Geomechanics and Engineering

  • 제12권1호
  • /
  • Pages.53-69
  • /
  • 2017
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  • 2005-307X(pISSN)
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  • 2092-6219(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

EMR: An effective method for monitoring and warning of rock burst hazard

  • Song, Dazhao (School of Civil and Resource Engineering, University of Science and Technology Beijing) ;
  • Wang, Enyuan (School of Safety Engineering, China University of Mining and Technology) ;
  • Li, Zhonghui (School of Safety Engineering, China University of Mining and Technology) ;
  • Qiu, Liming (School of Safety Engineering, China University of Mining and Technology) ;
  • Xu, Zhaoyong (School of Safety Engineering, China University of Mining and Technology)
  • 투고 : 2015.11.03
  • 심사 : 2016.01.13
  • 발행 : 2017.01.25
⟨ 이전 논문 다음 논문 ⟩

초록

Rock burst may cause serious casualties and property losses, and how to conduct effective monitoring and warning is the key to avoid this disaster. In this paper, we reviewed both the rock burst mechanism and the principle of using electromagnetic radiation (EMR) from coal rock to monitor and forewarn rock burst, and systematically studied EMR monitored data of 4 rock bursts of Qianqiu Coal Mine, Yima Coal Group, Co. Ltd. Results show that (1) Before rock burst occurrence, there is a breeding process for stress accumulation and energy concentration inside the coal rock mass subject to external stresses, which causes it to crack, emitting a large amount of EMR; when the EMR level reaches a certain intensity, which reveals that deformation and fracture inside the coal rock mass have become serious, rock burst may occur anytime and it's necessary to implement an early warning. (2) Monitored EMR indicators such as its intensity and pulses amount are well and positively correlated before rock bursts occurs, generally showing a rising trend for more than 5 continuous days either slowly or dramatically, and the disaster bursts generally occurs at the lower level within 48 h after reaching its peak intensity. (3) The rank of EMR signals sensitive to rock burst in a descending order is maximum EMR intensity > rate of change in EMR intensity > maximum amount of EMR pulses > rate of change in the amount of EMR pulses.

키워드

과제정보

연구 과제 주관 기관 : National Natural Science Foundation of China, Central Universities

참고문헌

  1. Beck, D.A. and Brady, B.H.G. (2002), "Evaluation and application of controlling parameters for seismic events in hard-rock mines", Int. J. Rock Mech. Min. Sci., 39(5), 633-642. https://doi.org/10.1016/S1365-1609(02)00061-8
  2. Bieniawski, Z.T. (1967), "Mechanism of brittle fracture of rocks. Part I, II and III", Int. J. Rock Mech. Min. Sci. & Geomech. Abstracts, 4(4), 395-404, 405-406, 425-426. https://doi.org/10.1016/0148-9062(67)90030-7
  3. Bieniawski, Z.T., Denkhaus, H.G. and Vogler, U.W. (1969), "Failure of fractured rock", Int. J. Rock Mech. Min. Sci & Geomech. Abstracts, 6(3), 323-330. https://doi.org/10.1016/0148-9062(69)90009-6
  4. Brauner, G. (1994), "Rock bursts in coal mines and their prevention", A.A. Balkema, Rotterdam, The Netherlands.
  5. Caboussata, A. and Miers, G.K. (2010), "Numerical approximation of electromagnetic signals arising in the evaluation of geological formations", Comput. Math. Appl., 59(1), 338-351. https://doi.org/10.1016/j.camwa.2009.06.044
  6. Cook, N.G.W. (1965a), "A note on rock bursts considered as a problem of stability", J. South African Inst. Min. Metal., 65, 437-446.
  7. Cook, N.G.W. (1965b), "The failure of rock", Int. J. Rock Mech. Min. Sci. & Geomech. Abstracts, 2(4), 389-403. https://doi.org/10.1016/0148-9062(65)90004-5
  8. Cook, N.G.W., Hoek, E. and Pretorius, J.P.G. (1965), "Rock mechanics applied to the study of rock bursts", J. South African Inst. Min. Metal., 66(12), 435-528.
  9. Dou, L. and He, X. (2001), Theory and Technology of Rock Burst Prevention, China University of Mining and Technology Press, Xuzhou, China.
  10. Hachay, O., Khachay, O. and Khachay, A. (2014), "New method of active electromagnetic induction and seismic monitoring in oil saturated media", Energy Procedia, 59, 28-35. https://doi.org/10.1016/j.egypro.2014.10.345
  11. He, X., Nie, B. and Chen, W., Wang, E., Dou, L., Wang, Y., Liu, M. and Mitrie, H. (2012), "Research progress on electromagnetic radiation in gas-containing coal and rock fracture and its applications", Safety Science, 50(4), 728-735. https://doi.org/10.1016/j.ssci.2011.08.044
  12. Jaeger J.C., Cook N.G.W. and Zimmerman, R.W. (2007), Fundamentals of Rock Mechanics, Blackwell Publishing Ltd.
  13. Jiang, Y., Zhao, Y., Liu, W. and Zhu, J. (2009), Mechanism of Rock Burst Instability and Experimental Studies, Science Press, Beijing, China.
  14. Jiang, Y., Pan, Y., Jiang, F., Dou, L. and Ju, Y. (2011), "Real time monitoring and measuring early warning technology and development of mine pressure bumping", Coal Sci. Technol., 39(2), 59-64.
  15. Kachakhidze, M.K., Kachakhidze, N.K. and Kaladze, T.D. (2015), "A model of the generation of electromagnetic emissions detected prior to earthquakes", Phys. Chem. Earth, 85-86, 78-81. https://doi.org/10.1016/j.pce.2015.02.010
  16. Koktavy, P., Pavelka, J. and Sikula, J. (2004), "Characterization of acoustic and electromagnetic emission sources", Measure. Sci. Technol., 15(5), 973-977. https://doi.org/10.1088/0957-0233/15/5/028
  17. Li, Y. (1985), "Rock burst mechanism and its preliminary application", J. China Min. Inst., 14(3), 37-43.
  18. Li, Y., Zhang, W. and Wang, S. (1984), "To investigate the mechanism of rock burst", J. Coal Sci. Eng., 9(3), 1-10.
  19. Li, T., Cai, M.F. and Cai, M. (2007), "A review of mining-induced seismicity in China", Int. J. Rock Mech. Min. Sci., 44(8), 1149-1171. https://doi.org/10.1016/j.ijrmms.2007.06.002
  20. Lippmann, H. (1987), "Mechanics of "bumps" in coal mines: A discussion of violet deformation in the sides of roadways in coal seams", Appl. Mech. Review, 40(8), 1033-1043. https://doi.org/10.1115/1.3149548
  21. Lippmann, H. and Cheng, P.F. (1989), "The coal mine "highlight" of mechanics: discussion on both sides of the seam passage severe deformation", Adv. Mech., 19(1), 100-113.
  22. Liu, S. (2013), "Nonlinear catastrophy model and chaotic dynamic mechanism of compound coal-rock unstable failure under coupled staticdynamic", J. China Coal Soc., 39(2), 292-300. [In Chinese]
  23. Mao, C.G. (2005), "Efficient mine microseismic monitoring", Int. J. Coal Geol., 64(1), 44-56. https://doi.org/10.1016/j.coal.2005.03.004
  24. Mastrogiannis, D., Antsygina, T.N., Chishko, K.A., Mavromatou, C. and Hadjicontis, V. (2015), "Relationship between electromagnetic and acoustic emissions in deformed piezoelectric media: Microcracking signals", Int. J. Solids Struct., 56, 118-125.
  25. Martinez-Vega, J. (2013), Dielectric Materials for Electrical Engineering, Wiley, New York, NY, USA.
  26. Miao, X., An, L., Zhai, M., Zhang, X. and Yang, T. (1999), "Model of rock burst for extension of slip fracture in palisades", J. China Univ. Min. Technol., 28(2), 113-117.
  27. Nardi, A. and Caputo, M. (2009), "Monitoring the mechanical stress of rocks through the electromagnetic emission produced by fracturing", Int. J. Rock Mech. Min. Sci., 46(5), 940-945. https://doi.org/10.1016/j.ijrmms.2009.01.005
  28. Ortlepp, W.D. and Stacey, T.R. (1994), "Rock burst mechanisms in tunnels and shafts", Tunn. Undergr. Space Technol., 9(1), 59-65. https://doi.org/10.1016/0886-7798(94)90010-8
  29. Pan, Y., Du, G., Zhang, Y., Wang, L. and Zhang, M. (1998), "An experimental study on the mechanical properties of coal mass after vibrating", Chinese J. Geotech. Eng., 20(5), 44-46.
  30. Pan, Y., Wang, Z. and Zhang, Y. (2008), Application of Catastrophe Theory in Dynamic Instability of Rock Mass System Catastrophe Theory, Science Press, Beijing, China. [In Chinese]
  31. Qi, Q., Shi, Y. and Liu, T. (1997), "Mechanism of instability caused by viscous sliding in rock burst", J. China Coal Soc., 22(2), 144-148.
  32. Rabinovitch, A., Bahat, D. and Frid, V. (1995), "Comparison of electromagnetic radiation and acoustic emission in granite fracturing", Int. J. Fracture, 71(2), 33-41. https://doi.org/10.1007/BF00033758
  33. Rabinovitch, A., Frid, V. and Bahat, D. (2001), "Gutenberg-Richter-type relation for laboratory fracture induced electromagnetic radiation", Phys. Rev., 65(1), 011401-011404.
  34. Rabinovitch, A., Frid, V. and Bahat, D. (2007), "Surface oscillations-A possible source of fracture induced electromagnetic radiation", Tectonophysics, 431(1), 15-21. https://doi.org/10.1016/j.tecto.2006.05.027
  35. Ramulu, M., Chakraborty, A.K. and Sitharam, T.G. (2009), "Damage assessment of basaltic rock mass due to repeated blasting in a railway tunnelling project-A case study", Tunn. Undergr. Space Technol., 24(2), 208-221. https://doi.org/10.1016/j.tust.2008.08.002
  36. Song, D., Wang, E., Li, Z., Zhao, E. and Xu, W. (2015), "An EMR-based method for evaluating the effect of water jet cutting on pressure relief", Arab. J. Geosci., 8(7), 4555-4564. https://doi.org/10.1007/s12517-014-1585-6
  37. Standardization Administration of the P.R. of China (2010), Methods for Test, Monitoring and Prevention of Rock Burst-Part 2: Classification and Laboratory Test Method on Bursting Liability of Coal.
  38. State Administration of Coal Mine Safety (2014), http://www.chinasafety.gov.cn
  39. State Administration of Work Safety (2014), http://www.chinasafety.gov.cn/newpage/aqfx/aqfx_ ndtjfx.htm
  40. Vesela, V. (1996), "The investigation of rock burst focal mechanisms at lazy coal mine, Czech Republic", Int. J. Rock Mech. Min. Sci. & Geomech. Abstracts, 33(8), 380A.
  41. Wang, E. (1997), "The effect of EME & AE during the fracture of coal containing gas and its application", Ph.D. Dissertation; China University of Mining and Technology, Xuzhou, China.
  42. Wang, J. and Park, H.D. (2001), "Comprehensive prediction of rock burst based on analysis of strain energy in rocks", Tunn. Undergr. Space Technol., 16(1), 49-57. https://doi.org/10.1016/S0886-7798(01)00030-X
  43. Wang, E., Liu, X., Zhao, E. and Liu, Z. (2008), "Study of electromagnetic characteristics of stress distribution and sudden changes in the mining of gob-surrounded coal face", J. China Univ. Min. Technol., 18(1), 1-5. https://doi.org/10.1016/S1006-1266(08)60001-2
  44. Wang, E., He, X., Liu, X., Li, Z., Wang, C. and Xiao, D. (2011a), "A non-contact mine pressure evaluation method by electromagnetic radiation", J. Appl. Geophys., 75(2), 338-344. https://doi.org/10.1016/j.jappgeo.2011.06.028
  45. Wang, E., He, X., Wei, J., Nie, B. and Song, D. (2011b), "Electromagnetic emission graded warning model and its applications against coal rock dynamic collapses", Int. J. Rock Mech. Min. Sci., 48(4), 556-564. https://doi.org/10.1016/j.ijrmms.2011.02.006
  46. Xie, H. (1993), "Fractal character and mechanism of rock bursts", Int. J. Rock Mech. Min. Sci. & Geomech. Abstracts, 30(40), 343-350.
  47. Xu, Z. and Xu, X. (1996), "Pillar rock burst catastrophic lag under viscoelastic roof strata", Mech. Eng., 18(3), 47-50.
  48. Xu, Z., Xu, X. and Tang, C. (1995), "Theoretical analysis of a cusp catastrophe bump of coal pillar under hard rocks", J. China Coal Soc., 20(5), 485-491.
  49. Yamada, I., Masuda, K. and Mizutani, H. (1989), "Electromagnetic and acoustic emission associated with rock fracture", Phys. Earth Planet. Interiors, 57(1), 157-168. https://doi.org/10.1016/0031-9201(89)90225-2
  50. Young, R.P., Talebi, S. and Hutchins, D.A. (1989), "Analysis of mining-induced microseismic events at Strathcona Mine, Subdury, Canada", Pure Appl. Geophys., 129(3-4), 455-474. https://doi.org/10.1007/BF00874519
  51. Zhang, M. (1987), "Instability theory and mathematical model for coal/rock bursts", Chinese J. Rock Mech. Eng., 6(3), 197-204.
  52. Zhang, M., Xu, Z. and Pan, Y. (1991), "A united instability theory on coal (rock) burst and outburst", J. China Coal Soc., 16(4), 48-53.
  53. Zhang, X., Hu, G. and Yang, T. (1999), "A stability analysis for time-dependence of plate-beam structure of rock", J. Wuhan Transport. Univ., 23(2), 23-28.
  54. Zhou, X. and Xian, X. (1999), "Experimental study on coal burst proneness index via visco-elastic creep model", West-China Explor. Eng., 11(1), 30-34.

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