Tunnels in the operation period are faced with different types of diseases, such as lining fracture, lining containing voids and lining leakage. In this paper, the common tunnel lining diseases are classified and ground-penetrating radar (GPR) is adopted to detect the tunnel lining diseases rapidly and nondestructively. The finite-difference time-domain (FDTD) method is used to carry out numerical experiments on GPR detection forward modelling and backward projection imaging. An interpretation criterion of GPR detection was established on typical lining diseases. Based on the dielectric differences between before and after grouting of tunnel lining, GPR is introduced into the evaluation of grouting on leakage in tunnel lining, and the numerical simulation of grouting effect is carried out. It can be concluded that GPR imaging can well-identify the dielectric changes before and after grouting and evaluate the grouting reinforcement effect more intuitively. Finally, this method was applied to a practical case in Kaiyuan tunnel, China. This paper provides an alternative way to detect tunnel lining leakage in operation period and a reference for the evaluation of structural defects reinforcement in underground engineering.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Forward Modelling and GPR Imaging in Leakage Detection and Grouting Evaluation in Tunnel Lining


    Weitere Titelangaben:

    KSCE J Civ Eng


    Beteiligte:
    Lin, Chunjin (Autor:in) / Wang, Xintong (Autor:in) / Li, Yao (Autor:in) / Zhang, Fengkai (Autor:in) / Xu, Zhenhao (Autor:in) / Du, Yuchao (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    2020-01-01


    Format / Umfang :

    17 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




    Hydraulic plugging device for grouting hole of tunnel lining trolley

    MI HUI / FENG HAICHAO / DI FANGGUO et al. | Europäisches Patentamt | 2021

    Freier Zugriff

    Quick Maintenance for Tunnel Lining Voids with Polymer Grouting Technology

    Xu, J. / Wang, F. / Wang, B. | British Library Conference Proceedings | 2009


    Cable tunnel lining water leakage detection device and contour modeling method

    WANG XIAOLONG / ZHU JINGJING / GE HAIMING et al. | Europäisches Patentamt | 2023

    Freier Zugriff

    Parameter Optimization for the Thickness and Hydraulic Conductivity of Tunnel Lining and Grouting Rings

    Xu, Zhenhao / Wang, Xintong / Li, Shucai et al. | Springer Verlag | 2019


    Parameter Optimization for the Thickness and Hydraulic Conductivity of Tunnel Lining and Grouting Rings

    Xu, Zhenhao / Wang, Xintong / Li, Shucai et al. | Online Contents | 2019