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    Integrated Approach for Structural Stability Evaluation Using Real-Time Monitoring and Statistical Analysis: Underwater Shield Tunnel Case Study

    Source: Journal of Performance of Constructed Facilities:;2020:;Volume ( 034 ):;issue: 002
    Author:
    Xuyan Tan
    ,
    Weizhong Chen
    ,
    Luyu Wang
    ,
    Xianjun Tan
    ,
    Jianping Yang
    DOI: 10.1061/(ASCE)CF.1943-5509.0001391
    Publisher: ASCE
    Abstract: Real-time monitoring of underwater construction is important for structural stability. To prevent tunnel disasters, an integrated analysis framework for tunnel stability evaluation was proposed using real-time monitoring and statistical analysis. A typical underwater shield tunnel, located in the Yangtze River, China, was selected as a case study. A structural health monitoring system (SHMS) was developed to implement real-time monitoring of the water pressure, temperature, and strain during the service period. An analytical model was developed to investigate the mechanical behaviors of the structure based on the monitoring data obtained from the SHMS. To calibrate the model parameters, numerical simulations were carried out using the finite element method with parameters based on the geological conditions for the study site. Consequently, the results indicate that (1) the numerical results agreed well with the analytical results, which showed that the response of the segment strain varied with position and the maximum strain occurred in the arch crown; (2) the segment strain increased with decreasing water pressure, and the maximum value was 4.118×10−7 when the water pressure changed by 1 kPa; and (3) the strain variation and temperature were proportional, and the maximum value was 13.492×10−6 when the temperature changed by 1°C. As a potential application, the proposed method was used to predict future behaviors of the structure, which is crucial for preventing disasters, and provides a reference for underwater construction.
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      Integrated Approach for Structural Stability Evaluation Using Real-Time Monitoring and Statistical Analysis: Underwater Shield Tunnel Case Study

    URI
    http://yetl.yabesh.ir/yetl1/handle/yetl/4265029
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    contributor authorXuyan Tan
    contributor authorWeizhong Chen
    contributor authorLuyu Wang
    contributor authorXianjun Tan
    contributor authorJianping Yang
    date accessioned2022-01-30T19:18:15Z
    date available2022-01-30T19:18:15Z
    date issued2020
    identifier other%28ASCE%29CF.1943-5509.0001391.pdf
    identifier urihttp://yetl.yabesh.ir/yetl1/handle/yetl/4265029
    description abstractReal-time monitoring of underwater construction is important for structural stability. To prevent tunnel disasters, an integrated analysis framework for tunnel stability evaluation was proposed using real-time monitoring and statistical analysis. A typical underwater shield tunnel, located in the Yangtze River, China, was selected as a case study. A structural health monitoring system (SHMS) was developed to implement real-time monitoring of the water pressure, temperature, and strain during the service period. An analytical model was developed to investigate the mechanical behaviors of the structure based on the monitoring data obtained from the SHMS. To calibrate the model parameters, numerical simulations were carried out using the finite element method with parameters based on the geological conditions for the study site. Consequently, the results indicate that (1) the numerical results agreed well with the analytical results, which showed that the response of the segment strain varied with position and the maximum strain occurred in the arch crown; (2) the segment strain increased with decreasing water pressure, and the maximum value was 4.118×10−7 when the water pressure changed by 1 kPa; and (3) the strain variation and temperature were proportional, and the maximum value was 13.492×10−6 when the temperature changed by 1°C. As a potential application, the proposed method was used to predict future behaviors of the structure, which is crucial for preventing disasters, and provides a reference for underwater construction.
    publisherASCE
    titleIntegrated Approach for Structural Stability Evaluation Using Real-Time Monitoring and Statistical Analysis: Underwater Shield Tunnel Case Study
    typeJournal Paper
    journal volume34
    journal issue2
    journal titleJournal of Performance of Constructed Facilities
    identifier doi10.1061/(ASCE)CF.1943-5509.0001391
    page04019118
    treeJournal of Performance of Constructed Facilities:;2020:;Volume ( 034 ):;issue: 002
    contenttypeFulltext
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    DSpace software copyright © 2002-2015  DuraSpace
    نرم افزار کتابخانه دیجیتال "دی اسپیس" فارسی شده توسط یابش برای کتابخانه های ایرانی | تماس با یابش
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