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A method for selection rationality evaluation of the first-mining seam in multi-seam mining

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Abstract

The reasonable selection of the first mining seam in coal seam group is of critical importance for the effective prevention and control of gas disasters during coal mining. At present, the selection of the first seam in a coal seam group is generally based on site conditions and professional experience, which results in a degree of blindness. Therefore, a rationality evaluation system for the selection of the first mining seam is needed to guide the operation of the site, which can guarantee the safety of coal mining. To address this issue, a method for evaluating the rationality of selecting the first mining seam was proposed in this paper. The method provides comprehensive, scientific and reliable theoretical guidance for the selection of the first mining seam when mining coal seam groups by combining the expert evaluation method with the entropy method. At the same time, the reliability of the method was verified through the case study at the Shihao Coal Mine in Chongqing, China. In summary, the method eliminates the blindness in selecting the first mining seam when mining coal seam group and provides theoretical guidance for coal seam group mining operations.

Article Highlights

  • A method for selection rationality evaluation of the first-mining seam in multi-seam mining was proposed.

  • An evaluation index system of the first mining seam in outburst-prone mines was established.

  • The effectiveness of the evaluation method was verified.

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Acknowledgements

This work is financially supported by National Natural Science Foundation of China (52074041), Science & Technology Foundation of Guizhou Province ([2020]4Y050), Graduate Research and Innovation Foundation of Chongqing, China (CYS21021), Natural Science Foundation of Chongqing, China (cstc2020jcyj-msxmX0836), and the Fundamental Research Funds for the Central Universities (2020CDJ-LHZZ-002), which are gratefully acknowledged.

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Authors and Affiliations

  1. State Key Laboratory of Coal Mine Disaster Dynamics and Control, College of Resources and Environment Science, Chongqing University, Chongqing, 400044, China

    Quanle Zou & Tiancheng Zhang

  2. School of Safety Engineering, North China Institute of Science and Technology, Beijing, 101601, China

    Zhiheng Cheng

  3. School of Mines, Guizhou University, Guiyang, 550025, China

    Zebiao Jiang & Shixiang Tian

Authors
  1. Quanle Zou
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  2. Tiancheng Zhang
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  3. Zhiheng Cheng
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  4. Zebiao Jiang
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  5. Shixiang Tian
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Correspondence to Quanle Zou or Tiancheng Zhang.

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The authors declared that they have no conflicts of interest to this work. We declare that we do not have any commercial or associative interest that represents a conflict of interest in connection with the work submitted.

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Zou, Q., Zhang, T., Cheng, Z. et al. A method for selection rationality evaluation of the first-mining seam in multi-seam mining. Geomech. Geophys. Geo-energ. Geo-resour. 8, 17 (2022). https://doi.org/10.1007/s40948-021-00314-w

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