PREDICTION AND PREVENTION OF GEODYNAMIC EVENTS DURING PREPARATION OF AN OREBODY BLOCK FOR EXTRACTION AT TASHTAGOL DEPOSIT

Based on assessment of stress state of rocks, prediction of geodynamic events is carried for the period of preparation of extraction block 6 in the East Site of Tashtagol deposit using electrometry and deep-seated strain metering. All in all, 200 measurements were taken. In the adjacent rock mass of the extraction block, more than 70 geodynamic events were recorded. It was found that flat and steeply dipping fractures in rock mass surrounding extraction block 6 as well as a tectonic dislocation 1–3 m wide induced geodynamic activity during mining. Aimed to reduce stresses and create a protection zone, choke fan blasting with different delays was carried out, which allowed relocating bumps into the depth of rock mass and reduced geodynamic activity in the mining zone.

Keywords

Electrometry, rockburst hazard, protection zone, choke blasting, fan drilling.

Issue number: 5
Year: 2018
ISBN:
UDK: 622.831
DOI: 10.25018/0236-1493-2018-5-0-74-80
Authors: Filippov V. N., Eremenko A. A., Aleksandrov A. N., etc.

About authors: Filippov V.N. (1), Candidate of Technical Sciences, Senior Researcher, e-mail: filippov144@yandex.ru, Eremenko A.A. (1), Doctor of Technical Sciences, Professor, Deputy Director for Science, e-mail: yeryom@misd.nsc.ru, Aleksandrov A.N. (1), Researcher, e-mail: aan@ngs.ru, Matveev I.F., Doctor of Technical Sciences, Head of Technical Control Department of Tashtagol Group of «Evrazruda» LTD, 652970, Tashtagol, Kemerovo Region, Russia, e-mail: Igor.Matveev@evraz.com, Shtirts V.А., Chief of the Rockburst Prediction and Prevention Service, Tashtagol Division, «Evrazruda» LTD, 652970, Tashtagol Kemerovo Region, Russia, e-mail: Vladimir.Shtirts@evraz.com, Khristolyubov E.A., Deputy Head of Technical Department, Gornaya Shoria Division, «Evrazruda» LTD, 652971, Sheregesh, Kemerovo Region, Russia, e-mail: Evgeny.Khristolyubov@evraz.com, 1) Chinakal Institute of Mining of Siberian Branch of Russian Academy of Sciences, 630091, Novosibirsk, Russia.

REFERENCES:

1. Eremenko A. A., Eremenko V. A., Gaydin A. P. Sovershenstvovanie geotekhnologii osvoeniya zhelezorudnykh udaroopasnykh mestorozhdeniy v usloviyakh deystviya prirodnykh i tekhnogennykh faktorov (Improvement of geotechnology for rockburst-hazardous iron ore mining under influence of natural and induced factors), Novosibirsk, Nauka, 2008.

2. Eremenko A. A., Eremenko V. A., Gaydin A. P. Gorno-geologicheskie i geomekhanicheskie usloviya razrabotki zhelezorudnykh mestorozhdeniy v Altae-Sayanskoy skladchatoy oblasti (Geological and geomechanical conditions of iron ore mining in the Altai-Sayan folded area), Novosibirsk, Nauka, 2009.

3. Freydin A. M., Neverov S. A., Neverov A. A., Konurin A. I. Gornyy zhurnal. 2016, no 2, pp. 39—45.

4. Neverov A. A.,Konurin A. I., Shaposhnik Yu. N., Neverov S. A.,Shaposhnik S. N. Geomechanical substantiation of sublevel-chamber system of developing with consolidating stowing. 16th International Multidisciplinary Scientific Geoconference, SGEM 2016: science and technologies in geology, exploration and mining, vol. II, jun. 30-jul. 06, 2016. Albena, Bulgaria. Pp. 443—450. WOS:000395499700058

5. Shtirts V. A., Eremenko A. A., Konurin A. I., Klishin I. V. Gornyy informatsionno-analiticheskiy byulleten'. 2015, no 7, pp. 196—206.

6. Bashkov V. I., Shtirts V. A., Eremenko A. A., Konurin A. I. Fundamental'nye i prikladnye voprosy gornykh nauk. 2015, no 2, pp. 205—213.

7. Eremenko V. A., Neguritsa D. L. Efficient and active monitoring of stresses and strains in rock masses. Eurasian Mining. 2016, no 1 (25). Pp. 21—24.

8. Eremenko V. A., Esina E. N., Semenyakin E. N. Gornyy zhurnal. 2015, no 8, pp. 42—47.

9. Kelly B. Stress analysis for boreholes on department of defense lands in the western United States: A study in stress heterogeneity. Proceedings, Thirty-Eighth Workshop on Geothermal Reservoir Engineering. Stanford University, Stanford, California, February 11—13. 2013. Pp. 139—150.

10. Reiter K., Heidbach O. 3-D geomechanical-numerical model of the contemporary crustal stress state in the Alberta Basin (Canada). Solid Earth, 5 (2). 2014. pp. 1123—1149. doi: 10.5194/se-5-1123-2014 doi: 10.1130/L238.1

11. Rukovodstvo po proektirovaniyu, organizatsii i provedeniyu massovykh vzryvov na podzemnykh rudnikakh filialov Evrazrudy (Guidelines on production blasting design, arrangement and implementation in underground mines of EVRAZruda), Novokuznetsk, VostNIGRI, 2008.

12. Konurin A. I., Eremenko A. A., Filippov V. N. Gornyy informatsionno-analiticheskiy byulleten'. 2017, no 7, pp. 153—160.

Our partners

Подписка на рассылку

Раз в месяц Вы будете получать информацию о новом номере журнала, новых книгах издательства, а также о конференциях, форумах и других профессиональных мероприятиях.