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Numerical Investigation on Factors Affecting Stability of Roadway Surrounding Rock with Fractured Roof

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Abstract

Based on the feature of roadway surrounding rock with fractured roof, the influencing factors on the stability of roadway surrounding rock with fractured roof were analyzed. It was found that the main controlling factors affecting the deformation and failure of roadway surrounding rock with fractured roof are ground stress, roof strength and joint properties. Thus, numerical software UDEC was used to investigate these factors on the stability of roadway surrounding rock. Numerical results indicate that the greater the ground stress, the greater the roadway deformation. The weaker the roof strength, the larger the roadway deformation range. Roadway deformation increases rapidly with decreased joint properties.

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Acknowledgements

Financial support for this work was supported by the State Key Research Development Program of China (No. 2016YFC0801403), Shandong Provincial Natural Science Foundation, China (No. ZR2018MEE009).

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Authors and Affiliations

  1. State Key Laboratory of Mining Disaster Prevention and Control Co-founded by Shandong Province and the Ministry of Science and Technology, Shandong University of Science and Technology, Qingdao, 266590, China

    Ke Ding, Shitan Gu, Jiaxing Guo, Dong Gu, Zheng Liu & Baozhen Wei

  2. College of Mining and Safety Engineering, Shandong University of Science and Technology, Qingdao, 266590, China

    Ke Ding, Shitan Gu, Jiaxing Guo, Dong Gu, Zheng Liu & Baozhen Wei

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  1. Ke Ding
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  2. Shitan Gu
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  3. Jiaxing Guo
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  4. Dong Gu
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  5. Zheng Liu
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  6. Baozhen Wei
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Correspondence to Shitan Gu.

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Ding, K., Gu, S., Guo, J. et al. Numerical Investigation on Factors Affecting Stability of Roadway Surrounding Rock with Fractured Roof. Geotech Geol Eng 37, 2373–2385 (2019). https://doi.org/10.1007/s10706-018-00762-4

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  • DOI: https://doi.org/10.1007/s10706-018-00762-4

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