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Monitoring and Analysis of Geotemperature during the Tunnel Construction

Author

Listed:
  • Tao Wen

    (State Key Laboratory of Precision Blasting, Jianghan University, Wuhan 430056, China
    School of Geosciences, Yangtze University, Wuhan 430100, China)

  • Zheng Hu

    (Power China Guiyang Engineering Corporation, Limited, Guiyang 550081, China
    Guizhou BIM Engineering and Technology Research Center, Guiyang 550081, China)

  • Yankun Wang

    (School of Geosciences, Yangtze University, Wuhan 430100, China)

  • Zihan Zhang

    (School of Geosciences, Yangtze University, Wuhan 430100, China)

  • Jinshan Sun

    (State Key Laboratory of Precision Blasting, Jianghan University, Wuhan 430056, China)

Abstract

High geotemperatures are encountered during tunnel construction in areas with complex geological structures, which can seriously affect personnel and equipment in the process of tunnel construction and operation. The Nige tunnel, a deep-buried extra-long tunnel, was selected to monitor the geotemperature during construction. The air, rock, and water temperatures during the tunnel construction were measured at the tunnel face, and the actual temperatures of the rock or water body at the tunnel face were measured by advanced drilling. The variation trends of the water temperature, air temperature, and flow of water with the tunnel mileage were analyzed. The differences in three measured rock temperatures in three advanced drillings were revealed. The results showed that the Nige tunnel had a maximum water temperature of 63.4 °C, maximum rock temperature (Rock T) of 88.8 °C, and maximum air temperature (Air T) of 56.4 °C. Increasing trends of the air, rock, and water temperatures with the tunnel’s horizontal distance and the buried depth (vertical depth) were obvious, and the geotemperature gradient was approximately 7.6 °C per 100 m. Additionally, the variation laws of the construction ambient temperature with time in a complete construction cycle showed four stage characteristics, and each stage presented different mathematical relationships. These findings will provide guidance for the construction of high geotemperature tunnels in future.

Suggested Citation

  • Tao Wen & Zheng Hu & Yankun Wang & Zihan Zhang & Jinshan Sun, 2022. "Monitoring and Analysis of Geotemperature during the Tunnel Construction," Energies, MDPI, vol. 15(3), pages 1-16, January.
    • Handle: RePEc:gam:jeners:v:15:y:2022:i:3:p:736-:d:728813
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    References listed on IDEAS

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    1. Muhammad Qarinur & Sho Ogata & Naoki Kinoshita & Hideaki Yasuhara, 2020. "Predictions of Rock Temperature Evolution at the Lahendong Geothermal Field by Coupled Numerical Model with Discrete Fracture Model Scheme," Energies, MDPI, vol. 13(12), pages 1-23, June.
    2. Guoqing Chen & Tianbin Li & Guofeng Zhang & Hongyu Yin & Hang Zhang, 2014. "Temperature effect of rock burst for hard rock in deep-buried tunnel," 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. 72(2), pages 915-926, June.
    3. Wei Meng & Chuan He, 2020. "Back Analysis of the Initial Geo-Stress Field of Rock Masses in High Geo-Temperature and High Geo-Stress," Energies, MDPI, vol. 13(2), pages 1-20, January.
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    Cited by:

    1. Daru Hu & Tao Wen & Shuyu Wu & Wanying Huang & Huanchun Zhu, 2023. "The Deformation Characteristics of the Zhuka Fault in Lancang River and Its Influence on the Geostress Field," Sustainability, MDPI, vol. 15(18), pages 1-22, September.

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