Axial Response of Viscoelastic Pile-soil Coupling Interaction in Three-dimensional Inhomogeneous Soil
YANG Dong-ying,WANG Kui-hua and DING Hai-ping
DOI:10.11835/j.issn.1674-4764.2011.03.015
Received December 05, 2010,Revised , Accepted , Available online July 01, 2015
Volume ,2011,Pages 80-87
- Abstract
Considering the three-dimensional inhomogeneity of soil surrounding the pile, the response of non-uniform viscoelastic pile under axial dynamic loading is studied. Firstly, combining the boundary condition, the complex stiffness of axial different soil layers are obtained by the complex stiffness transfer model of radial multi-zone plane strain. Then, the analytical solution of dynamic response at pile top in frequency domain is proposed by solving the dynamic equation of non-uniform viscoelastic pile section one by one from the bottom up to the top, and the relevant semi-analytical solution response in time domain is adopted by the convolution theorem and the Inverse Fourier Transform. At last, the effect of parameters of pile and soil are investigated to get the nature of the dynamic response of pile top in frequency domain and time domain.