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Research and Application of Active Support and Pressure Relief Protection in Deep Mines

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Abstract

In recent years, with the extension of the coal mine at depth, rock bursts are more and more frequent. Therefore, the research of roadway support and pressure relief has become the key to prevent rock burst. In this paper, the primary high strength support and hydraulic fracturing pressure relief measures of roadway are studied and analysed. The primary high strength support emphasizes the matching characteristics of support materials, strengthen the protection of the active support to the roadway, and realize an integrated support system. Considering strong burst-prone area, the hydraulic fracturing is used to achieve pressure relief of surrounding rock mass, which can release and transfer the energy within the range of pressure relief. When there is energy release outside the range of protection system, the pressure relief region can absorb the energy so as to achieve the purpose of protecting the roadway. A field engineering case is applicated, the results shown that the stress of roadway surrounding rock and micro seismic energy significantly decreases, reducing the possibility of rock bursts.

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Authors and Affiliations

  1. Linyi Mining Group Heze Coal Power Co. Ltd, Yuncheng, China

    Cunlu Li, Yanpeng Zhao, Jilu Wu, Wa Ma, Shibao Shen & Haoran Lu

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

    Haojie Xue & Yubing Gao

  3. School of Mechanics and Civil Engineering, China University of Mining and Technology (Beijing), Beijing, China

    Haojie Xue & Yubing Gao

Authors
  1. Cunlu Li
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  2. Yanpeng Zhao
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  3. Haojie Xue
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  4. Jilu Wu
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  5. Wa Ma
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  6. Shibao Shen
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  7. Yubing Gao
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  8. Haoran Lu
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Correspondence to Haojie Xue.

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Li, C., Zhao, Y., Xue, H. et al. Research and Application of Active Support and Pressure Relief Protection in Deep Mines. Geotech Geol Eng 40, 2157–2165 (2022). https://doi.org/10.1007/s10706-021-02018-0

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  • DOI: https://doi.org/10.1007/s10706-021-02018-0

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