Mechanism for buckling of shield tunnel linings under hydrostatic pressure

J. H. Wang, W. J. Zhang, X. Guo, A. Koizumi, H. Tanaka

    Research output: Contribution to journalArticle

    12 Citations (Scopus)

    Abstract

    In this paper, the effects of segmental joints, dimensions of segments, and ground conditions on buckling of the shield tunnel linings under hydrostatic pressure are studied by analytical and numerical analysis. The results show that radial joints have significant impacts on the buckling behavior: the shield tunnel linings with flexible joints buckles in a single wave mode in the vicinity of K joint, while those with rigid joints buckles in a multi-wave mode around the linings. Hydrostatic buckling strength is found to increase with the flexural rigidity of the radial joint and the thickness of segment increasing. This study shows that ground support increases the buckling strength dramatically, while earth pressure reduces the capacity to resist hydrostatic buckling. The tunnel linings during construction are found to be easier to buckle than that during operation. Meanwhile, the buckling of tunnel linings is studied by theoretical analysis of buried tube buckling.

    Original languageEnglish
    Pages (from-to)144-155
    Number of pages12
    JournalTunnelling and Underground Space Technology
    Volume49
    DOIs
    Publication statusPublished - 2015 Jun 1

    Keywords

    • Buckling
    • Hydrostatic pressure
    • Segmental joint
    • Shield tunnel

    ASJC Scopus subject areas

    • Geotechnical Engineering and Engineering Geology
    • Building and Construction

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