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Structural Engineering and Mechanics
  Volume 20, Number 5, July30 2005, pages 575-587
DOI: http://dx.doi.org/10.12989/sem.2005.20.5.575
 


Nonlinear analysis of interaction between flexible pile group and soil
Jie Liu, Q. S. Li and Zhe Wu

 
Abstract
    Using the nonlinear load transfer function for pile side soil and the linear load transfer function for pile end soil, a combined approach of the incremental load transfer matrix method and the approximate differential equation solution method is presented for the nonlinear analysis of interaction between flexible pile group and soil. The proposed method provides an effective approach for the solution of the nonlinear interaction between flexible pile group under rigid platform and surrounding soil. To verify the accuracy of the proposed method, a static load test for a nine–pile group under a rigid platform is carried out. The finite element analysis is also conducted for comparison purposes. It is found that the results from the proposed method match very well with those from the experimental test and are better in comparison with the finite element method.
 
Key Words
    pile-soil interaction; settlement; load transfer; composite ground.
 
Address
Jie Liu; College of Civil Engineering, Hunan University, Changsha, Hunan 410082, China
Department of Civil Engineering, Zhuzhou Institute of Technology, Zhuzhou, Hunan 412008, China
Q. S. Li; Department of Building and Construction, City University of Hong Kong, Hong Kong
Zhe Wu; Department of Flight Vehicle Design and Applied Mechanics, Beijing University of Aeronautics and Astronautics, Beijing 100083, China
 

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