Mechanism and monitoring and early warning technology for rockburst in coal mines

Xue-qiu He; Chao Zhou; Da-zhao Song; Zhen-lei Li; An-ye Cao; Shen-quan He; Majid Khan

doi:10.1007/s12613-021-2267-5

Volume 28 Issue 7

Jul. 2021

Turn off MathJax

Article Contents

Article Navigation > International Journal of Minerals, Metallurgy and Materials > 2021 > 28(7): 1097-1111

Xue-qiu He, Chao Zhou, Da-zhao Song, Zhen-lei Li, An-ye Cao, Shen-quan He, and Majid Khan, Mechanism and monitoring and early warning technology for rockburst in coal mines, Int. J. Miner. Metall. Mater., 28(2021), No. 7, pp. 1097-1111. https://doi.org/10.1007/s12613-021-2267-5

Cite this article as:

Xue-qiu He, Chao Zhou, Da-zhao Song, Zhen-lei Li, An-ye Cao, Shen-quan He, and Majid Khan, Mechanism and monitoring and early warning technology for rockburst in coal mines, Int. J. Miner. Metall. Mater., 28(2021), No. 7, pp. 1097-1111. https://doi.org/10.1007/s12613-021-2267-5

Citation:

PDF( 2207 KB)

Invited Review

Mechanism and monitoring and early warning technology for rockburst in coal mines

+ Author Affiliations

Corresponding authors:
Chao Zhou E-mail: lebronzhou@126.com

Da-zhao Song E-mail: songdz@ustb.edu.cn
Received: 19 July 2020; Revised: 5 February 2021; Accepted: 17 February 2021; Available online: 18 February 2021

Abstract

Abstract

On the basis of the massive amount of published literature and the long-term practice of our research group in the field of prevention and control of rockburst, the research progress and shortcomings in understanding the rockburst phenomenon have been comprehensively investigated. This study focuses on the occurrence mechanism and monitoring and early warning technology for rockburst in coal mines. Results showed that the prevention and control of rockburst had made significant progress. However, with the increasing mining depth, several unresolved concerns remain challenging. From the in-depth research and analysis, it can be inferred that rockburst disasters involve three main problems, i.e., the induction factors are complicated, the mechanism is still unclear, and the accuracy of the monitoring equipment and multisource stereo monitoring technology is insufficient. The monitoring and warning standards of rockburst need to be further clarified and improved. Combined with the Internet of Things, cloud computing, and big data, a study of the trend of rockburst needs to be conducted. Furthermore, the mechanism of multiphase and multi-field coupling induced by rockburst on a large scale needs to be explored. A multisystem and multiparameter integrated monitoring and early warning system and remote monitoring cloud platform for rockburst should be explored and developed. High-reliability sensing technology and equipment and perfect monitoring and early warning standards are considered to be the development direction of rockburst in the future. This research will help experts and technicians adopt effective measures for controlling rockburst disasters.
- coal mine;
- rockburst;
- mechanism;
- monitoring and early warning technology;
- multiparameter

FullText(HTML)

Supplements(0)

References(109)

References

[1]	Q.X. Qi, S.K. Zhao, H.T. Li, and K. Qin, Several key problems of coal bump prevention and control China’s coal mines, Saf. Coal Mines, 51(2020), No. 10, p. 135.
[2]	B. Hebblewhite and J. Galvin, A review of the geomechanics aspects of a double fatality coal burst at Austar Colliery in NSW, Australia in April 2014, Int. J. Min. Sci. Technol., 27(2017), No. 1, p. 3. doi: 10.1016/j.ijmst.2016.10.002
[3]	C. Mark, Coal bursts in the deep longwall mines of the United States, Int. J. Coal Sci. Technol., 3(2016), No. 1, p. 1. doi: 10.1007/s40789-016-0102-9
[4]	A.T. Iannacchione and S.C. Tadolini, Occurrence, predication, and control of coal burst events in the U.S., Int. J. Min. Sci. Technol., 26(2016), No. 1, p. 39. doi: 10.1016/j.ijmst.2015.11.008
[5]	P. Konicek, K. Soucek, L. Stas, and R. Singh, Long-hole destress blasting for rockburst control during deep underground coal mining, Int. J. Rock Mech. Min. Sci., 61(2013), p. 141. doi: 10.1016/j.ijrmms.2013.02.001
[6]	B.P. Simser, Rockburst management in Canadian hard rock mines, J. Rock Mech. Geotech. Eng., 11(2019), No. 5, p. 1036. doi: 10.1016/j.jrmge.2019.07.005
[7]	W.J. Gale, A review of energy associated with coal bursts, Int. J. Min. Sci. Technol., 28(2018), No. 5, p. 755. doi: 10.1016/j.ijmst.2018.08.004
[8]	C. Mark, Coal bursts that occur during development: A rock mechanics enigma, Int. J. Min. Sci. Technol., 28(2018), No. 1, p. 35. doi: 10.1016/j.ijmst.2017.11.014
[9]	L.M. Qiu, D.Z. Song, X.Q. He, E.Y. Wang, Z.L. Li, S. Yin, M.H. Wei, and Y. Liu, Multifractal of electromagnetic waveform and spectrum about coal rock samples subjected to uniaxial compression, Fractals, 28(2020), No. 4, art. No. 2050061. doi: 10.1142/S0218348X20500619
[10]	M. Alber, R. Fritschen, M. Bischoff, and T. Meier, Rock mechanical investigations of seismic events in a deep longwall coal mine, Int. J. Rock Mech. Min. Sci., 46(2009), No. 2, p. 408. doi: 10.1016/j.ijrmms.2008.07.014
[11]	K. Holub, J. Rušajová, and J. Holečko, Particle velocity generated by rockburst during exploitation of the longwall and its impact on the workings, Int. J. Rock Mech. Min. Sci., 48(2011), No. 6, p. 942. doi: 10.1016/j.ijrmms.2011.05.004
[12]	J.F. Pan, Q.X. Qi, S.H. Liu, S.W. Wang, W.T. Ma, and X.C. Kang, Characteristics, types and prevention and control technology of rock burst in deep coal mining in China, J. China Coal Soc., 45(2020), No. 1, p. 111.
[13]	J. Kretschman and C. Melchers, eds., Done for Good: Challenges of Post-Mining, J.C. Wang and Y. Li, trans., Science Press, Beijing, 2020, p. 27.
[14]	G.F. Wang, X.P. Hu, X.H. Liu, X. Yu, W.C. Liu, Y. Lü, and Z. Zheng, Adaptability analysis of four-leg hydraulic support for underhand working face with large mining height of kilometer deep mine, J. China Coal Soc., 45(2020), No. 3, p. 865.
[15]	Q.X. Qi, Y.S. Pan, L.Y. Shu, H.Y. Li, D.Y. Jiang, S.K. Zhao, Y.H. Zou, J.F. Pan, K.J. Wang, and H.T. Li, Theory and technical framework of prevention and control with different sources in multi-scales for coal and rock dynamic disasters in deep mining of coal mines, J. China Coal Soc., 43(2018), No. 7, p. 1801.
[16]	S.Q. He, D.Z. Song, X.Q. He, J.Q. Chen, T. Ren, Z.L. Li, and L.M. Qiu, Coupled mechanism of compression and prying-induced rock burst in steeply inclined coal seams and principles for its prevention, Tunnelling Underground Space Technol., 98(2020), art. No. 103327. doi: 10.1016/j.tust.2020.103327
[17]	Q.X. Qi, Y.Z. Li, S.K. Zhao, N.B. Zhang, W.Y. Zheng, H.T. Li, and H.Y. Li, Seventy years development of coal mine rockburst in China: Establishment and consideration of theory and technology system, Coal Sci. Technol., 47(2019), No. 9, p. 1.
[18]	L.M. Dou and X.Q. He, Theory and Technology of Rock Burst Prevention, China University of mining and Technology Press, Xuzhou, 2001, p. 40.
[19]	Y.D. Jiang, Y.S. Pan, F.X. Jiang, L.M. Dou, and Y. Ju, State of the art review on mechanism and prevention of coal bumps in China, J. China Coal Soc., 39(2014), No. 2, p. 205.
[20]	E.I. Shemyakin, M.V. Kurlenya, and G.I. Kulakov, Classification of rock bursts, Sov. Min. Sci., 22(1986), No. 5, p. 329. doi: 10.1007/BF02504138
[21]	E. Aker, D. Kühn, V. Vavryčuk, M. Soldal, and V. Oye, Experimental investigation of acoustic emissions and their moment tensors in rock during failure, Int. J. Rock Mech. Min. Sci., 70(2014), p. 286. doi: 10.1016/j.ijrmms.2014.05.003
[22]	S.D. Goodfellow, N. Tisato, M. Ghofranitabari, M.H.B. Nasseri, and R.P. Young, Attenuation properties of Fontainebleau sandstone during true-triaxial deformation using active and passive ultrasonics, Rock Mech. Rock Eng., 48(2015), No. 6, p. 2551. doi: 10.1007/s00603-015-0833-8
[23]	F. Amann, E.A. Button, K.F. Evans, V.S. Gischig, and M. Blümel, Experimental study of the brittle behavior of clay shale in rapid unconfined compression, Rock Mech. Rock Eng., 44(2011), No. 4, p. 415. doi: 10.1007/s00603-011-0156-3
[24]	S. Arora and B. Mishra, Investigation of the failure mode of shale rocks in biaxial and triaxial compression tests, Int. J. Rock Mech. Min. Sci., 79(2015), p. 109. doi: 10.1016/j.ijrmms.2015.08.014
[25]	V.L. Shkuratnik, Y.L. Filimonov, and S.V. Kuchurin, Regularities of acoustic emission in coal samples under triaxial compression, J. Min. Sci., 41(2005), No. 1, p. 44. doi: 10.1007/s10913-005-0062-8
[26]	A. Fakhimi, O. Hosseini, and R. Theodore, Physical and numerical study of strain burst of mine pillars, Comput. Geotech., 74(2016), p. 36. doi: 10.1016/j.compgeo.2015.12.018
[27]	J.A. Jarufe and P. Vasquez, Numerical modelling of rock-burst loading for use in rock support design at Codelco’s New Mine Level Project, Min. Technol., 123(2014), No. 3, p. 120. doi: 10.1179/1743286313Y.0000000050
[28]	A. Mottahedi and M. Ataei, Fuzzy fault tree analysis for coal burst occurrence probability in underground coal mining, Tunnelling Underground Space Technol., 83(2019), p. 165. doi: 10.1016/j.tust.2018.09.029
[29]	Y.X. Xia, Research on the Method of Dynamic-Static Evaluation of Rockburst and Comprehensive Early Warning Model [Dissertation], China Coal Research Institute, Beijing, 2020, p. 1.
[30]	M. Salvoni and P.M. Dight, Rock damage assessment in a large unstable slope from microseismic monitoring - MMG Century mine (Queensland, Australia) case study, Eng. Geol., 210(2016), p. 45. doi: 10.1016/j.enggeo.2016.06.002
[31]	Z.L. Li, X.Q. He, L.M. Dou, and G.F. Wang, Rockburst occurrences and microseismicity in a longwall panel experiencing frequent rockbursts, Geosci. J., 22(2018), No. 4, p. 623. doi: 10.1007/s12303-017-0076-7
[32]	A. Keneti and B.A. Sainsbury, Review of published rockburst events and their contributing factors, Eng. Geol., 246(2018), p. 361. doi: 10.1016/j.enggeo.2018.10.005
[33]	N. Hosseini, K. Oraee, K. Shahriar, and K. Goshtasbi, Studying the stress redistribution around the longwall mining panel using passive seismic velocity tomography and geostatistical estimation, Arab. J. Geosci., 6(2013), No. 5, p. 1407. doi: 10.1007/s12517-011-0443-z
[34]	M. Gierczak, The quantitative risk assessment of MINI, MIDI and MAXI Horizontal Directional Drilling Projects applying Fuzzy Fault Tree Analysis, Tunnelling Underground Space Technol., 43(2014), p. 67. doi: 10.1016/j.tust.2014.04.003
[35]	J.A. Sanchidrián, P. Segarra, and L.M. López, Energy components in rock blasting, Int. J. Rock Mech. Min. Sci., 44(2007), No. 1, p. 130. doi: 10.1016/j.ijrmms.2006.05.002
[36]	W. Cai, L.M. Dou, M. Zhang, W.Z. Cao, J.Q. Shi, and L.F. Feng, A fuzzy comprehensive evaluation methodology for rock burst forecasting using microseismic monitoring, Tunnelling Underground Space Technol., 80(2018), p. 232.
[37]	N.G.W. Cook, The failure of rock, Int. J. Rock Mech. Min. Sci. Geomech. Abstr., 2(1965), No. 4, p. 389. doi: 10.1016/0148-9062(65)90004-5
[38]	N.G.W. Cook, A note on rockbursts considered as a problem of stability, J. South Afr. Inst. Min. Metall., 65(1965), No. 8, p. 437.
[39]	N.G.W. Cook, E.P. Hoek, J.P.G. Pretorius, W.D. Ortlepp, and M.D.G. Salamon, Rock mechanics applied to the study of rockbursts, J. South Afr. Inst. Min. Metall., 66(1966), No. 10, p. 435.
[40]	I.M. Petukhov and A.M. Linkov, The theory of post-failure deformations and the problem of stability in rock mechanics, Int. J. Rock Mech. Min. Sci. Geomech. Abstr., 16(1979), No. 2, p. 57. doi: 10.1016/0148-9062(79)91444-X
[41]	A.M. Linkov, Rockbursts and the instability of rock masses, Int. J. Rock Mech. Min. Sci. Geomech. Abstr., 33(1996), No. 7, p. 727. doi: 10.1016/0148-9062(96)00021-6
[42]	W.R. Wawersik and C. Fairhurst, A study of brittle rock fracture in laboratory compression experiments, Int. J. Rock Mech. Min. Sci. Geomech. Abstr., 7(1970), No. 5, p. 561. doi: 10.1016/0148-9062(70)90007-0
[43]	S.P. Singh, Burst energy release index, Rock Mech. Rock Eng., 21(1988), No. 2, p. 149. doi: 10.1007/BF01043119
[44]	I.T. Aitmatov, K.C. Kozhogulov, and T.N. Pugacheva, The method of geomechanical analogies for predicting the rock-burst hazard of veined steeply-dipping deposits, J. Min. Sci., 27(1992), No. 5, p. 396. doi: 10.1007/BF00734178
[45]	S.Q. He, D.Z. Song, Z.L. Li, X.Q. He, J.Q. Chen, D.H. Li, and X.H. Tian, Precursor of spatio-temporal evolution law of MS and AE activities for rock burst warning in steeply inclined and extremely thick coal seams under caving mining conditions, Rock Mech. Rock Eng., 52(2019), No. 7, p. 2415. doi: 10.1007/s00603-018-1690-z
[46]	A.Y. Gor, V.S. Kuksenko, N.G. Tomilin, and D.I. Frolov, Concentration threshold for failure and prediction of rock bursts, Sov. Min., 25(1989), No. 3, p. 237. doi: 10.1007/BF02528481
[47]	L. Yuan, Y.D. Jiang, X.Q. He, L.M. Dou, Y.X. Zhao, X.S. Zhao, K. Wang, Y. Qing, X.M. Lu, and H.C. Li, Research progress of precise risk accurate identification and monitoring early warning on typical dynamic disasters in coal mine, J. China Coal Soc., 43(2018), No. 2, p. 306.
[48]	A. Zubelewicz and Z. Mróz, Numerical simulation of rock burst processes treated as problems of dynamic instability, Rock Mech. Rock Eng., 16(1983), No. 4, p. 253. doi: 10.1007/BF01042360
[49]	H.P. Kang, G. Xu, B.M. Wang, Y.Z. Wu, P.F. Jiang, J.F. Pan, H.W. Ren, Y.J. Zhang, and Y.H. Pang, Forty years development and prospects of underground coal mining and strata control technologies in China, J. Min. Strata Control Eng., 1(2019), No. 1, art. No. 013501.
[50]	Y.D. Jiang and Y.X. Zhao, State of the art: Investigation on mechanism, forecast and control of coal bumps in China, Chin. J. Rock Mech. Eng., 34(2015), No. 11, p. 2188.
[51]	F.X. Jiang, X.C. Qu, Z.X. Yu, and C.W. Wang, Real time monitoring and measuring early warning technology and development of mine pressure bumping, Coal Sci. Technol., 39(2011), No. 2, p. 59.
[52]	L.M. Dou, Z.L. Li, and M. Zhang, Study on monitoring and early warning technology of mine pressure bump disaster, Coal Sci. Technol., 44(2016), No. 7, p. 41.
[53]	J.F. Pan, D.B. Mao, H. Lan, S.W. Wang, and Q.X. Qing, Study status and prospect of mine pressure bumping control technology in China, Coal Sci. Technol., 41(2013), No. 6, p. 21.
[54]	C.X. Shu, The Mechanism and Prevention of Rock Burst at the Water-Rich Working Face in the Deep Zone of Mine in the Adjacent Area of Shaanxi and Inner Mongolia [Dissertation], University of Science and Technology Beijing, Beijing, 2019, p. 26.
[55]	G.H. Zhang, Z.H. Ouyang, Q.X. Qi, H.Y. Li, Z.G. Deng, and J.J. Jiang, Experimental research on the influence of gas on coal burst tendency, J. China Coal Soc., 42(2017), No. 12, p. 3159.
[56]	T.T. Du, G.Y. Li, J.Q. Chen, J.F. Pan, K. Li, and M.Y. Cao, Rock burst occurrence and prevention status in Xinjiang region, Coal Min. Technol., 23(2018), No. 2, p. 5.
[57]	I.M. Petukhov, ed., The Mechanical Calculation Method of Rockburst and Coal and Gas Outburst, K.X. Duan, trans., China Coal Industry Publishing House, Beijing, 1994, p. 4.
[58]	G. Bräuner, Mine Pressure and Rockburst, Y.S. Li, trans., China Coal Industry Publishing House, Beijing, 1985, p. 3.
[59]	A. Kidybiński, Bursting liability indices of coal, Int. J. Rock Mech. Min. Sci. Geomech. Abstr., 18(1981), No. 4, p. 295. doi: 10.1016/0148-9062(81)91194-3
[60]	Z.T. Bieniawski, Mechanism of brittle fracture of rock: Part II—experimental studies, Int. J. Rock Mech. Min. Sci. Geomech. Abstr., 4(1967), No. 4, p. 407. doi: 10.1016/0148-9062(67)90031-9
[61]	Y.S. Li, Rockburst mechanism and its preliminary application, J. China Inst. Min. Technol., 3(1985), p. 37.
[62]	M.T. Zhang, Instability theory and mathematical model for coal/rock bursts, Chin. J. Rock Mech. Eng., 6(1987), No. 3, p. 197.
[63]	Q.X. Qi and L.M. Dou, Rockburst Theory and Technology, China University of Mining and Technology Press, Xuzhou, 2008, p. 653.
[64]	Q.X. Qi, Y.W. Shi, and T.Q. Liu, Mechanism of instability caused by viscous sliding in rock burst, J. China Coal Soc., 22(1997), No. 2, p. 144.
[65]	Y.S. Pan, Disturbance response instability theory of rockburst in coal mine, J. China Coal Soc., 43(2018), No. 8, p. 2091.
[66]	F.X. Jiang, Viewpoint of spatial structures of overlying strata and its application in coal mine, J. Min. Saf. Eng., 23(2006), No. 1, p. 30.
[67]	F.X. Jiang, Y. Liu, Y.C. Zhang, J.L. Wen, and J. An, A three-zone structure loading model of overlying strata and its application on rockburst prevention, Chin. J. Rock Mech. Eng., 35(2016), No. 12, p. 2398.
[68]	S.T. Zhu, Mechanism and Prevention of Rockburst in Extra-Thick Coal Seams Mining [Dissertation], University of Science and Technology Beijing, Beijing, 2017, p. 9.
[69]	L.M. Dou, J. He, A.Y. Cao, S.Y. Gong, and W. Cai, Rock burst prevention methods based on theory of dynamic and static combined load induced in coal mine, J. China Coal Soc., 40(2015), No. 7, p. 1469.
[70]	L.M. Dou, C.P. Lu, Z.L. Mou, Y.M. Qin, and J.M. Yao, Intensity weakening theory for rockburst and its application, J. China Coal Soc., 30(2005), No. 6, p. 690.
[71]	J.F. Pan, Theory of rockburst start-up and its complete technology system, J. China Coal Soc., 44(2019), No. 1, p. 173.
[72]	L.Y. Pan and H.Z. Yang, Dilatancy theory for identification of premonitory information of rock burst, Chin. J. Rock Mech. Eng., 23(2004), Suppl. 1, p. 4528.
[73]	Y.L. Tan, W.Y. Guo, T.B. Zhao, and X.J. Meng, Coal rib burst mechanism in deep roadway and “stress relief–support reinforcement” synergetic control and prevention, J. China Coal Soc., 45(2020), No. 1, p. 66.
[74]	Y. Pan, Y. Liu, and S.F. Gu, Fold catastrophe model of mine fault rockburst, Chin. J. Rock Mech. Eng., 20(2001), No. 1, p. 43.
[75]	H. Xie and W.G. Pariseau, Fractal character and mechanism of rock bursts, Int. J. Rock Mech. Min. Sci. Geomech. Abstr., 30(1993), No. 4, p. 343. doi: 10.1016/0148-9062(93)91718-X
[76]	B.X. Jia, H. Chen, Y.S. Pan, and Y. Chen, Rock burst prediction technology of multi-parameters synthetic index, J. Disaster Prev. Mitigation Eng., 39(2019), No. 2, p. 330.
[77]	P. Hatherly, R. Leung, S. Scheding, and D. Robinson, Drill monitoring results reveal geological conditions in blasthole drilling, Int. J. Rock Mech. Min. Sci., 78(2015), p. 144. doi: 10.1016/j.ijrmms.2015.05.006
[78]	X.C. Qu, F.X. Jiang, Z.X. Yu, and H.Y. Ju, Rockburst monitoring and precaution technology based on equivalent drilling research and its applications, Chin. J. Rock Mech. Eng., 30(2011), No. 11, p. 2346.
[79]	W.Q. Xu, Studies on Monitoring Technology of Mining Space Surrounding Rock Stress and Its Application [Dissertation], China University of Mining and Technology, Xuzhou, 2012, p. 15.
[80]	A. Lavrov, The Kaiser effect in rocks: Principles and stress estimation techniques, Int. J. Rock Mech. Min. Sci., 40(2003), No. 2, p. 151. doi: 10.1016/S1365-1609(02)00138-7
[81]	M. Seto, M. Utagawa, K. Katsuyama, D.K. Nag, and V.S. Vutukuri, In situ stress determination by acoustic emission technique, Int. J. Rock Mech. Min. Sci., 34(1997), No. 3-4, p. 281.e1.
[82]	D.J. Holcomb, General theory of the Kaiser effect, Int. J. Rock Mech. Min. Sci. Geomech. Abstr., 30(1993), No. 7, p. 929. doi: 10.1016/0148-9062(93)90047-H
[83]	P. Ganne, A. Vervoort, and M. Wevers, Quantification of pre-peak brittle damage: Correlation between acoustic emission and observed micro-fracturing, Int. J. Rock Mech. Min. Sci., 44(2007), No. 5, p. 720. doi: 10.1016/j.ijrmms.2006.11.003
[84]	W.D. Liu, Study on the Key Technologies of Acoustic Emission Signal Processing in Forecasting Rockburst [Dissertation], China University of mining and technology, Xuzhou, 2009, p. 19.
[85]	V.S. Kuksenko, I.E. Inzhevatkin, B.T. Manzhikov, S.A. Stanchits, N.G. Tomilin, and D.I. Frolov, Physical and methodological principles of rock burst prediction, Sov. Min., 23(1987), No. 1, p. 6. doi: 10.1007/BF02534035
[86]	A. Hirata, Y. Kameoka, and T. Hirano, Safety management based on detection of possible rock bursts by AE monitoring during tunnel excavation, Rock Mech. Rock Eng., 40(2007), No. 6, p. 563. doi: 10.1007/s00603-006-0122-7
[87]	H.S. Hasegawa, R.J. Wetmiller, and D.J. Gendzwill, Induced seismicity in mines in Canada—An overview, Pure Appl. Geophys., 129(1989), No. 3, p. 423.
[88]	E. Glowacka and A. Kijko, Continuous evaluation of seismic hazard induced by the deposit extraction in selected coal mines in Poland, Pure Appl. Geophys., 129(1989), No. 3, p. 523.
[89]	A. Lurka, Location of high seismic activity zones and seismic hazard assessment in Zabrze Bielszowice coal mine using passive tomography, J. China Univ. Min. Technol., 18(2008), No. 2, p. 177. doi: 10.1016/S1006-1266(08)60038-3
[90]	S.Y. Gong, L.M. Dou, A.Y. Cao, H. He, T.T. Du, and H. Jiang, Study on optimal configuration of seismological observation network for coal mine, Chin. J. Geophys., 53(2010), No. 2, p. 457.
[91]	Y.X. Xia, L.J. Kang, Q.X. Qi, D.B. Mao, Y. Ren, H. Lan, and J.F. Pan, Five indexes of microseismic and their application in rock burst forecastion, J. China Coal Soc., 35(2010), No. 12, p. 2011.
[92]	F.X. Jiang, S.H. Yang, and L. Xun, Spatial fracturing progresses of surrounding rock masses in longwall face monitored by microseismic monitoring techniques, J. China Coal Soc., 28(2003), No. 4, p. 357.
[93]	N. Li, E.Y. Wang, and M.C. Ge, Microseismic monitoring technique and its applications at coal mines: Present status and future prospects, J. China Coal Soc., 42(2017), Suppl. 1, p. 83.
[94]	K. Luxbacher, E. Westman, P. Swanson, and M. Karfakis, Three-dimensional time-lapse velocity tomography of an underground longwall panel, Int. J. Rock Mech. Min. Sci., 45(2008), No. 4, p. 478. doi: 10.1016/j.ijrmms.2007.07.015
[95]	S.W. Wang, D.B. Mao, T.T. Du, F.B. Chen, and M.H. Feng, Rockburst hazard evaluation model based on seismic CT technology, J. China Coal Soc., 37(2012), Suppl. 1, p. 1.
[96]	X.Q. He, E.Y. Wang, B.S. Nie, M.J. Liu, and L. Zhang, Electromagnetic Dynamics of Coal or Rock Rheology, Science Press, Beijing, 2003, p. 177.
[97]	S.V. Kuznetsov, Propagation of the discharge wave in the face zone of a coal seam and its relation to rock bursts, Sov. Min., 6(1970), No. 4, p. 429. doi: 10.1007/BF02508891
[98]	E.Y. Wang, X.Q. He, and Z.T. Liu, The progress of coal and rock EMR characteristic & application study, Prog. Nat. Sci., 16(2006), No. 5, p. 532.
[99]	V. Frid, Rockburst hazard forecast by electromagnetic radiation excited by rock fracture, Rock Mech. Rock Eng., 30(1997), No. 4, p. 229. doi: 10.1007/BF01045719
[100]	V. Frid and K. Vozoff, Electromagnetic radiation induced by mining rock failure, Int. J. Coal Geol., 64(2005), No. 1-2, p. 57. doi: 10.1016/j.coal.2005.03.005
[101]	V. Frid, Electromagnetic radiation method for rock and gas outburst forecast, J. Appl. Geophys., 38(1997), No. 2, p. 97. doi: 10.1016/S0926-9851(97)00017-7
[102]	V.I. Frid, A.N. Shabarov, V.M. Proskuryakov, and V.A. Baranov, Formation of electromagnetic radiation in coal stratum, J. Min. Sci., 28(1992), No. 2, p. 139. doi: 10.1007/BF00710732
[103]	Y.S. Pan, Y.F. Zhao, and G.Z. Li, Charge-induced technique of rockburst prediction and its application, Chin. J. Rock Mech. Eng., 31(2012), Suppl. 2, p. 3988.
[104]	Y.X. Xia, H. Lan, and X.Z. Wei, Study of comprehensive evaluation technology for rock burst hazard based on microseismic and underground sound monitoring, J. China Coal Soc., 36(2011), Suppl. 2, p. 358.
[105]	Z.Y. Zhang, Y.J. Wang, C.L. Zhao, Z.G. Deng, and C.P. Wang, Application of micro seismic and ground acoustic emission comprehensive monitoring and measuring to prevention and control of mine strata pressure bumping, Coal Sci. Technol., 39(2011), No. 1, p. 44.
[106]	S.H. Liu, J.F. Pan, Y.X. Xia, Z.H. Qin, T.T. Du, and F.B. Chen, Research on the risk hierarchical assessment of rock burst of heading face based on acoustic emission and electromagnetic wave CT system, J. China Coal Soc., 43(2018), No. 8, p. 2107.
[107]	L.M. Dou, Y.D. Jiang, A.Y. Cao, H.S. Liu, S.Y. Gong, W. Cai, and G.A. Zhu, Monitoring and pre-warning of rockburst hazard with technology of stress field and wave field in underground coalmines, Chin. J. Rock Mech. Eng., 36(2017), No. 4, p. 803.
[108]	J.H. Liu, M.H. Zhai, X.S. Guo, F.X. Jiang, G.J. Sun, and Z.W. Zhang, Theory of coal burst monitoring using technology of vibration field combined with stress field and its application, J. China Coal Soc., 39(2014), No. 2, p. 353.
[109]	X.Q. He, A.H. Wang, L.M. Dou, D.Z. Song, Z.Y. Zu, and Z.L. Li, Technology of microseismic dynamic monitoring on coal and gas outburst-prone zone, J. China Coal Soc., 43(2018), No. 11, p. 3122.