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Volume 41 Issue 12
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XIE Xiong-yao, YI Cheng-min, LI Wei-ping, FANG Yong-gang. Safety analysis of settlement monitoring data of joints of Yongjiang immersed tube tunnel during operation period[J]. Chinese Journal of Geotechnical Engineering, 2019, 41(12): 2338-2344. DOI: 10.11779/CJGE201912020
Citation: XIE Xiong-yao, YI Cheng-min, LI Wei-ping, FANG Yong-gang. Safety analysis of settlement monitoring data of joints of Yongjiang immersed tube tunnel during operation period[J]. Chinese Journal of Geotechnical Engineering, 2019, 41(12): 2338-2344. DOI: 10.11779/CJGE201912020
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Safety analysis of settlement monitoring data of joints of Yongjiang immersed tube tunnel during operation period

  • 1. Key Laboratory of Geotechnical and Underground Engineering, Ministry of Education, Tongji University, Shanghai 200092, China;
    2. Department of Underground Building Engineering, School of Civil Engineering, Tongji University, Shanghai 200092, China;
    3. Institute of Transportation Planning and Design of Zhejiang Province, Hangzhou 310000, China

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  • Received Date: February 20, 2019
  • Published Date: December 24, 2019
    Graphical Abstract
    • Abstract
  • The mechanical properties of immersed tunnel joints are the key to their safe operation. By analyzing the monitoring data of joint settlement of Yongjiang immersed tube tunnel in Ningbo for 23 years operation, the relationship between uneven settlement of immersed tube tunnel in soft soil foundation and joint deformation of immersed tube tunnel is found, and the laws and reasons of uneven settlement are analyzed and discussed. The stress model for GINA waterstop is established, the stress of GINA waterstop caused by joint deformation is calculated, and the safety of joint waterstop is checked. Finally, the safety assessment method for the structures by using the settlement monitoring data of the tunnel through the forced displacement method during its operation is put forward.
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    • References (11)
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