›› 2007, Vol. 28 ›› Issue (4): 753-757.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

A semi-analytical method for dynamical analysis of slab and composite foundation

LIU Li-ping1, HUANG Yi2, LI Xiang-yang3   

  1. 1. School of Science, Xi’an University of Architecture and Technology, Xi’an 710055, China; 2. School of Civil Engineering, Xi’an University of Architecture and Technology, Xi’an 710055, China; 3. Department of Geotechnical Engineering, Tongji University, Shanghai 200092, China
  • Received:2005-05-08 Online:2007-04-10 Published:2013-09-05

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Abstract: Composite ground can be regarded as transversely isotropic material. Semi-analytical element method is used to study the dynamic interaction of slab and composite foundation. It can avoid introducing redundant boundary condition compared with FEM, and improve computation accuracy. Furthermore it can simplify 3-dimensional computation to one dimension, saving computation time dramatically for its quick convergence. The dynamic property of slab and composite ground is investigated by means of changing substitution ratio, reinforced depth and modulus ratio of pile to soil. The results indicate that the increment of these factors can affect the amplitude of vibration and increase the system's frequency. So when designing the foundation of power machine, some attention should be paid to the impaction of composite ground on the alteration of dynamic property of ground.

Key words: semi-analytical element method, composite foundation, interaction, dynamic property

CLC Number: 

  • TU 470+.3
  • 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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