Numerical model verification and calibration of George Massey Tunnel using centrifuge models

Dan Yang, Ernest Naesgaard, Peter M. Byrne, Korhan Adalier, Tarek Abdoun

    Research output: Contribution to journalArticle

    Abstract

    Dynamic soil-structure interaction analyses were carried out for the seismic retrofit design of the immersed George Massey Tunnel, both to predict and study soil liquefaction and related tunnel movements and to design ground improvement. The proposed ground improvement included ground densification using vibroreplacement stone columns along both sides of the tunnel and seismic gravel drains adjacent to the outer edge of the densified zones. The densification and drainage were proposed to locally mitigate soil liquefaction and reduce displacements of the tunnel to tolerable levels. Centrifuge model tests with base shaking to simulate earthquake effects were conducted to verify and calibrate the numerical models. This included simulating the effects of ground densification and drainage on remediating tunnel movements. This paper presents the principal results from the dynamic analyses, the centrifuge model design and testing procedure, the class A predictions of the centrifuge tests, and discussions of the centrifuge test results and numerical model calibrations.

    Original languageEnglish (US)
    Pages (from-to)921-942
    Number of pages22
    JournalCanadian Geotechnical Journal
    Volume41
    Issue number5
    DOIs
    StatePublished - Oct 1 2004

    Fingerprint

    Centrifuges
    centrifuge
    Numerical models
    Tunnels
    tunnel
    Calibration
    calibration
    Densification
    Soil liquefaction
    ground improvement
    liquefaction
    Drainage
    Earthquake effects
    seismic retrofit
    drainage
    Soil structure interactions
    soil-structure interaction
    Seismic design
    Gravel
    model test

    Keywords

    • Centrifuge testing
    • Design verification
    • Immersed tunnel
    • Numerical calibration
    • Seismic retrofit
    • Soil liquefaction

    ASJC Scopus subject areas

    • Geotechnical Engineering and Engineering Geology

    Cite this

    Numerical model verification and calibration of George Massey Tunnel using centrifuge models. / Yang, Dan; Naesgaard, Ernest; Byrne, Peter M.; Adalier, Korhan; Abdoun, Tarek.

    In: Canadian Geotechnical Journal, Vol. 41, No. 5, 01.10.2004, p. 921-942.

    Research output: Contribution to journalArticle

    Yang, Dan ; Naesgaard, Ernest ; Byrne, Peter M. ; Adalier, Korhan ; Abdoun, Tarek. / Numerical model verification and calibration of George Massey Tunnel using centrifuge models. In: Canadian Geotechnical Journal. 2004 ; Vol. 41, No. 5. pp. 921-942.
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