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Heat Hazards in High-Temperature Tunnels: Influencing Factors, Disaster Forms, the Geogenetic Model and a Case Study of a Tunnel in Southwest China

Author

Listed:
  • Chengkun Wang

    (School of Qilu Transportation, Shandong University, Jinan 250061, China)

  • Zhengyu Liu

    (Geotechnical and Structural Engineering Research Center, Shandong University, Jinan 250061, China)

  • Fengkai Zhang

    (Geotechnical and Structural Engineering Research Center, Shandong University, Jinan 250061, China)

  • Qian Guo

    (School of Future Technology, Shandong University, No. 17923 Jingshi Road, Jinan 250061, China
    School of Water Conservancy and Environment, University of Jinan, No. 336 Nanxinzhuang Sourth Road, Jinan 250022, China)

  • Zhao Dong

    (School of Civil Engineering, Shandong University, Jinan 250061, China)

  • Peng Bai

    (School of Qilu Transportation, Shandong University, Jinan 250061, China)

Abstract

The construction of extensive tunnels in regions characterized by high geothermal activity presents significant challenges and inherent risks that affect both the safety and operational efficiency of construction personnel. This study investigated the factors influencing geothermal fields in shallow crustal rock formations through a comprehensive examination of existing literature and a detailed analysis of case studies. In addition, this study categorizes the geogenetic models of high-temperature heat hazards into three major classifications. Research findings indicate that several key factors significantly influence the geothermal fields. These factors, which include the deep geothermal background, heat transfer conditions, and localized additional heat sources, are paramount in shaping the geothermal field. Notably, it is observed that among these factors, the presence of additional heat sources, particularly the circulation of underground hot water, poses the most considerable threat to safety and operational efficiency. Moreover, this study utilizes a representative high geothermal tunnel in Southwest China to conduct a field investigation. This investigation assesses the potential for high-temperature thermal hazards within the tunnels, evaluates the geological conditions, verifies the factors governing the geothermal field, and outlines specific measures for the prevention and control of high geothermal tunnels. In conclusion, this study provides a structured analysis of lessons learned from these experiences, along with practical countermeasures for addressing high-temperature thermal hazards during the various stages of tunnel construction. The findings of this research serve as a valuable reference for those investigating the mechanisms behind geothermal disasters in tunnel construction. Furthermore, they offer practical guidance to ensure the secure and efficient excavation and sustainable operation of tunnels in the challenging geological environments characterized by high geothermal temperatures.

Suggested Citation

  • Chengkun Wang & Zhengyu Liu & Fengkai Zhang & Qian Guo & Zhao Dong & Peng Bai, 2024. "Heat Hazards in High-Temperature Tunnels: Influencing Factors, Disaster Forms, the Geogenetic Model and a Case Study of a Tunnel in Southwest China," Sustainability, MDPI, vol. 16(3), pages 1-17, January.
    • Handle: RePEc:gam:jsusta:v:16:y:2024:i:3:p:1044-:d:1326459
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    References listed on IDEAS

    as
    1. Edwin Villagrán & Jorge Flores-Velazquez & Mohammad Akrami & Carlos Bojacá, 2021. "Influence of the Height in a Colombian Multi-Tunnel Greenhouse on Natural Ventilation and Thermal Behavior: Modeling Approach," Sustainability, MDPI, vol. 13(24), pages 1-26, December.
    2. Guowang Meng & Hongle Li & Bo Wu & Guangyang Liu & Huazheng Ye & Yiming Zuo, 2023. "Prediction of the Tunnel Collapse Probability Using SVR-Based Monte Carlo Simulation: A Case Study," Sustainability, MDPI, vol. 15(9), pages 1-21, April.
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