Journals →  Gornyi Zhurnal →  2014 →  #5 →  Back

PHYSICS AND MECHANICS OF ROCKS
ArticleName Peculiarities of geomechanical provision of mastering of deep iron ore deposits
ArticleAuthor Eremenko V. A., Gakhova L. N., Esina E. N., Zinchenko D. N.
ArticleAuthorData

Institute of Problems of Comprehensive Exploration of Subsoils of Russian Academy of Sciences (Moscow, Russia):

Eremenko V. A., Leading Researcher, Doctor of Engineering Sciences
Esina E. N., Senior Researcher, Candidate of Engineering Sciences

 

N. A. Chinakal Institute of Mining of Siberian Branch of Russian Academy of Sciences (Novosibirsk, Russia):

Gakhova L. N., Senior Researcher

 

«Abakanskiy rudnik» LLC (Abaza, Russia):

Zinchenko D. N., Head of Department of Forecasting and Preventing of Rock Bumps

 

Leading Engineer of the Site of LLC «Abakanskiy rudnik» E. V. Matveeva was the participant in this work.

Abstract

This article gives the recommendations, which make possible to carry out complex geomechanical provision of mastering of deposits in the time of transition of mining to deep depths. Research of physical and mechanical characteristics of rocks is necessary together with definition of values and direction of activity of principal stresses. It is also necessary to apply the methods of numerical modeling, which make possible to develop the optimal parameters of working excavations on the projecting stage with provision of safety and increasing of efficiency of mining operations. Taking into account the carried out laboratory and natural researches, and practical experience of mastering of iron ore deposits, there is recommended to carry out the development of ore bodies by sublevel systems. There was defined, that the depth of spreading of areas of stresses' concentration depends on sizes of processed units and waste areas. In complex geomechanical conditions, the best way of stabilization of rock pressure is increasing of project of waste area in the region of split blocks due to accelerated development of first blocks in the floor. When the waste area is higher than working thickness of ore body, the depth of spreading of inelastic deformation areas is decreased. Observation method of control of displacements with drilling of measurement wells was offered for the purpose of definition of areas of rock damage around excavations, working excavation and monitoring of shear deformation.
This work was carried out within the Program of Fundamental Researches of the Department of Earth Sciences «Fundamental problems and prospects of use of potential of complex mastering of subsoils on the basis of development of resource-saving and resource-reproducing geotechnologies».

keywords Deep horizons, development system, geomechanical provision, physical-mechanical characteristics of rocks, stresses, deformations, numerical modeling
References

1. Kurlenya M. V., Eremenko A. A., Tsinker L. M., Shrepp B. V. Tekhnologicheskie problemy razrabotki zhelezorudnykh mestorozhdeniy Sibiri (Technological problems of development of iron ore deposits of Siberia). Novosibirsk : Nauka, 2002, 240 p.
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. Sixth International Seminar on Deep and High Stress Mining 2012. Perth 2012, 8-30 March 2012, Australia, pp. 443–450.
3. Ukazaniya po bezopasnomu vedeniyu gornykh rabot na Abakanskom mestorozhdenii, sklonnom k gornym udaram (Regulations on safe carrying out of mining operations on Abakan deposit, inclined to rock bounces). Novokuznetsk : Eastern Scientific-Research Ore Mining Institute, 2002, 90 p.
4. Makarov A. B. Prakticheskaya geomekhanika. Posobie dlya gornykh inzhenerov (Practical geomechanics. Tutorial for mining engineers). Moscow : Gornaya kniga, 2006, 391 p.
5. Eremenko V. A., Lushnikov V. N., Sandy M. P., Milkin D. A., Milshin E. A. Gornyi Zhurnal — Mining Journal, 2013, No. 7, pp. 59–66.
6. Sandy М. Р., Lushnikov V. N., Eremenko V. A., Bucher R. Gornyi Zhurnal – Mining Journal, 2013, No. 10, pp. 73–78.
7. Bucher R., Cala M., Zimmermann A., Balg C. and Roth A. Large scale field tests of hightensile steel wire mesh in combination with dynamic rock bolts subjected to rock burst loading. 7th International Symposium on Ground Support in Mining and Underground construction. Perth 2013, 13-15 May 2013, Australia.
8. Kurlenya M. V., Baryshnikov V. D., Gakhova L. N. Fiziko-tekhnicheskie problemy razrabotki poleznykh iskopaemykh — Journal of Mining Science, 2012, No. 4, pp. 20–28.
9. Bronnikov D. M., Zamesov N. F., Bogdanov G. I. Razrabotka rud na bolshikh glubinakh (Development of ores on deep depths). Moscow : Nedra, 1982, 292 p.
10. Eremenko V. A., Lobanov E. A., Kotlyarov A. A., Lushnikov V. N., Malovichko D. N. Gornyi Zhurnal — Mining Journal, 2012, No. 9, pp. 26–30.

Language of full-text russian
Full content Buy
Back