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Mechanism of the dynamic pressure caused by the instability of upper chamber coal pillars in Shendong coalfield, China

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Abstract

In Shendong coalfield, severe support failure accidents caused by the dynamic pressure occurred frequently when longwall faces extracting the lower coal seam progress below the chamber coal pillars. These incidents largely threaten the personnel safety and regular operations. The rationale of the dynamic pressure has been investigated based on the movement law of the overlying strata. Experimental and numerical simulations of a longwall face in Shigetai coal mine agree well with the qualitative explanations. It is shown that the failure of the chamber coal pillars causes the sudden break and even rotation of the key strata, thereby leading to strong dynamic load that crushes the supports in the longwall face. Several guidelines have been proposed to prevent the occurrence of the dynamic pressure, the capability of which has been demonstrated by in situ practice in two longwall faces in Shendong coalfield.

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References

  • Cheng, W., Wang, W., Huang, S., and Ma, P., 2013, Acoustic emission monitoring of rockbursts during TBM-excavated headrace tunneling at Jinping II hydropower station. Journal of Rock Mechanics and Geotechnical Engineering, 5, 486–494.

    Article  Google Scholar 

  • Fujii, Y., Ishijima, Y., and Deguchi, G., 1997, Prediction of coal face rockbursts and microseismicity in deep longwall coal mining. International Journal of Rock Mechanics and Mining Sciences, 34, 85–96.

    Article  Google Scholar 

  • Hou, Z., 2000, Analysis of combinatorial key strata stability in shallow coal seam with thick loose bed. Journal of China Coal Society, 25, 127–131. (in Chinese with English abstract)

    Google Scholar 

  • Huang, Q., 2002, Ground pressure behavior and definition of shallow seams. Chinese Journal of Rock Mechanics and Engineering, 21, 1174–1177. (in Chinese with English abstract)

    Google Scholar 

  • Itasca Consulting Group, Inc., 2011, UDEC (Universal Distinct Element Code), Version 5.0. Minneapolis, USA.

    Google Scholar 

  • Jiang, Q., Feng, X., Xiang, T., and Su, G., 2010, Rockburst characteristics and numerical simulation based on a new energy index: a case study of a tunnel at 2500 m depth. Bulletin of Engineering Geology and the Environment, 69, 381–388.

    Article  Google Scholar 

  • Ju, J., Xu, J., and Zhu, W., 2013, Mechanism of support crushing while mining out of upper goaf-side coal pillar in close distance seams of Shendong mining area. Chinese Journal of Rock Mechanics and Engineering, 32, 1321–1330. (in Chinese with English abstract)

    Google Scholar 

  • Ju, J., Xu, J., and Zhu, W., 2015, Longwall chock sudden closure incident below coal pillar of adjacent upper mined coal seam under shallow cover in the Shendong coal field. International Journal of Rock Mechanics and Mining Sciences, 77, 192–201.

    Article  Google Scholar 

  • Li, T., Mu, Z., Liu, G., Du, J., and Lu, H., 2016, Stress spatial evolution law and rockburst danger induced by coal mining in fault zone. International Journal of Mining Science and Technology, 26, 409–415.

    Article  Google Scholar 

  • Liu, Y. and Wang, X., 2015, Accident analysis and prevention measure of dynamic load mine pressure of the 31201 fully mechanized working face of Shigetai coal mine. MATEC Web of Conferences, 25, 1–8.

    Article  Google Scholar 

  • Lu, C., Dou, L., Zhang, N., Xue, J., Wang, X., Liu, H., and Zhang, J., 2013, Microseismic frequency-spectrum evolutionary rule of rockburst triggered by roof fall. International Journal of Rock Mechanics and Mining Sciences, 64, 6–16.

    Article  Google Scholar 

  • Qian, M., Miao, X., and Xu, J., 1996, Theoretical study of key stratum in ground control. Journal of China Coal Society, 21, 225–230. (in Chinese with English abstract)

    Google Scholar 

  • Qian, M., Shi, P., and Xu, J., 2010, Ground pressure and strata control. China University of Mining and Technology Press, Xuzhou, 92 p. (in Chinese)

    Google Scholar 

  • Qian, M., Zhang, D., Li, L., Kang, L., and Xu, J., 1994, “S-R” stability for the voussoir beam and its application. Ground Pressure and Strata Control, 11, 6–10. (in Chinese with English abstract)

    Google Scholar 

  • Shi, P. and Hou, Z., 1996, Law of roof breaking movement of shallow seams in Shenfu CMA. Journal of Xi’an Mining Institute, 16, 204–207. (in Chinese with English abstract)

    Google Scholar 

  • Wang, F., Zhang, C., Zhang, X., and Song, Q., 2015, Overlying strata movement rules and safety mining technology for the shallow depth seam proximity beneath a room mining goaf. International Journal of Mining Science and Technology, 25, 139–143.

    Article  Google Scholar 

  • Wang, X., Xu, J., Zhu, W., and Ju, J., 2012a, Influence of high mining velocity on periodic weighting during fully-mechanized mining in a shallow seam. Journal of China University of Mining and Technology, 41, 349–354. (in Chinese with English abstract)

    Google Scholar 

  • Wang, X., Xu, J., Zhu, W., and Ju, J., 2012b, Theory and applicable of yield mining at ending stage of fully-mechanized face in shallow seam at Shendong mine area. Journal of Mining and Safety Engineering, 29, 151–156. (in Chinese with English abstract)

    Google Scholar 

  • Wei, L., Qi, Q., Li, H., Zhang, B., Wang, Y., and Kong, L., 2015, A case study of damage energy analysis and an early warning by microseismic monitoring for large area roof caving in shallow depth seams. Shock and Vibration, 2015, 9 p. http://dx.doi.org/10.1155/2015/709459

    Google Scholar 

  • Xie, G., Chan, J., and Hua, X., 2007, Influence of mining velocity on mechanical characteristics of surrounding rock in fully mechanized topcoal caving face. Chinese Journal of Geotechnical Engineering, 29, 963–967. (in Chinese with English abstract)

    Google Scholar 

  • Xie, X., 2014, Study on the characteristics of strata behavior in shallow seam longwall mining under the room-and-pillar mining goaf. Journal of China Coal Society, 37, 898–902. (in Chinese with English abstract)

    Google Scholar 

  • Xuan, D., Xu, J., and Wang, B., 2015, Borehole investigation of the effectiveness of grout injection technology on coal mine subsidence control. Rock Mechanics and Rock Engineering, 48, 2435–2445.

    Article  Google Scholar 

  • Xuan, D., Xu, J., and Zhu, W., 2014, Dynamic disaster control under a massive igneous sill by grouting from surface boreholes. International Journal of Rock Mechanics and Mining Sciences, 71, 176–187.

    Article  Google Scholar 

  • Xu, J., Zhu, W., and Ju, J., 2014, Supports crushing types in the longwall mining of shallow seams. Journal of China Coal Society, 39, 1625–1634. (in Chinese with English abstract)

    Google Scholar 

  • Xu, J., Zhu, W., Ju, J., and Wang, X., 2015, Study on prevention and control technology of larger area powered support jammed and roof falling accident occurred in coal mining face. Coal Science and Technology, 43, 1–8, 47. (in Chinese with English abstract)

    Google Scholar 

  • Zhou, H., Meng, F., Zhang, C., Hu, D., Yang, F., and Lu, J., 2015, Analysis of rockburst mechanisms induced by structural planes in deep tunnels. Bulletin of Engineering Geology and the Environment, 74, 1435–1451.

    Article  Google Scholar 

  • Zhu, S., Feng, Y., and Jiang, F., 2016, Determination of abutment pressure in coal mines with extremely thick alluvium stratum: a typical kind of rockburst mines in China. Rock Mechanics and Rock Engineering, 49, 1943–1952.

    Article  Google Scholar 

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Author notes

  1. Yingchun Li

    Present address: Present address State Key Laboratory of Coastal and Offshore Engineering, School of Civil Engineering, Dalian University of Technology, Dalian, 116024, China

Authors and Affiliations

  1. Key Laboratory of Deep Coal Resource Mining, Ministry of Education of China, School of Mines, China University of Mining and Technology, Xuzhou, 221116, China

    Weibing Zhu & Jingmin Xu

  2. School of Mining Engineering, University of New South Wales, Sydney, 2052, Australia

    Yingchun Li

Authors
  1. Weibing Zhu
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  2. Jingmin Xu
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  3. Yingchun Li
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Correspondence to Yingchun Li.

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Zhu, W., Xu, J. & Li, Y. Mechanism of the dynamic pressure caused by the instability of upper chamber coal pillars in Shendong coalfield, China. Geosci J 21, 729–741 (2017). https://doi.org/10.1007/s12303-017-0025-5

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  • DOI: https://doi.org/10.1007/s12303-017-0025-5

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