Mechanical behavior of sspc segment used in launching and arrival of shield machine in soft ground

Wenjun Zhang, Gaole Zhang, Huayang Lei, Mingming Jin, Atsushi Koizumi

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Abstract

    Soft ground usually has complicated geological surroundings and lacks enough carrying capability. Due to this, uneven settlement of shield tunnel is inevitable and can be fairly large even if the construction technology has improved observably. SSPC (steel segments with pre-filled concrete) segment has been developed and used for reducing ground settlement and smoothly launching and receiving shield machine in soft ground. However, a rational design method for SSPC segment can not be established because its mechanical behaviors are not clarified up to now. Therefore, the purpose of this paper is to study the mechanical behavior of SSPC segment using finite element method and groups of four-point bending tests. The failure modes of SSPC segment were also investigated through experiments and finite element analysis. Comparisons show that the proposed finite element model is suitable for SSPC segment and can predict the mechanical behaviors of SSPC segment accurately. The relevant conclusions of this study, therefore, will provide improved methodology and guidance for the design and numerical analysis of SSPC segment.

    Original languageEnglish
    Title of host publicationTransportation Research Congress 2016
    Subtitle of host publicationInnovations in Transportation Research Infrastructure - Proceedings of the Transportation Research Congress 2016
    PublisherAmerican Society of Civil Engineers (ASCE)
    Pages614-626
    Number of pages13
    Volume2018-January
    ISBN (Electronic)9780784481240
    Publication statusPublished - 2018 Jan 1
    EventTransportation Research Congress 2016: Innovations in Transportation Research Infrastructure - Beijing, China
    Duration: 2016 Jun 62016 Jun 8

    Other

    OtherTransportation Research Congress 2016: Innovations in Transportation Research Infrastructure
    CountryChina
    CityBeijing
    Period16/6/616/6/8

    Keywords

    • Failure modes
    • Mechnical behavior
    • Shield tunnel
    • SSPC segment

    ASJC Scopus subject areas

    • Computer Science Applications
    • Transportation
    • Automotive Engineering
    • Management Science and Operations Research

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