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J4  2012, Vol. 46 Issue (3): 402-408    DOI: 10.3785/j.issn.1008-973X.2012.03.004
Influence of sediment characteristics on dynamic response
at  top of rock-socketed pile
WANG Kui-hua1, WU Wen-bing1,2, MA Shao-jun1, MA Bo-ning1
1. MOE Key Laboratory of Soft Soils and Geoenvironmental Engineering, Zhejiang University, Hangzhou 310058, China;
2. Engineering Faculty, China University of Geosciences, Wuhan 430074, China
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 Based on virtual soil pile model, the influence of sediment characteristics on the dynamic response of rock-socketed pile in layered soil was presented by means of Laplace integral transform technique and impedance function transfer method when the top of rock-socketed pile was undergoing arbitrary longitudinal exciting force. The sediment was modeled as virtual soil pile model whose cross-section area was same as the pile and the surrounding layered soils were described with the plane strain model. By using the initial conditions and boundary conditions of the soil-pile system, the analytical solutions for the longitudinal dynamic response of the pile top in frequency domain and the relevant semi-analytical solutions in time domain were obtained at condition of arbitrary excitation on the pile top. Based on the presented solutions, the influence of sediment characteristics on the dynamic response at the pile top was investigated. By using the parametric inversion method, it is proved that these solutions based on virtual soil pile model have sufficient accuracy for the theoretical curves were in good agreement with those obtained by the low-strain reflected wave method from the field measurement.

Published: 01 March 2012
  TU 432  
Cite this article:

WANG Kui-hua, WU Wen-bing, MA Shao-jun, MA Bo-ning. Influence of sediment characteristics on dynamic response
at  top of rock-socketed pile. J4, 2012, 46(3): 402-408.

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