›› 2008, Vol. 29 ›› Issue (5): 1320-1324.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Influence of stone columns design parameters on anti-liquefaction nature of composite foundation

ZHANG Yan-mei1, ZHANG Hong-ru2   

  1. 1. College of Architecture & Storage Engineering, China University of Petroleum (Huadong), Dongying 257061, China; 2. School of Civil Engineering, Beijing Jiaotong University, Beijing 100044, China
  • Received:2007-07-05 Online:2008-05-10 Published:2013-07-24

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Abstract: Stone columns composite foundation is analyzed by the developed fully coupled three-dimension effective-stress dynamic analysis procedure; the influence of stone columns design parameter on anti-liquefaction nature of composite foundation is discussed. The research shows that the influence of column length is minor in superficial layer and is major in deep level; under other condition fixed, with the diameter of stone columns increasing, the excess pore water pressure decreases; with the spacing of columns increasing, the excess pore water pressure increases. In engineering design, the ratio of the diameter and spacing of columns should be bigger than 0.27, or the spacing of columns is smaller than 3.75D; with the permeability of stone columns increasing, the excess pore water pressure in different depths decreases; and the influence is stronger with the depth increasing.

Key words: stone columns composite foundation, dynamic analysis, excess pore water pressure, liquefaction

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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