive and technological recommendations, directed to the increasing of blocks bottoms stability, low undercutting, and reduction of ore losses with the output of Abakan deposit). Novosibirsk : Eastern Scientific and Research Mining Institute, 2001, 125 p.

6. Viktorov S. D., Eremenko A. A., Zakalinskiy V. M., Mashukov I. V. Tekhnologiya krupnomasshtabnoy vzryvnoy otboyki na udaroopasnykh rudnykh mestorozhdeniyakh Sibiri (Technology of large-scale blast undercutting on bump hazardous Siberian ore deposits). Novosibirsk : Nauka, 2005, 212 p.

7. Bayborodov Ya. N., Eremenko V. A. Gornyy Informatsionno-Analiticheskiy Byulleten — Mining Informational and Analytical Bulletin, 2012, No. 3, pp. 305–308.

8. Mendecki A. J. Seismic monitoring in mines. London : Chapman and Hall, 1997, 262 p.

9. Mendecki A. J., Malovichko D. A. Monitoring seysmicheskogo otklika massivov gornykh porod na razrabotku (Monitoring of the seismic response of rock massif on the development). Voprosy obrabotki i interpretatsii geofizicheskikh nablyudeniy. Materialy nauchno-prakticheskoy konferentsii (Questions of the processing and interpretation of geophysical survey. Materials of scientific and practical conference). Obninsk, Perm : Geophysical service of Russian Academy of Sciences, Perm State Scientific and Research University, 2012, pp. 146–166.

10. Eremenko V. A., Semenyakin E. N. Gornyy Informatsionno-Analiticheskiy Byulleten — Mining Informational and Analytical Bulletin, 2012, No. 4, pp. 67–68.