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    Volume 42, Issue 6 (November 2019)

    Study on Visualization and Failure Mode of Model Test of Rock-Socketed Pile in Soft Rock

    (Received 1 October 2017; accepted 1 August 2018)

    Published Online: 16 October 2018

    CODEN: GTJODJ

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    Abstract

    Computed tomography (CT) technology is a kind of nondestructive image reconstruction technology. CT visualization technology is introduced into the physical model test of a single pile, which can visualize a rock-socketed pile in soft rock under different pile top loads. In this article, the visualization process of a model test of a rock-socketed pile in soft rock is carried out by medical CT. The implementation procedure, the composition of the device, and the technical requirements of the test equipment, as well as the CT scanning operation of nondestructive visualization technique of the single pile model test, are introduced in detail. The influence of a marked layer setting, side wall effect, size of the model cylinder, and model pile on the visualization effect of a single pile model test is discussed. The feasibility and reliability of the model test visualization technology of a rock-socketed pile in soft rock are demonstrated by examples, and the failure mode of rock-socketed pile in soft rock is intuitively revealed to be the spherical cavity expansion mode of the pile end.

    Author Information:

    Huang, Bin
    School of Civil Engineering, Wuhan University, Wuhan,

    Zhang, Yuting
    School of Civil Engineering, Wuhan University, Wuhan,

    Fu, Xudong
    School of Civil Engineering, Wuhan University, Wuhan,

    Zhang, Benjiao
    School of Civil Engineering, Wuhan University, Wuhan,


    Stock #: GTJ20170348

    ISSN:0149-6115

    DOI: 10.1520/GTJ20170348

    Author
    Title Study on Visualization and Failure Mode of Model Test of Rock-Socketed Pile in Soft Rock
    Symposium ,
    Committee E41