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    RMR in Urban Tunnel with Risk Factor of Collapse

    Access Status
    Fulltext not available
    Authors
    Jang, Hyong Doo
    Yang, H.
    Date
    2010
    Type
    Conference Paper
    
    Metadata
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    Citation
    Jang, H.D. and Yang, H. 2010. RMR in Urban Tunnel with Risk Factor of Collapse, in Proceedings of the Korean Society for Rock Mechanics Conference, Oct 21 2010. Korean Society for Rock Mechanics.
    Source Conference
    Proceedings of the Korean Society for Rock Mechanics Conference
    Additional URLs
    http://www.ksrm.or.kr/html/
    Faculty
    Faculty of Science and Engineering
    School
    WASM: Minerals, Energy and Chemical Engineering
    URI
    http://hdl.handle.net/20.500.11937/80573
    Collection
    • Curtin Research Publications
    Abstract

    RMR is a largely accepted rock classification method for design of support system in domestic tunnels. However, the RMR system, which is based on geological survey during design stage of tunnel, can not present the real ground conditions accurately. In this study, authors suggests a concept of Weighted-RMR (W-RMR), which considers weighted value of risk factors of collapse to prevent collapse and roof falls during tunneling. By implementing of W-RMR to Bye-Gye tunnel, the support and design flexibility is entailed giving due cognizance to the structural and geological features of the upper part of tunnel face.

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