Журналы →  Gornyi Zhurnal →  2019 →  №2 →  Назад

Название Analysis of rock cushion subsidence during mining with caving in western section of the Udachnaya pipe
DOI 10.17580/gzh.2019.02.08
Автор Bokiy I. B., Zoteev O. V., Pul V. V.
Информация об авторе

Yakutniproalmaz Institute, PJSC ALROSA, Mirny, Russia:

I. B. Bokiy, Head of Laboratory, Associate Professor, Doctor of Physical–Mathematical Sciences, bokiyib@alrosa.ru
O. V. Zoteev, Chief Researcher, Professor, Doctor of Engineering Sciences


Mirny Polytechnic Institute (Branch), Ammosov North-Eastern Federal University, Mirny, Russia:
V. V. Pul, Assistant


Geology of the Udachnaya kimberlite pipe operated by ALROSA is characterized. The method of development of the deposit is described—the upper part of the pipe is mined-out by the open pit method. The deeper level reserves are extracted using the methods with caving. One of the issues is the risk of freezing of muck pile with subsequent accumulation of free water in the open pit, which, in turn, imposes hazard of hydrodynamic accident in the mine. An engineering solution for prevention of possible accident scenario is ore drawing from ore passes arranged along the whole length of a level, which enables flow of unconsolidated material with disaggregation of the frozen rocks. The monitoring project provides scheduled survey of muck pile surface in order to control the process of muck pile buildup. However, the results of the monitoring obtained in the period when mine reached project capacity show that subsidence of the rock cushion is significantly less than it has been estimated. The  analysis of possible causes of such a deviation from predicted scenario allowed proving that, although this deviation was due to imperfect operational practices, it could not initiate hydrodynamic accidents.

Ключевые слова Kimberlite pipe, safety cushion, filtration properties, survey observations, subsidence, freezing, scanning error
Библиографический список

1. Kolganov V. F., Akimov A. N., Drozdov A. V. Mining and geological features of primary diamond deposits in Yakutia. Mirny : Mirninskaya tipografia, 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. Yekaterinburg : Ural. Universitet, 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. Sokolov I. V., Smirnov A. A., Antipin Yu. G., Nikitin I. V., Tishkov M. V. Substantiation of Protective Cushion Thickness in Mining under Open Pit Bottom with the Caving Methods at Udachnaya Pipe. Journal of Mining Science. 2018. Vol. 54.
6. Kovalenko A. A., Tishkov M. V. Evaluation of the Udachnaya pipe deposit underground mining using caving system. GIAB. 2016. No. 12. pp. 134–145.
7. Sokolov I. V., Smirnov A. A., Antipin Yu. G., Kulminsky A. S. Development of under-quarry pit reserves of Udachnaya tubes in hard climate, mining and hydrogeological conditions. Gornyi Zhurnal. 2011. No. 1. pp. 63–66.
8. Mulgrew I. SRK: 40 Years in the Deep End. Canada, 2014. 294 p.
9. Laubscher D., Guest A., Jakubec J. Guidelines on Caving Mining Methods : The Underlying Concepts. Queensland : The University of Queensland, 2017. 282 p.
10. Yunjin H., Guolong C., Weiping C., Zhenjun Y. Simulation of hydraulic fracturing in rock mass using a smeared crack model. Computers and Structures. 2014. Vol. 137. pp. 72–77.
11. Zakharov V. N., Averin A. P., Kubrin S. S. Monitoring and prediction of induced hydro-, gas- and geodynamic events in ALROSA mines. Problems and Ways of Efficient Diamond Mining : Scientific–Practical Conference Proceedings, Novosibirsk : Nauka, 2011. pp. 157–160.
12. 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.
13. 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.
14. Ghabraie B., Ren G., Smith J., Holden L. Application of 3D laser scanner, optical transducers and digital image processing techniques in physical modelling of mining-related strata movement. International Journal of Rock Mechanics and Mining Sciences. 2015. Vol. 80. pp. 219–230.
15. 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.
16. Makarov A. B., Ananin A. I., Mosyakin D. V. Weakening of failed rocks and sinking conditions. Gornyi Zhurnal. 2017. No. 3. pp. 32–36. DOI: 10.17580/gzh.2017.03.06
17. Potapchuk M. I., Tereshkin A. A., Rasskazov M. I. Assessment of geomechanical condition of rock massif in the process of development of difficult-structured ore bodies by the sublevel drifts system with the controlled roof caving. GIAB. 2015. No. 12. pp. 39–45.

Language of full-text русский
Полный текст статьи Получить