›› 2003, Vol. 24 ›› Issue (5): 723-728.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Determination of effective length of a common pile in deep overlay soil layers with secant rigidity of pile

ZENG You-jin, ZHANG Wei-min, WANG Nian-xiang, XU Guang-ming   

  1. Nanjing Hydraulic Research Institute，Nanjing 210024, China
  • Received:2002-06-26 Online:2003-10-10 Published:2014-08-19

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Abstract: The control method of secant rigidity of pile is put forward in order to determine effective length of pile based on the definition of effective length of foundation pile brought forward. It is applied to determine effective length of a common pile in deep overlay soil layers with linearly elastoplastic load transfer function. Influential factors of effective length such as coefficient of rigidity of pile, pile’s diameter, top settlement of pile, side ultimate displacement, elastic modulus ratio of the bottom soil and surrounding soil and Poisson’s ratio, are thoroughly analyzed. The results show that the factors have certain effects on effective length of the common pile except elastic modulus ratio of the bottom soil and surrounding soil, and Poisson’s ratio. In order to apply to practical project, it is studied how to confirm parameters in the project.

Key words: effective length, secant rigidity, load transfer, super-long pile

CLC Number: 

  • TU 473
  • Please send e-mail to pingzhou3@126.com if you would like to read full paper in English for free. Parts of our published papers have English translations.
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