Dynamic responses of a pile embedded in a layered poroelastic half-space to a harmonic axial loading

Jian-Fei Lu, Bin Xu, Jian-Hua Wang, Dong-Sheng Jeng

    Research output: Contribution to journalArticle

    10 Citations (Scopus)

    Abstract

    The dynamic response of a single pile embedded in a layered poroelastic half-space to an axial harmonic load is investigated in this study. Based on Biot’s theory, the frequency domain fundamental solution for a vertical circular patch load applied in a layered poroelastic half-space is derived via the transmission and reflection matrices method. Utilizing Muki and Sternberg’s method, the second kind of Fredholm integral equations describing the dynamic interaction between the layered half-space and the pile subjected to a harmonic axial load is constructed. The proposed model is validated by comparing a special case of our model with an existing result. Based on numerical results of this paper, it is concluded that the presence of a stiffer or a softer middle layer in the layered half-space will affect the impedance of the pile considerably and the inhomogeneity of the half-space will enhance the pore pressure significantly.
    Original languageEnglish
    Pages (from-to)29-49
    Number of pages21
    JournalActa Mechanica
    Volume207
    DOIs
    Publication statusPublished - 2009

    Keywords

    • Pile
    • Dynamic response
    • Poroelastic
    • Harmonic axial loading

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