Numerical analysis of DRC segment under inner water pressure based on full-scale test verification for shield tunnel

W. J. Zhang, J. H. Wang, M. M. Jin, A. Koizumi

    Research output: Contribution to journalArticle

    7 Citations (Scopus)

    Abstract

    Shield tunnel subjected to high inner water pressure is used to prevent waterlogging, and DRC (Ductile cast iron segment and Reinforced Concrete) segment has been developed for obtaining high loading capacity in the linings of underground drain shield tunnel. In general, tunnel linings resist bending moment, hoop and shear forces. Cracks will occur in tunnel linings under high inner water pressure during operating period, while tensile stress will appear at member section. On the basis of the existing experimental results, the crack pattern, relative slip, contact stress, strain distribution, and relationship between deflection and load of DRC segment were investigated by finite element method. A three-dimensional finite element model of DRC segment was proposed to simulate its nonlinear behaviors by applying MSC. Marc software package. Taking the three sources of nonlinearity into account, the proposed numerical model fully presented the complicated behaviors of DRC segment during the whole loading process. Results indicated that the numerical studies agreed well with the experimental tests, and comparisons between them demonstrated that the proposed numerical model could excellently analyze the nonlinear behaviors of DRC segment under combined hoop and bending loads.

    Original languageEnglish
    Pages (from-to)157-167
    Number of pages11
    JournalTunnelling and Underground Space Technology
    Volume56
    DOIs
    Publication statusPublished - 2016 Jun 1

    Fingerprint

    Tunnel linings
    Numerical analysis
    Numerical models
    shield
    tunnel lining
    Tunnels
    tunnel
    Cracks
    crack
    Bending moments
    Cast iron
    Linings
    Tensile stress
    Software packages
    Reinforced concrete
    Water
    Loads (forces)
    waterlogging
    tensile stress
    reinforced concrete

    Keywords

    • DRC segment
    • Inner water pressure
    • Mechanical behaviors
    • Numerical model
    • Relative slip

    ASJC Scopus subject areas

    • Geotechnical Engineering and Engineering Geology
    • Building and Construction

    Cite this

    Numerical analysis of DRC segment under inner water pressure based on full-scale test verification for shield tunnel. / Zhang, W. J.; Wang, J. H.; Jin, M. M.; Koizumi, A.

    In: Tunnelling and Underground Space Technology, Vol. 56, 01.06.2016, p. 157-167.

    Research output: Contribution to journalArticle

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