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Construction and Application of an Intelligent Roof Stability Evaluation System for the Roof-Cutting Non-Pillar Mining Method

Author

Listed:
  • Qizhi Chen

    (School of Civil Engineering and Architecture, Zhejiang University of Science & Technology, Hangzhou 310023, China)

  • Baoping Zou

    (School of Civil Engineering and Architecture, Zhejiang University of Science & Technology, Hangzhou 310023, China)

  • Zhigang Tao

    (State Key Laboratory for Geomechanics and Deep Underground Engineering, China University of Mining and Technology, Beijing 100083, China)

  • Manchao He

    (State Key Laboratory for Geomechanics and Deep Underground Engineering, China University of Mining and Technology, Beijing 100083, China)

  • Bo Hu

    (School of Civil Engineering and Architecture, Zhejiang University of Science & Technology, Hangzhou 310023, China)

Abstract

In order to sustainably use coal resources and reduce coal mine accidents, the stability evaluation of roadway roofs is particularly important. The existing methods of roof stability evaluation and control application are greatly disjointed, the relationship between roof stability evaluation and early warning control is ignored, and an intelligent evaluation and calculation control system is lacking. Based on the successful application of the roof-cutting non-pillar mining method in various engineering geology and mining conditions, the roof stability evaluation system, mobile intelligent computing system, and engineering application research are carried out. An evaluation index system for roof stability in the roof-cutting non-pillar mining method is established, including the roof rock integrity and the roof-surrounding rock displacement. A comprehensive evaluation method for roof stability grades is proposed based on the coupling of evaluation index grading criteria and improved analytic hierarchy process (AHP) weight assignment. A handheld mobile intelligent platform for roof stability evaluation, roof hazard zone, and control suggestion is developed. The research results have been applied in the coal mine of Hecaogou with good outcomes. This intelligent stability evaluation system will provide an economical and effective approach to achieving sustainable use of coal resources.

Suggested Citation

  • Qizhi Chen & Baoping Zou & Zhigang Tao & Manchao He & Bo Hu, 2023. "Construction and Application of an Intelligent Roof Stability Evaluation System for the Roof-Cutting Non-Pillar Mining Method," Sustainability, MDPI, vol. 15(3), pages 1-17, February.
    • Handle: RePEc:gam:jsusta:v:15:y:2023:i:3:p:2670-:d:1054836
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    References listed on IDEAS

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    1. Yajun Wang & Yubing Gao & Eryu Wang & Manchao He & Jun Yang, 2018. "Roof Deformation Characteristics and Preventive Techniques Using a Novel Non-Pillar Mining Method of Gob-Side Entry Retaining by Roof Cutting," Energies, MDPI, vol. 11(3), pages 1-17, March.
    2. Yubing Gao & Dongqiao Liu & Xingyu Zhang & Manchao He, 2017. "Analysis and Optimization of Entry Stability in Underground Longwall Mining," Sustainability, MDPI, vol. 9(11), pages 1-19, November.
    3. Xiaojie Yang & Eryu Wang & Yajun Wang & Yubing Gao & Pu Wang, 2018. "A Study of the Large Deformation Mechanism and Control Techniques for Deep Soft Rock Roadways," Sustainability, MDPI, vol. 10(4), pages 1-20, April.
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