There is no engineering experience for metro station construction by the PBA (Pile-Beam-Arch) method to enlarge an existing large-size shield tunnel in China. During enlarging construction by the PBA method, the spatial mechanical and deformational characteristics of metro station structure are still not clear. In this paper, the Gaojiayuan station is taken as an engineering background to study the spatial mechanical and deformational characteristics during enlarging construction by the PBA method. Based on soil-structure interaction theory, a three-dimensional finite element model is built to simulate the enlarging construction by the PBA method. The three-dimensional numerical results can be regarded as a valuable reference for enlarging construction by the PBA method in Beijing metro line 14.


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    Title :

    3D Numerical Analysis of Metro Station by PBA Method to Enlarge Existing Large-Size Shield Tunnel


    Contributors:
    Yan, Mei (author) / Ding, De-Yun (author) / Yang, Xiu-Ren (author) / Lu, Wei-Dong (author) / Liu, Wei-Ning (author) / Li, Ai-min (author)


    Publication date :

    2012


    Size :

    6 Seiten




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English





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