Alteration of initial stress state in the north area of the Sokolov deposit in the course of mining

Authors: Mengel’ D.А.

The stress–strain behavior of rocks is one of the major factors which govern the value and nature of strata pressure, while the latter in many ways determines the safety and efficiency of underground mineral mining. The subject of the research is the stress–strain behavior of rock mass in the north of the Sokolov deposit developed by the underground method. The aim of the research is to study the change in the stress–strain behavior in the north area of the Sokolov deposit in the course of mining. The methods of the research involve the analysis of the stress–strain behavior measured instrumentally using the borehole slotter technique and the comparison of the data with the instrumental measurements of acoustic emission by GS-01 device. The analysis yields that mined-out space has influence on the stress–strain behavior of rocks, while the effective loads across the orebody strike beyond the influence zone of the mined-out area remain yet high and approach the initial values.

Keywords: Stress–strain behavior, rock mass, strata pressure, rockburst hazard, geomechanical monitoring, acoustic emission, rockburst hazard signs, rock burst, production safety.
For citation:

Mengel D.A. Alteration of initial stress state in the north area of the Sokolov deposit in the course of mining. MIAB. Mining Inf. Anal. Bull. 2020;(3-1):138-148. [In Russ]. DOI: 10.25018/0236-1493-2020-31-0-138-148.

Acknowledgements:
Issue number: 3
Year: 2020
Page number: 138-148
ISBN: 0236-1493
UDK: 622.831
DOI: 10.25018/0236-1493-2020-31-0-138-148
Article receipt date: 21.11.2019
Date of review receipt: 06.02.2020
Date of the editorial board′s decision on the article′s publishing: 20.03.2020
About authors:

Mengel’ D.А., engineer-technologist of the geomechanics service of the Joint-Stock Company Sokolovsko-Sarbayskoye Mining and Processing Production Association, Republic of Kazakhstan, 111500, Rudny, pr. Lenina, 26, е-mail: mengel.denis@mail.ru.

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Bibliography:

1. Ukazaniya po bezopasnomu vedeniyu gornykh rabot na uchastkakh Sokolovskogo podzemnogo rudnika, sklonnykh k gornym udaram [Guidelines for the safe conduct of mining operations in areas of the Sokolovsky underground mine prone to mountain impacts]. Sverdlovsk, 1988. 77 p. [In Russ]

2. Vloh N.P., Krutikov A.V., Shuplecov Ju. P. Eksperimental’no-analiticheskoe opredelenie NDS massiva na Sokolovskom podzemnom rudnike [Experimental and analytical determination of the stress-strain state of the massif at the Sokolovsky underground mine]. Issledovanie napryazhenii v gornykh porodakh [Study of stress in rocks]: Sb. nauchn. tr.Novosibirsk: IGD SO AN SSSR, 1985, pp. 39—42. [In Russ]

3. Vlokh N.P., Krutikov A.V., Shupletsov Yu. P. Opredelenie prochnosti porod v massive na Sokolovskom podzemnom rudnike [Determination of rock strength in the massif at the Sokolovsky underground mine] Izuchenie svoistv porod v massive geofizicheskimi metodami: Sb. nauch. tr. / IGD SO AN SSSR. Novosibirsk, 1983, pp. 38—42.

4. Turdahunov M.M. Krutikov A.V. Geomechanical support of mining at the Sokolovsky underground mine of the Sokolovsko-Sarbaysky Mining and Processing Production Association Joint Stock Company. Gornyi zhurnal Kazakhstana, 2008, no 2, pp. 25—27. [In Russ]

5. Krutikov A.V., Mengel’ D.A. Primenenie metoda “repernyi linii-fotouprugie datchiki” dlya operativnogo prognoza geomekhanicheskikh yavlenii [Application of the “reference line-photoelastic sensors” method for the operational forecast of geomechanical phenomena] Geomekhanika v gornom dele: doklady Vserossiiskoi nauchno-tekhnicheskoi konferentsii s mezhdunarodnym uchastiem 4–5 iyunya 2014. Ekaterinburg : IGD UrO RAN, 2014, 296 p. [In Russ]

6. Kozyrev A.A., Panin V.I., Savchenko S.N. Geomekhanicheskie issledovaniya i obosnovaniya pri vedenii gornykh rabot na Kol’skom poluostrove [Geomechanical studies and justifications for mining on the Kola Peninsula] Formirovanie osnov sovremennoi strategii prirodopol’zovaniya v Evro-Arkticheskom regione: sb. nauch. tr. Apatity: KNTs RAN, 2005, pp. 122—131. [In Russ]

7. Krinitsyn R.V., Mengel’ D.A., Selin K.V. Issledovanie parametrov napryazhennodeformirovannogo sostoyaniya massiva gornykh porod shakhty “Sokolovskaya” AO “SSGPO” [The study of the parameters of the stress-strain state of the rock mass of the mine “Sokolovskaya” of the joint-stock company “Sokolovsko-Sarbaisky mining and processing production association”] Nauchno-tekhnicheskoe obespechenie gornogo proizvodstva. Trudy Instituta gornogo dela im. D.A. Kunaeva. Almaty, 2019, vol.89, 346 p. [In Russ]

8. Opredelenie napryazhenii metodom shchelevoi razgruzki, pri razlichnykh parametrakh razgruzochnoi shcheli [Determination of stresses by the method of slotted discharge, with various parameters of the discharge gap]. Ekaterinburg, IGD UrO RAN, 2014, p. 12. [In Russ]

9. Ryzhov P.A. Matematicheskaya statistika v gornom dele [Mathematical statistics in mining] Moscow: «Vyssh. shkola», 1973. 287 p. [In Russ]

10. Chotchaev Kh. O. Monitoring of the stress-strain state of the rock mass using sound and geophysical methods. Geologiya i geofizika Yuga Rossii, 2016, no 3, pp. 129—140. [In Russ]

11. Konurin A.I., Eremenko A.A., Filippov V.N. Features of assessing the state of a rock mass during industrial explosions and geodynamic phenomena. MIAB. Mining Inf. Anal. Bull. 2017, no 7, pp. 153—160.

12. Xuelong L., Enyuan W., Zhonghui L., Zhentang L., Dazhao S., Liming Q. Rock Burst Monitoring by Integrated Microseismic and Electromagnetic Radiation Methods. Rock Mechanics and Rock Engineering, November 2016, Volume 49, Issue 11, pp. 4393–4406.

13. Jing L., Jianhua Y., Yong Y., Xinzhong Z., Li Z. Multi-Resolution Feature Fusion model for coal rock burst hazard recognition based on Acoustic Emission data, Measurement, March 2017, Volume 100, pp. 329—336.

14. Moradian Z., Einstein H.H., Ballivy G. Detection of Cracking Levels in Brittle Rocks by Parametric Analysis of the Acoustic Emission Signals. Rock Mechanics and Rock Engineering, March 2016, Volume 49, Issue 3, pp. 785–800.

15. Wasantha P.L. P., Ranjith P.G., Shao S.S. Energy monitoring and analysis during deformation of bedded-sandstone: Use of acoustic emission. Ultrasonics, January 2014, Volume 54, Issue 1, pp. 217—226.

16. Voza A., Valguarnera L., Fuoco S., Ascari G., Boldini D., Buttafoco D. Acoustic emissions from flat-jack test for rock-burst prediction. Tunnels and Underground Cities. Engineering and Innovation Meet Archaeology, Architecture and Art. Proceedings of the WTC 2019 ITA-AITES World Tunnel Congress (WTC 2019), May 3—9, 2019, Naples, Italy.

17. Storozhenko A.G. Razrabotka sposoba prognoza stepeni udaroopasnosti na osnove issledovanii akusticheskoi emissii gornykh porod [Development of a method for predicting the degree of shock hazard based on studies of acoustic emission of rocks]. Ph’d thesis. Leningrad, VNIMI, 1983, 15 p. [In Russ]

18. Aksenov A.A., Ozhiganov I.A., Gubanov D.V., Blinov E.F. Primenenie kompleksnoi sistemy profilaktiki gornykh udarov [The use of an integrated system of mountain impact prevention] Gornaya geomekhanika i marksheiderskoe delo, Sb. nauchn. tr. Saint-Petersburg: VNIMI, 2009, pp. 90—92. [In Russ]

19. Aksenov A.A., Ozhiganov I.A.. Impact hazard forecast and assessment of the stress state of an ore deposit array using the acoustic emission method. Gornyi zhurnal. 2011, no 7, pp. 40–43. [In Russ]

20. Turdakhunov M.M., Urdubaev R.A., Ermakashev T.R., Krutikov A.V., Nefedov V.N., Mengel’ D.A., Aksenov A.A. Prediction of the impact hazard of an array by acoustic emission. Gornyi zhurnal Kazakhstana, 2010, no 8, pp. 13—16. [In Russ]

21. Mengel’ D.A. Problemy i osobennosti obosnovaniya kriteriev udaroopasnosti porod dlya metoda akusticheskoi emissii (AE) v nizkoprochnykh i napryazhennykh skal’nykh massivakh [Problems and features of substantiation of the criteria for rock impact hazard for the acoustic emission method (AE) in low-strength and stressed rock masses]. Geomekhanika v gornom dele: doklady Vserossiiskoi nauchno-tekhnicheskoi konferentsii s mezhdunarodnym uchastiem 1–3 oktyabrya 2013. Ekaterinburg, IGD UrO RAN, 2014, 516 p.

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