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Case Studies of Rock Bursts in Tectonic Areas with Facies Change

Author

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  • Weiyao Guo

    (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
    School of Mining and Safety Engineering, Shandong University of Science and Technology, Qingdao 266590, China)

  • Qingheng Gu

    (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
    School of Mining and Safety Engineering, Shandong University of Science and Technology, Qingdao 266590, China)

  • Yunliang Tan

    (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
    School of Mining and Safety Engineering, Shandong University of Science and Technology, Qingdao 266590, China)

  • Shanchao Hu

    (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
    School of Mining and Safety Engineering, Shandong University of Science and Technology, Qingdao 266590, China)

Abstract

Although tectonic areas with facies change (i.e., variation of coal seam thickness, coal seam dip angle, or coal quality) are one of the three major geological structures that induce rock bursts, case studies of rock bursts in these tectonic structures are rare. The main objective of this study is to illustrate this issue and provide case studies that may inspire future research. Based on several typical cases of rock bursts induced by tectonic areas with facies change, the conditions conducive for these bursts are introduced and investigated in detail. Subsequently, numerical simulation is performed, showing that stress concentration exists in regions with variable coal seam thicknesses or dip angle. When stoping or tunnelling approaches this region, the peak stress increases rapidly. Thus, the burst occurs via a mechanism involving the superposition of high in-situ stress from tectonic areas with facies change and abutment pressure from stoping or tunnelling, leading to high stress concentration. Strategies for mitigating rock bursts are also provided. Rock bursts induced by tectonic areas with facies change can be mitigated by avoiding regions of high tectonic stress concentration and reducing mining induced stress.

Suggested Citation

  • Weiyao Guo & Qingheng Gu & Yunliang Tan & Shanchao Hu, 2019. "Case Studies of Rock Bursts in Tectonic Areas with Facies Change," Energies, MDPI, vol. 12(7), pages 1-11, April.
    • Handle: RePEc:gam:jeners:v:12:y:2019:i:7:p:1330-:d:220716
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    References listed on IDEAS

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    1. Cheng Zhai & Xianwei Xiang & Jizhao Xu & Shiliang Wu, 2016. "The characteristics and main influencing factors affecting coal and gas outbursts in Chinese Pingdingshan mining region," Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, Springer;International Society for the Prevention and Mitigation of Natural Hazards, vol. 82(1), pages 507-530, May.
    2. Haochen Zhao & Rennie B. Kaunda, 2018. "Numerical Assessment of the Influences of Gas Pressure on Coal Burst Liability," Energies, MDPI, vol. 11(2), pages 1-13, January.
    3. Ning Li & R. Jimenez, 2018. "A logistic regression classifier for long-term probabilistic prediction of rock burst hazard," Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, Springer;International Society for the Prevention and Mitigation of Natural Hazards, vol. 90(1), pages 197-215, January.
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    Cited by:

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    2. Chunjing Gao & Dongmei Huang & Xikun Chang & Han Xi, 2019. "Risk Analysis and Extension Assessment for the Stability of Surrounding Rock in Deep Coal Roadway," IJERPH, MDPI, vol. 16(23), pages 1-16, November.
    3. Tong-bin Zhao & Wei Zhang & Wei-yao Guo, 2019. "Digital Image Correlation Analysis of Displacement Based on Corrected Three Surface Fitting Algorithm," Complexity, Hindawi, vol. 2019, pages 1-9, September.

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