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Название Mining with rock backfill at the top of stoping zone in the Aikhal Mine of ALROSA
DOI 10.17580/gzh.2020.01.20
Автор Bokiy I. B., Zoteev O. V., Pul V. V.
Информация об авторе

Yakutniproalmaz Institute, ALROSA, Mirny, Russia:

I. B. Bokiy, Head of Laboratory, Associate Professor, Candidate of Physico-Mathematical Sciences, bokiyib@alrosa.ru
O. V. Zoteev, Chief Researcher, Professor, Doctor of Engineering Sciences
V. V. Pul, Leading Production Design Engineer


The geological structure of the Aikhal kimberlite pipe mined by ALROSA is characterized. The mining system of the deposit is described, where the upper block of the pipe is mined using open pit method and the deep-lying reserves are extracted by underground method with backfilling. Previously, the upper levels of the ore body were mined by open stoping with blind entry drifts, and further on, the transition to the room-and-pillar method was executed. The transition zone between the open stoping and room-and-pillar areas was mined out completely. The authors performed mathematical modeling of the stress–strain behavior in the fill mass in the transition zone. The modeling was carried out by the finite element method using Phase 2 software. The modeling shows the admissible range of the stability criterion and vertical subsidence in stopes during rock backfilling. However, the data analysis points at the necessity to take into account incomplete backfill, which can contribute to joining of caving zones in adjacent chambers. In this regard, the relevant recommendations for safe mining operations are made.

Ключевые слова Kimberlite pipe, ore body, room-and-pillar mining method, backfill, finite element method, geomechanical model, distributed load, modeling
Библиографический список

1. Kolganov V. F., Akishev A. N., Drozdov A. V. Mining-geological peculiarities of primary deposits of Yakutian diamonds. Mirnyy : Mirnyy typography, 2013. 568 p.
2. Pismenniy A. V., Drozdov A. V., Kramskov N. P. Hydrogeological and gas problems of development of diamond deposits at West Yakutia. Gornyi Zhurnal. 2011. No. 1. pp. 67–70.
3. Dik Yu. A., Kotenkov A. V., Tankov M. S. Practice of semi-commercial tests of mineral mining technologies. Ekaterinburg : Izdatelstvo Uralskogo universiteta, 2014. 480 p.
4. Tishkov M. Evaluation of caving as a mining method for the Udachnaya underground diamond mine project. Proceedings of the Fouth International Simposium on Block and Sublevel. Perth : Australian Centre for Geomechanics, 2018. pp. 835–846.
5. Zakharov V. N., Averin A. P., Kubrin S. S. Monitoring and prediction of induced hydro-, gas- and geo-dynamic events in ALROSA mines. Problems and Ways of Efficient Diamond Mining : Scientific-Practical Conference Proceedings. Novosibirsk : Nauka, 2011. pp. 157–160.
6. Belogorodtsev O. V., Gromov E. V., Melnik V. B. Justification of mining methods and their design parameters under production intensification conditions when developing reserves at deep horizons of thick ore deposits. GIAB. 2016. No. 4. pp. 122–130.
7. Kotenkov A. V. Experience of kimberlite mining by diamond-shaped stopes in the Aikhal mine. Gornyi Zhurnal. 2019. No. 9. pp. 9–14. DOI: 10.17580/gzh.2019.09.02
8. Bagde M. N. Characterization of failure modes and planned stabilization measures for the Ajanta caves in India. International Journal of Rock Mechanics and Mining Sciences. 2016. Vol. 81. pp. 12–18.
9. Zubov V. P., Viet C. Q. Practical experience on using mining systems of thickness and sloppiness coalseams under coal-basin Quang Ninh. GIAB. 2015. No. 2. pp. 10–14.
10. Zoteev O. V. Inclusion of mining sequence in estimation of stability of mining structure elements. Izvestia Uralskogo gosudarstvennogo gornogo universiteta. 2000. No. 11. pp. 220–225.
11. Zoteev O. V., Makarov A. B. Calculation procedure of rock mass displacement in cut-and-fill stoping in thick deposits. Problems of Integrated Management of Georesources : IV All-Russian Scientific Conference with Participation of Foreign Scientists. Khabarovsk, 2011. Vol. 1. pp. 52–59.
12. Baryshnikov V. D., Baryshnikov D. V. Arrangement and implementation of undermined backfill subsidence monitoring. GIAB. 2008. No. 12. pp. 256–261.
13. Xiao Y. X., Feng X. T., Li S. J., Feng G. L., Yu Y. Rock mass failure mechanisms during the evolution process of rockbursts in tunnels. International Journal of Rock Mechanics and Mining Sciences. 2016. Vol. 83. pp. 174–181.
14. Poulsen B. A., Adhikary D. P., Elmouttie M. K., Wilkins A. Convergence of synthetic rock mass modelling and the Hoek–Brown strength criterion. International Journal of Rock Mechanics and Mining Sciences. 2015. Vol. 80. pp. 171–180.
15. Nikolaev A. S. Statistical analysis comparing the results of the geomechanical calculations and geological data. Gorny i Zhurnal. 2016. No. 4. pp. 15–20. DOI: 10.17580/gzh.2016.04.03

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