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Dynamic Response of Lining Structure in a Long Tunnel with Different Adverse Geological Structure Zone Subjected to Non-Uniform Seismic Load

Author

Listed:
  • Yongqiang Zhou

    (State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071, China)

  • Hongchao Wang

    (China Railway Eryuan Engineering Group Co., Ltd., Chengdu 610031, China)

  • Dingfeng Song

    (China State Construction International Investments (Hubei) Limited, Wuhan 430000, China
    China State Construction International Holdings Limited, Hong Kong 999077, China)

  • Qian Sheng

    (State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071, China
    School of Engineering Science, University of Chinese Academy of Sciences, Beijing 100049, China)

  • Xiaodong Fu

    (State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071, China)

  • Haifeng Ding

    (State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071, China
    School of Engineering Science, University of Chinese Academy of Sciences, Beijing 100049, China)

  • Shaobo Chai

    (School of Civil Engineering, Chang’an University, Xi’an 710061, China)

  • Wei Yuan

    (Key Laboratory of Roads and Railway Engineering Safety Control of Ministry of Education, Shijiazhuang Tiedao University, Shijiazhuang 050043, China)

Abstract

The damage of a long tunnel is found in parts with an adverse geological structure zone under an earthquake. The phenomenon is normally the consequence of a non-uniform seismic load. Thus, to reveal the mechanism of the phenomenon, the dynamic response of the lining structure in a long tunnel passing through an adverse geological structure zone subjected to a non-uniform seismic load is mainly studied in this paper. Firstly, based on the random ground motion synthesis theory, the non-uniform ground motion acceleration–time history curves that reflect local site effects, such as traveling wave effects and attenuation effects, are generated. Secondly, the behavior of the tunnel with a different adverse geological structure zone (including different inclinations, thicknesses, and lithologies) under non-uniform seismic input is studied. Then, the impact of the different adverse geological structure zone on the internal force and safety factor of the tunnel lining is analyzed. Finally, the failure characteristics of the lining structure in the tunnel crossing through the adverse geological structure zone subjected to a non-uniform seismic load are revealed. The results show that the seismic dynamic responses significantly increase under non-uniform seismic input compared with the results under uniform seismic input, and the dynamic responses distribution along the tunnel axial is distinctly different under non-uniform seismic input. The inclination and thickness of the adverse geological structure zone have a significant influence on the internal force and safety factor of the tunnel lining, while the lithology mainly acts around the adverse geological structure zone. When the inclination angle of the adverse geological structure zone is 45°, a large number of compression-bending cracks appear in the entrance and exit sections of the tunnel, and the tunnel is in the most dangerous state.

Suggested Citation

  • Yongqiang Zhou & Hongchao Wang & Dingfeng Song & Qian Sheng & Xiaodong Fu & Haifeng Ding & Shaobo Chai & Wei Yuan, 2022. "Dynamic Response of Lining Structure in a Long Tunnel with Different Adverse Geological Structure Zone Subjected to Non-Uniform Seismic Load," Energies, MDPI, vol. 15(13), pages 1-31, June.
    • Handle: RePEc:gam:jeners:v:15:y:2022:i:13:p:4599-:d:846143
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    Cited by:

    1. Yong Tang & Yong Zheng & Lin Li & Liping Xian & Deping Guo, 2023. "Experimental Study of Dynamic Responses of Special Tunnel Sections under Near-Fault Ground Motion," Sustainability, MDPI, vol. 15(5), pages 1-22, March.

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