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Case Study of Roadway Deformation Failure Mechanisms: Field Investigation and Numerical Simulation

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  • Guang Li

    (Key Laboratory of Shale Gas and Geoengineering, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China
    Innovation Academy for Earth Science, Chinese Academy of Sciences, Beijing 100029, China
    University of Chinese Academy of Sciences, Beijing 100049, China)

  • Fengshan Ma

    (Key Laboratory of Shale Gas and Geoengineering, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China
    Innovation Academy for Earth Science, Chinese Academy of Sciences, Beijing 100029, China)

  • Jie Guo

    (Key Laboratory of Shale Gas and Geoengineering, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China
    Innovation Academy for Earth Science, Chinese Academy of Sciences, Beijing 100029, China)

  • Haijun Zhao

    (Key Laboratory of Shale Gas and Geoengineering, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China
    Innovation Academy for Earth Science, Chinese Academy of Sciences, Beijing 100029, China)

Abstract

The safety of underground roadways is a major issue in mining engineering, with economic impacts and potential threats to the lives of workers. Elucidating the deformation failure mechanisms is necessary to solve these problems. The deformation failure modes and characteristics of roadways buried at various depths were investigated using a detailed field survey in the Jinchuan nickel mine. At greater depths, roadway deformation was more serious, the creep phenomena were more prominent, and support structures were more prone to failure. Numerical simulations were performed on the roadways under various geo-stresses and rock mass structures, which indicated that the roadway deformation mode was mainly controlled by a rock mass structure in a lower stress environment and the control effect was weakened with the gradual increase of ground stress. Six deformation failure types were proposed to examine roadway deformation failure mechanisms. Field representation of each failure type was characterized under natural or induced conditions. The findings provide a reference for stability evaluation and support the design of roadway engineering under similar geological conditions.

Suggested Citation

  • Guang Li & Fengshan Ma & Jie Guo & Haijun Zhao, 2021. "Case Study of Roadway Deformation Failure Mechanisms: Field Investigation and Numerical Simulation," Energies, MDPI, vol. 14(4), pages 1-15, February.
    • Handle: RePEc:gam:jeners:v:14:y:2021:i:4:p:1032-:d:500128
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    References listed on IDEAS

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    1. Guang Li & Fengshan Ma & Gang Liu & Haijun Zhao & Jie Guo, 2019. "A Strain-Softening Constitutive Model of Heterogeneous Rock Mass Considering Statistical Damage and Its Application in Numerical Modeling of Deep Roadways," Sustainability, MDPI, vol. 11(8), pages 1-19, April.
    2. Peng Li & Xingping Lai & Peilin Gong & Chao Su & Yonglu Suo, 2020. "Mechanisms and Applications of Pressure Relief by Roof Cutting of a Deep-Buried Roadway near Goafs," Energies, MDPI, vol. 13(21), pages 1-16, November.
    3. Xinshuai Shi & Hongwen Jing & Zhenlong Zhao & Yuan Gao & Yuanchao Zhang & Ruodi Bu, 2020. "Physical Experiment and Numerical Modeling on the Failure Mechanism of Gob-Side Entry Driven in Thick Coal Seam," Energies, MDPI, vol. 13(20), pages 1-24, October.
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    Cited by:

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    2. Megavath Vijay Kumar & T. Subba Reddy & P. Sarala & P. Srinivasa Varma & Obbu Chandra Sekhar & Abdulrahman Babqi & Yasser Alharbi & Basem Alamri & Ch. Rami Reddy, 2022. "Experimental Investigation and Performance Characteristics of Francis Turbine with Different Guide Vane Openings in Hydro Distributed Generation Power Plants," Energies, MDPI, vol. 15(18), pages 1-24, September.
    3. Guang Li & Rong Lu & Fengshan Ma & Jie Guo, 2022. "Analysis of Acoustic Emission Characteristics and Failure Mode of Deep Surrounding Rock of Sanshandao Gold Mine," IJERPH, MDPI, vol. 19(20), pages 1-16, October.
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