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Energy dissimilation characteristics and shock mechanism of coal-rock mass induced in steeply-inclined mining: comparison based on physical simulation and numerical calculation

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Abstract

In recent years, as the Urumqi mining area deepens, rockbursts induced by the instability of the coal-rock mass are becoming more serious in steeply-inclined coal seam mining. Field survey analysis, physical similarity simulation, numerical modeling, and engineering verification methods were used to investigate the energy dissemination characteristics of steeply-inclined coal-rock mass and “squeeze-prying” induced-shock mechanism, based on “strong–weak” structure during deep mining. The results showed that the deep mining limit depth of the south mining area of Wudong Coal Mine was 330 m (+ 500 level), the energy stored in a steeply-inclined mass was mainly released in low energy microseismic events during deep mining and the mass was in the “low frequency-energy storage period” for a long time. The mechanism of “strong–weak” structure and “squeeze-prying” system of the mass, induced by deep mining of steeply-inclined coal seams, was revealed. The “strong–weak” structure in such a mass was found to lead to frequent rockburst occurrence. Aiming at the problems of high energy and stress concentration in the “strong–weak” structural area, this study proposed an energy control scheme of “blasting-water injection” for sandwiched rock pillars and “deep-shallow” hole blasting for the roof-floor of the B3+6 coal seam. After such adjustments, the number of large energy events > 105 J completely disappeared, energy events > 104 J reduced by 66.7%, average daily microseismic energy dropped by 75.5%, and distribution of microseismic events more dispersed. This indicated that these control measures could effectively reduce high energy microseismic events and the stress concentration of stopes.

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The data that support the findings of this study are available from the corresponding author upon reasonable request.

References

  1. Cai W, Dou LM, Si GY, Cao AY, Gong SY, Wang GF, Yuan SS (2019) A new seismic-based strain energy methodology for coal burst forecasting in underground coal mines. Int J Min Sci Technol 123:104086

    Google Scholar 

  2. Cheng GW, Ma TH, Tang CA, Liu HY, Wang SJ (2017) A zoning model for coal mining - induced strata movement based on microseismic monitoring. Int J Min Sci Technol 94:123–138

    Google Scholar 

  3. Cui F, Yang YB, Lai XP, Cao JT (2019) Similar material simulation experimental study on rockbursts induced by key stratum breaking based on microseismic monitoring. Chin J Rock Mech Eng 38(4):803–814 (In Chinese)

    Google Scholar 

  4. Deng YH, Wang SQ (2014) Feasibility analysis of gob-side entry retaining on a working face in a steep coal seam. Int J Min Sci Technol 24(4):499–503

    Article  Google Scholar 

  5. Dou LM, He J, Cao AY, Gong SY, Cai W (2015) Rock burst prevention methods based on theory of dynamic and static combined load induced in coal mine. J China Coal Soc 40(7):1469–1476 (In Chinese)

    Google Scholar 

  6. Du TT, Li K, Lan H, Liu XD (2018) Rockburst process analysis in steeply-inclined extremely-thick coal seam. J Min Saf Eng 35(1):140–145 (In Chinese)

    Google Scholar 

  7. Feng GL, Feng XT, **ao YX, Yao ZB, Hu L, Niu WJ, Li T (2019) Characteristic microseismicity during the development process of intermittent rockburst in a deep railway tunnel. Int J Rock Mech Min Sci 124:1–13

    Article  Google Scholar 

  8. Gao MS, Zhao YC, Gao XJ, Wang YX (2019) Study on the mechanism of rock bursts caused by rock plates between sub-vertical extra-thick coal seams and its prevention and treatment. J Min Saf Eng 36(2):298–305 (In Chinese)

    Google Scholar 

  9. He SQ, Song DZ, He XQ, Chen JQ, Ren T, Li ZL, Qiu LM (2020) Coupled mechanism of compression and prying-induced rock burst in steeply inclined coal seams and principles for its prevention. Tunn Undergr Space Technol 98:103327

    Article  Google Scholar 

  10. He SQ, Song DZ, Li ZL, He XQ, Chen JQ, Li DH, Tian XH (2019) 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 52:1–21

    Article  Google Scholar 

  11. He MC, **a HM, Jia XN, Gong WL, Zhao F, Liang KY (2012) Studies on classification, criteria and control of rockbursts. J Rock Mech Geotech Eng 04(02):97–114

    Article  Google Scholar 

  12. Jiang YD, Pan YS, Jiang FX, Dou LM, Ju Y (2014) State of the art review on mechanism and prevention of coal bumps in China. J China Coal Soc 39(2):205–213 (In Chinese)

    Google Scholar 

  13. Kang HP, Wu L, Gao FQ, Lv HW, Li JZ (2019) Field study on the load transfer mechanics associated with longwall coal retreat mining. Int J Rock Mech Min Sci 124:104141

    Article  Google Scholar 

  14. Lai XP, Cui F, Cao JT, Lv ZH, Kang YL (2017) Analysis on characteristics of overlying rock caving and fissure conductive water in top-coal caving working face at three soft coal seam. J China Coal Soc 42(1):148–154 (In Chinese)

    Google Scholar 

  15. Lai XP, Dai JJ, Li C (2020) Analysis on hazard characteristics of overburden structure in steeply inclined coal seam. J China Coal Soc 45(1):122–130 (In Chinese)

    Google Scholar 

  16. Lai XP, Sun H, Cai M (2017) Mechanism of dynamic hazards due to coal and rock mass instability in extremely steep coal seams with the deepening mining”. J **’an Univ Sci Technol 37(3):305–311 (In Chinese)

    Google Scholar 

  17. Lai XP, Sun H, Shan PF, Cai M, Cao JT, Cui F (2015) Structure instability forecasting and analysis of giant rock pillars in steeply dip** thick coal seams. Int J Miner Metall Mater 22(12):1–12

    Article  Google Scholar 

  18. Lai XP, Sun H, Shan PF, Wang CL, Cui N (2015) Acoustic emission and temperature variation in failure process of hard rock pillars sandwiched between thick coal seams of extremely steep. Chin J Rock Mech Eng 34(11):2285–2292 (In Chinese)

    Google Scholar 

  19. Li AN, Dou LM, Wang ZY, ** coal in mining near vertical coal seam with horizontal slice method. J China Coal Soc 43(12):3302–3308 (In Chinese)

    Google Scholar 

  20. Li ZL, He XQ, Dou LM, Song DZ, Wang GF (2018) Numerical investigation of load shedding and rockburst reduction effects of top-coal caving mining in thick coal seams. Int J Rock Mech Min Sci 110:266–278

    Article  Google Scholar 

  21. Liang WG, Zhao YS, Xu SG, Yu YM (2012) Study on the theory of in-situ solution mining. J Taiyuan Univ Technol 43(3):382–387 (In Chinese)

    Google Scholar 

  22. Ma TH, Tang CA, Tang SB, Kuang L, Yu Q, Kong DQ, Zhu X (2018) Rockburst mechanism and prediction based on microseismic monitoring. Int J Rock Mech Min Sci 110:177–188

    Article  Google Scholar 

  23. Pan YS, Li ZH, Zhang MT (2003) Distribution, type, mechanism and prevention of rockburst in China. Chin J Rock Mech Eng 22(11):1844–1851 (In Chinese)

    Google Scholar 

  24. Qi QX, Li YZ, Zhao SK, Zhang NB, Zheng WY, Li HT, Li HY (2019) Seventy years development of coal mine rockburst in China: Establishment and consideration of theory and technology system. Coal Sci Technol 47(9):1–40 (In Chinese)

    Google Scholar 

  25. Wu ZH, Pan PZ, Zhao SK, Liu XD, Miao ST, Li YZ (2020) Study on the mechanism of rock bursts caused by Roof-Rock pillar in mining steeply-inclined and its prevention and treatment. J China Coal Soc. https://doi.org/10.13225/j.cnki.jccs.2020.0916 (In Chinese)

    Article  Google Scholar 

  26. **e HP, Li LY, Peng RD, Ju Y (2009) Energy analysis and criteria for structural failure of rocks. J Rock Mech Geotech Eng 01(01):11–20

    Article  Google Scholar 

  27. Xue RX, Liang ZZ, Xu NW, Dong LL (2020) Rockburst prediction and stability analysis of the access tunnel in the main powerhouse of a hydropower station based on microseismic monitoring. Int J Rock Mech Min Sci 126:1–13

    Article  Google Scholar 

  28. Zhang CG, Canbulat I, Tahmasebinia F, Hebblewhite B (2017) Assessment of energy release mechanisms contributing to coal burst. Int J Min Sci Technol 27(01):43–47

    Article  Google Scholar 

  29. Zhao YS (2003) Minimum energy principle of the rock body impacting destroy. Chin J Rock Mech Eng 22(11):1781–1783 (In Chinese)

    Google Scholar 

  30. Zhao YX, Jiang YD, Wang T, Gao F, **e ST (2012) Features of microseismic events and precursors of rock burst in underground coal mining with hard roof. J China Coal Soc 37(12):1960–1966 (In Chinese)

    Google Scholar 

Download references

Acknowledgements

The study has been supported by the basic research program of Natural Science in Shaanxi Province (No. S2019-JC-LH-QY-SM-0102), the National Natural Science Foundation of China (No. 51904227), the Key Research and Development Program of Shaanxi Province (No. 2018ZDXM-SF-018). Support from these agencies is gratefully acknowledged.

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Authors and Affiliations

  1. School of Energy Resources, ** Lai, Pengfei Shan, Yanbin Yang, Shuai Zhang, Baoxu Yan, Yun Zhang & Nan Zhang

  2. State Key Laboratory of Coal Green and Safety Development in West China, ** Lai, Pengfei Shan, Shuai Zhang, Baoxu Yan, Yun Zhang & Nan Zhang

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  1. Huicong Xu
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  2. ** Lai
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  3. Pengfei Shan
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  4. Yanbin Yang
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  7. Yun Zhang
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Correspondence to Huicong Xu or Pengfei Shan.

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No conflict of interest exits in the submission of this manuscript, and it is approved by all authors for publication. I would like to declare on behalf of my co-authors that the work described is original research that has not been published previously.

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Xu, H., Lai, X., Shan, P. et al. Energy dissimilation characteristics and shock mechanism of coal-rock mass induced in steeply-inclined mining: comparison based on physical simulation and numerical calculation. Acta Geotech. 18, 843–864 (2023). https://doi.org/10.1007/s11440-022-01617-2

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