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Study of the Effect of Seepage–Cyclic Load Coupling Disturbance on the Physical Field in Old Urban Underground Spaces

Author

Listed:
  • Jinghu Yang

    (Research Institute of Emergency Science, Chinese Institute of Coal Science (CICS), Beijing 100013, China
    China Coal Technology & Engineering Group (CCTEG), Beijing 100013, China)

  • Ye Cheng

    (Research Institute of Emergency Science, Chinese Institute of Coal Science (CICS), Beijing 100013, China
    China Coal Technology & Engineering Group (CCTEG), Beijing 100013, China)

  • Dawei Cui

    (Research Institute of Emergency Science, Chinese Institute of Coal Science (CICS), Beijing 100013, China
    China Coal Technology & Engineering Group (CCTEG), Beijing 100013, China)

  • Zewei Zhang

    (Research Institute of Emergency Science, Chinese Institute of Coal Science (CICS), Beijing 100013, China
    China Coal Technology & Engineering Group (CCTEG), Beijing 100013, China)

  • Bo Zhang

    (Research Institute of Emergency Science, Chinese Institute of Coal Science (CICS), Beijing 100013, China
    China Coal Technology & Engineering Group (CCTEG), Beijing 100013, China)

  • Yixiong Gan

    (Research Institute of Emergency Science, Chinese Institute of Coal Science (CICS), Beijing 100013, China
    China Coal Technology & Engineering Group (CCTEG), Beijing 100013, China)

Abstract

The safety and sustainability of urban underground spaces have become crucial considerations in development projects. Seepage and cyclic loads are the principal reasons for the instability and failure of old underground space structures. This study investigates the variations in physical fields of underground spaces in cities under the coupling disturbance of seepage and cyclic loads, focusing on underground civil air defense engineering in Beijing as a case study. Different seepage conditions and the effects of seepage–cyclic load coupling were simulated using the numerical calculation software Plaxis 3D V20. The results show that change in groundwater can affect the deformation of underground space, and the severity is related to the quantity and intersection state of tunnels, the location of rivers above, and the strength of materials. The coupling effect of seepage–cyclic load on urban underground space structures is more serious than that of a single percolation. Decrease in material strength and high traffic loads are the principal reasons for the failure of underground structures. A 30% decrease in material strength causes the displacement to increase almost 1.5 times, and maximum displacement under different traffic loads can vary by 3 times. This study holds significant implications for the design, maintenance, and engineering management of underground spaces, emphasizing the importance of sustainable practices in urban development and infrastructure.

Suggested Citation

  • Jinghu Yang & Ye Cheng & Dawei Cui & Zewei Zhang & Bo Zhang & Yixiong Gan, 2024. "Study of the Effect of Seepage–Cyclic Load Coupling Disturbance on the Physical Field in Old Urban Underground Spaces," Sustainability, MDPI, vol. 16(9), pages 1-16, April.
    • Handle: RePEc:gam:jsusta:v:16:y:2024:i:9:p:3588-:d:1382172
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    References listed on IDEAS

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    1. Edwar Forero-Ortiz & Eduardo Martínez-Gomariz, 2020. "Hazards threatening underground transport systems," 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. 100(3), pages 1243-1261, February.
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