Dynamic response of a laterally loaded fixed-head pile group in a transversely isotropic multilayered half-space

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• 作者：Zhi Yong Ai ; ^{zhiyongai@tongji.edu.cn" class="auth_mail" title="E-mail the corresponding author} ; Zhi Xiong Li ; Li Hua Wang
• 关键词：Lateral time-harmonic load ; Fixed-head pile group ; Transverse isotropy ; Multilayered half-space ; FEM-BEM coupling
• 刊名：Journal of Sound and Vibration
• 出版年：2016
• 出版时间：22 December 2016
• 年：2016
• 卷：385
• 期：Complete
• 页码：171-183
• 全文大小：1420 K

文摘

The time-harmonic response of a laterally loaded fixed-head pile group embedded in a transversely isotropic multilayered half-space is investigated using a finite element and indirect boundary element coupling method. The piles are solved by the finite element method (FEM), while the soil can be modeled by the indirect boundary element method (BEM) with the aid of the fundamental solution for a transversely isotropic multilayered half-space in a cylindrical coordinate system. The governing equation of the pile-soil-pile dynamic interaction is established by applying the FEM-BEM coupling method. Numerical examples are carried out to validate the presented theory and to investigate influences of the soil׳s anisotropy and layering on the dynamic response of pile groups.