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Research on Coupling Control Technology of Constant Resistance in Gob-side Entry Under Mined Gob of Recent Coal Seam Group

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Abstract

Taking the deep gob-side entry under the mined gob in the Nantun coal mine as the background, indoor physical mechanic property research, situ engineering geomechanics analysis, theoretical formula analysis and three-dimensional numerical simulation were adopted. The type of deformation mechanism of this roadway was confirmed. The coupling control technology of constant resistance was proposed and used in practice successfully in situ engineering. Practice was proved that the coupling technology of constant resistance based on NPR bolt could absorb the energy accumulated in surrounding rock and ensure the total safety of the roadway.

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Acknowledgements

This work was supported by the National Key Research and Development Plan of China (Grant No. 2016YFC0600901), the National Natural Science Foundation of China (Grant No. 51874311), the Special Fund of Basic Research and Operating of China University of Mining & Technology, Beijing (Grant No. 2009QL03), and the Yueqi Outstanding Scholar Award Program of China University of Mining and Technology, Beijing.

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Authors and Affiliations

  1. School of Civil and Architecture Engineering, China University of Mining and Technology (Beijing), Beijing, 100083, China

    Yong Zhang, Xing Xia, Xiao-ming Sun, Peng Song, Jian Wang, Shi-jie Sun & Chen Chen

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

    Yong Zhang, Xing Xia, Xiao-ming Sun, Peng Song, Jian Wang, Shi-jie Sun & Chen Chen

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  1. Yong Zhang
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  2. Xing Xia
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  3. Xiao-ming Sun
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  4. Peng Song
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  5. Jian Wang
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  6. Shi-jie Sun
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  7. Chen Chen
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Correspondence to Xing Xia.

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Zhang, Y., Xia, X., Sun, Xm. et al. Research on Coupling Control Technology of Constant Resistance in Gob-side Entry Under Mined Gob of Recent Coal Seam Group. Geotech Geol Eng 38, 4685–4699 (2020). https://doi.org/10.1007/s10706-020-01319-0

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  • DOI: https://doi.org/10.1007/s10706-020-01319-0

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