›› 2010, Vol. 31 ›› Issue (1): 92-98.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Study of longitudinal vibrations of pile in saturated soil based on layer method

LIU Lin-chao1，YANG Xiao2   

  1. 1. School of Civil Engineering, Xinyang Normal University, Xinyang 464000, China; 2. Department of Civil Engineering, Shanghai University, Shanghai 200072, China
  • Received:2008-06-16 Online:2010-01-10 Published:2010-02-02

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Abstract:

Based on porous medium theory, the longitudinal coupled vibrations of saturated soil-pile is investigated with layer method by regarding soil around of the pile as saturated porous medium. A comparative analysis between the results of the three-dimensional model and Novak layer method is carried out; and validity of the results is shown. The influences of main mechanical parameters of pile and soil on dynamic behaviors of coupled system is analyzed; the results indicate that the length-diameter ratio and modulus ratio of pile and soil have a great effect on dynamic behaviors of the pile in saturated soil; while the influences of damping coefficient and coupling coefficient are smaller.

Key words: porous medium, saturated soil, longitudinal vibrations, dynamic impedance, layer method

CLC Number: 

  • TU 435
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