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    Geotechnical parameter identification of no-tension elastic–plastic model using extended Kalman filter

    Access Status
    Fulltext not available
    Authors
    Yang, C.
    Wu, Yong Hong
    Feng, X.
    Date
    2011
    Type
    Journal Article
    
    Metadata
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    Citation
    Yang, C.-X. and Wu, Y.H. and Feng, X.-T. 2011. Geotechnical parameter identification of no-tension elastic–plastic model using extended Kalman filter. Materials Research Innovations. 15 (S1): pp. S613-S616.
    Source Title
    Materials Research Innovations
    DOI
    10.1179/143307511X12858958235513
    ISSN
    1432-8917
    School
    Department of Mathematics and Statistics
    URI
    http://hdl.handle.net/20.500.11937/42212
    Collection
    • Curtin Research Publications
    Abstract

    In this study, a probabilistic procedure is presented for determination of the mechanical parameters of rock mass around a tunnel accounting for measurement uncertainties. The formulation of the inverse problem allows the incorporation of both the field measurements and prior information. In the method, a non-linear finite element (FE) method for analysing the direct problems of tunnelling in a jointed rock mass with no-tension elastic–plastic behaviour is coupled with the extended Kalman filter (EKF) to modify the geotechnical parameters in a statistical context. The validity of the back-analysis system was demonstrated through a synthetic example of a deep tunnel in a yielding rock mass. The results show the fast convergence and the great potential of the proposed procedure.

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