›› 2005, Vol. 26 ›› Issue (S1): 244-247.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Methods for calculating time-dependent ultimate bearing capacity of single pile

WANG Wei1,2, LU Ting-hao1, ZAI Jin-min2   

  1. 1. Research Institute of Geotechnical Engineering, Hohai University, Nanjing 210098, China; 2. Institute of Geotechnical Engineering, Nanjing University of Technology, Nanjing 210009, China
  • Received:2005-01-22 Published:2005-12-15

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Abstract: The ultimate bearing capacity of single pile increases with time after pile installation, and it is of great importance to foundation design. Although several methods have been established to study this time-dependent ultimate bearing capacity of single pile, they have different occasions for application, and the deduced results of them may differ greatly. Firstly，the methods for determining time-dependency of single pile are summarized. Four typical types of methods namely: (1) empirical method using logarithm function; (2) empirical method using hyperbolic function; (3) soft method using artificial neural networks; (4) analytical method using consolidation theory, are analyzed in detail. Secondly, three criteria namely: (1) simplicity and parameters physical meaning; (2) theoretical meaning; (3) general applicability; are used to appraise the methods by two case studies. Finally, analytical method using consolidation theory, established by authors, is suggested to be basic method to estimate time-dependent ultimate bearing capacity of single pile.

Key words: driven pile, ultimate bearing capacity, time effect, calculating method, consolidation theory

CLC Number: 

  • TU 473.11
  • 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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