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  • A new model for the vibration isolation via pile rows consisting of infinite number of piles

    Author(s)
    Lu, Jian-Fei
    Jeng, Dong-Sheng
    Wan, Jian-Wei
    Zhang, Ji-Sheng
    Griffith University Author(s)
    Jeng, Dong-Sheng
    Year published
    2013
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    Abstract
    In this study, on the basis of the Floquet transform method, a numerical model for the simulation of the vibration isolation via multiple periodic pile rows with infinite number of piles is established. By means of the fictitious pile method due to Muki and Sternberg, the second kind of Fredholm integral equations for the pile rows are developed by using the fundamental solutions for the half-space and the compatibility conditions between the piles and half-space. Employing the Floquet transform method, integral equations for the pile rows in the wavenumber domain are then derived. Solution of the integral equations yields ...
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    In this study, on the basis of the Floquet transform method, a numerical model for the simulation of the vibration isolation via multiple periodic pile rows with infinite number of piles is established. By means of the fictitious pile method due to Muki and Sternberg, the second kind of Fredholm integral equations for the pile rows are developed by using the fundamental solutions for the half-space and the compatibility conditions between the piles and half-space. Employing the Floquet transform method, integral equations for the pile rows in the wavenumber domain are then derived. Solution of the integral equations yields the wavenumber domain solution for the pile rows. The space domain solution can then be retrieved by inversion of the Floquet transform. Numerical results show that the proposed model with the Floquet transform method is in a good agreement with those of the conventional direct superposition method. On the basis of the new model, influences of the spacing between neighboring piles, the Young's modulus of the piles, and the pile length on the vibration isolation effect of the pile rows are investigated. Numerical simulations conducted in this study show that compared with the direct superposition method, the efficiency of the proposed model for simulation of the vibration isolation via pile rows is very high.
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    Journal Title
    International Journal for Numerical and Analytical Methods in Geomechanics
    Volume
    37
    DOI
    https://doi.org/10.1002/nag.2141
    Subject
    Civil Geotechnical Engineering
    Civil Engineering
    Publication URI
    http://hdl.handle.net/10072/56369
    Collection
    • Journal articles

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