Geosciences Journal

, Volume 22, Issue 3, pp 487–499 | Cite as

Protection scope and gas extraction of the low-protective layer in a thin coal seam: lessons from the DaHe coalfield, China

  • Zuoyong Cao
  • Xueqiu He
  • Enyuan Wang
  • Biao Kong


Aiming at promoting thin coal seam pressure relief gas extraction, as well as delimiting the protection range of the low-protective layer in thin coal seam, in this paper, we simulated the changing process of the protective layer stress field and deformation field during the low-protective layer mining and obtained the characteristics of the displacement as well as the stress varied characteristics of the overlying strata in the low-protective layer mining. According to the protection layer mining stress relief and the deformation protection criterion, the tendency and trend of the protection layer protection scope were determined, and the theoretical calculation results were basically consistent with the direction protection angle of the protected coal seam. Taking the Dahe (DH) coalmine as an example, the floor rock roadway as the gas drainage roadway to extraction gas as well as the scheme of gas extraction and pressure relief in the upper and lower layers of the protective layer were implemented. The effect of gas control scheme showed that the working gas concentration reached the mining requirement. We finally established the low-protective layer in thin coal mining integrated technical scheme of protection scope and pressure relief gas extraction.

Key words

thin coal seam low-protective layer protection scope gas drainage integrated technical scheme 


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. Dong, G.W., 2013, The preventing coal and gas outburst technology of middle distance and low permeability and upper protective layer. Advanced Materials Research, 690, 3059–3067.CrossRefGoogle Scholar
  2. Fu, J. and Cheng, Y., 2007, Present situation of coal and gas outburst in Chinese coal mines and its prevention. Journal of Mining & Safety Engineering, 1, 253–259.Google Scholar
  3. Hu, Q., Zhou, S., and Zhou, X., 2008, Mechanical mechanism of coal and gas outburst. Journal of China Coal Society, 33, 1368–1372.Google Scholar
  4. Huang, B., Zhao, X., and Zhang, Q., 2016, Framework of the theory and technology for simultaneous mining of coal and its associated resources. Journal of China University of Mining & Technology, 45, 653–662.Google Scholar
  5. Jin, K., Cheng, Y., Wang, W., Liu, H., Liu, Z., and Zhang, H., 2016, Evaluation of the remote lower protective seam mining for coal mine gas control: a typical case study from the Zhuxianzhuang Coal Mine, Huaibei Coalfield, China. Journal of Natural Gas Science & Engineering, 33, 44–55.CrossRefGoogle Scholar
  6. Kong, B., Wang, E., Li, Z., Wang, X., Liu, X., Li, N., and Yang, Y., 2016, Electromagnetic radiation characteristics and mechanical properties of deformed and fractured sandstone after high temperature treatment. Engineering Geology, 209, 82–92.CrossRefGoogle Scholar
  7. Lama, R.D. and Bodziony, J., 1998, Management of outburst in underground coal mines. International Journal of Coal Geology, 35, 83–115.CrossRefGoogle Scholar
  8. Li, Q., Lin, B., and Zhai, C., 2015, A new technique for preventing and controlling coal and gas outburst hazard with pulse hydraulic fracturing: a case study in Yuwu coal mine, China. Natural Hazards, 75, 2931–2946.CrossRefGoogle Scholar
  9. Li, Z., 1997, Mechanism of coal and gas outburst and its occurrence condition. Coal Science and Technology, 11, 44–47.Google Scholar
  10. Li, P., 1989, Hypothesis of coal and gas outburst mechanism: hypothesis of two phases. Coal Mine Safety, 11, 29–35.Google Scholar
  11. Li, X. and Lin, B., 2010, Research status and analysis of coal and gas outburst mechanism. Coal Geology & Exploration, 38, 7–13.Google Scholar
  12. Li, H., Li, S., and Tan, Y., 2015, Research status and trend of protective layer mining of coal seam group. Mining Engineering Research, 30, 45–49.Google Scholar
  13. Liu, H., Liu, H., and Cheng, Y., 2014, The elimination of coal and gas outburst disasters by ultrathin protective seam drilling combined with stress-relief gas drainage in Xinggong coalfield. Journal of Natural Gas Science & Engineering, 21, 837–844.CrossRefGoogle Scholar
  14. Liu, H., Cheng, Y., Wang, H., and Shang, Z., 2009, Change rule of initial speed of gas emission from borehole in outburst coal seam before and after pressure relief. Journal of Mining and Safety Engineering, 26, 225–228.Google Scholar
  15. Liu, T., Lin, B., Zou, Q., and Zhu, C., 2016, Microscopic mechanism for enhanced coal bed methane recovery and outburst elimination by hydraulic slotting: a case study in Yangliu mine, China. Green house Gases Science & Technology, 6, 597–614.CrossRefGoogle Scholar
  16. Mareshev, H., 2008, Prediction methods and prevention measures of coal and gas outburst. Earthquake Press, Beijing, 358 p.Google Scholar
  17. Mohamed, K.M., Murphy, M., Lawson, H.E., and Klemetti, T., 2016, Analysis of the current rib support practices and techniques in U.S. coal mines. International Journal of Mining Science & Technology, 26, 77–87.CrossRefGoogle Scholar
  18. Tu, Q., Cheng, Y., Guo, P., Jiang, J., Wang, L., and Zhang, R., 2016, Experimental study of coal and gas outbursts related to gasenriched areas. Rock Mechanics & Rock Engineering, 49, 3769–3781.CrossRefGoogle Scholar
  19. Tang, J., Pan, Y., and Yang, S., 2013, Experimental study of coal and gas outburst under tridimensional stresses. Chinese Journal of Rock Mechanics & Engineering, 32, 960–965.Google Scholar
  20. Tu. M., Huang, N.B., and Liu, B.A., 2007, Research on pressure-relief effect of overlying coal rock body using far distance lower protective seam exploitation method. Journal of Mining & Safety Engineering, 24,418–421.Google Scholar
  21. Verma, S. and Chaudhari, S., 2016, Highlights from the literature on risk assessment techniques adopted in the mining industry: a review of past contributions, recent developments and future scope. International Journal of Mining Science & Technology, 26, 691–702.CrossRefGoogle Scholar
  22. Wang, E., Kong, B., Liang, J., Liu, X., and Liu, Z., 2016, Experimental study on EMR effect of coal heating. Journal of China University of Mining & Technology, 45, 205–210.Google Scholar
  23. Wang, H., Huang, G., Yuan, Z., Shu, C., and Zhong, H., 2014, Model of gas-solid coupling and protection range for gas flow in steeply inclined upper protective layer mining. Rock and Soil Mechanics, 5, 1377–1382.Google Scholar
  24. Wen, Z.J., Tan, Y.L., Han, Z.Z., and Meng, F.B., 2016a, Construction of time-space structure model of deep stope and stability analysis. Polish Journal of Environmental Studies, 25, 2633–2640.CrossRefGoogle Scholar
  25. Wen, Z., Wang, X., Tan, Y., Zhang, H., Huang, W., and Li, Q., 2016, A study of rock burst hazard evaluation method in coal mine. Shock & Vibration, 16, 1–9.Google Scholar
  26. Wen, Z.J., Wang, X., Li, Q.H., and Jiang, Y.J., 2016c, Simulation analysis on the strength and acoustic emission characteristics of jointed rock mass. Tehnicki vjesnik–Technical Gazette, 23, 51277–51284.Google Scholar
  27. Xiang, W., Cheng, W.Y., and Yi, M., 2011, Research on establishing the indexes system of controlling the coal and gas outburst accident. Procedia Engineering, 26, 2018–2026.CrossRefGoogle Scholar
  28. Xie, J.L. and Xu, J.L., 2017, Effect of key stratum on the mining abutment pressure of a coal seam. Geosciences Journal, 21, 267–276.CrossRefGoogle Scholar
  29. Xue, Y., Gao, F., Gao, Y., Cheng, H., Liu, Y., Hou, P., and Teng, T., 2016, Quantitative evaluation of stress-relief and permeability-increasing effects of overlying coal seams for coal mine methane drainage in Wulan coal mine. Journal of Natural Gas Science & Engineering, 32, 122–137.CrossRefGoogle Scholar
  30. Xue, Y., Gao, F., and Liu, X., 2015, Effect of damage evolution of coal on permeability variation and analysis of gas outburst hazard with coal mining. Natural Hazards, 79, 1–15.CrossRefGoogle Scholar
  31. Yu, B.F., 1985, Mechanism of Coal and gas outburst. Coal Industry Press, Beijing, 282 p.Google Scholar
  32. Yuan, L. and Xue, S., 2014, Coal seam gas content method to determine the protective layer mining outburst range of technology and application. Journal of China Coal Society, 39, 1786–1791.Google Scholar
  33. Yang, W., Lin, B., Gao, Y., Lv, Y., Wang, Y., Mao, X., Wang, N., Wang, D., and Wang, Y., 2015, Optimal coal discharge of hydraulic cutting inside coal seams for stimulating gas production: a case study in Pingmei coalfield. Journal of Natural Gas Science & Engineering, 28, 379–388.CrossRefGoogle Scholar
  34. Yang, Y., Chen, C., and Li, C., 2010, Coal and gas outburst prediction and prevention measures. Journal of Liaoning Technical University, 29, 5–7.Google Scholar
  35. You, X., Liu, G., and Zhang, H., 2011, Coal and gas outburst protective layer mining technology research status quo. Shanxi Cooking Coal Science & Technology, 35, 16–18.Google Scholar
  36. Yu, J.H., Choi, J.H., Shinn, Y.J., and Lee, D.S., 2016, Hydraulic properties measurement of tight sandstone for CO2 geological storage. Geosciences Journal, 20, 551–559.CrossRefGoogle Scholar
  37. Yuan, L., Xue, J., and Zhang, N., 2013, The status quo and prospect of coal bed methane extraction and key technology of coal and gas extraction. Coal Science and Technology, 41, 6–11.Google Scholar
  38. Yuan, L., 2016, China’s deep coal and gas a total of mining strategic thinking. Journal of China Coal Society, 1, 1–6.Google Scholar
  39. Yu, Q.X., 2012, Coal mine gas control. China University of Mining and technology press, Xuzhou, 371 p.Google Scholar
  40. Zhai, C., Xiang, X., Xu, J., and Wu, S., 2016, The characteristics and main influencing factors affecting coal and gas outbursts in Chinese Pingdingshan mining region. Natural Hazards, 82, 507–530.CrossRefGoogle Scholar
  41. Zhang, Z., Wang, E., and Li, N., 2017, Temporal and spatial characteristics of coal-mine microseism based on single-link cluster. Geosciences Journal, 21, 223–233.CrossRefGoogle Scholar
  42. Zhou, S. and He, X., 1990, The rheological hypothesis of coal and gas outburst Mechanism. Journal of China University of Mining & Technology, 2, 1–7.Google Scholar

Copyright information

© The Association of Korean Geoscience Societies and Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  • Zuoyong Cao
    • 1
    • 2
    • 3
  • Xueqiu He
    • 2
    • 4
  • Enyuan Wang
    • 1
    • 2
  • Biao Kong
    • 1
    • 2
  1. 1.Key Laboratory of Gas and Fire Control for Coal Mines (China University of Mining and Technology)Ministry of EducationXuzhouChina
  2. 2.School of Safety EngineeringChina University of Mining & TechnologyXuzhouChina
  3. 3.Guizhou Administrator of Coal Mine SafetyGuiyang, GuizhouChina
  4. 4.School of Civil and Resource EngineeringUniversity of Science and Technology BeijingBeijingChina

Personalised recommendations