›› 2007, Vol. 28 ›› Issue (4): 733-737.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Torsional vibrations of a rigid cylindrical foundation partially embedded in transversely isotropic saturated soil

WU Da-zhi1,2，DONG Tian-le3，CAI Yuan-qiang2，LIU Fei-yu2   

  1. 1. Department of Civil Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, China; 2. Department of Civil Engineering, Zhejiang University, Hangzhou 310027, China; 3. Hangzhou Qiangjiang New City Construction Headquarters, Hangzhou 3110016, China
  • Received:2005-05-13 Online:2007-04-10 Published:2013-09-05

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Abstract: Considering the interactions between the embedded foundation and the soil, the torsional vibrations of a rigid cylindrical foundation partially embedded in transversely isotropic saturated soil are analysed. Assuming both the side face and bottom surface of the foundation are perfectly bonded to the soil, the reaction torques that the side soil and bottom soil acted on the foundation are gotten from basic dynamic equations of the poroelastic medium. According to the dynamic equilibrium equations of a foundation subjected to harmonic torque, the torsional vibrations of an embedded cylindrical foundation are presented. Subsequently, the angular amplitude of the foundation, the equivalent stiffness and damping coefficients of the soil are expressed explicitly. Selected examples are presented to investigate the influence of relevant parameters on the results.

Key words: embedded foundation, transversely isotropic, saturated soil, rigid cylindrical foundation, torsional vibration

CLC Number: 

  • TU 435
  • 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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