›› 2008, Vol. 29 ›› Issue (2): 321-326.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Analytical theory for consolidation of double-layered composite ground with granular columns

SUN Ju, XIE Xin-yu，XIE Kang-he   

  1. Key Laboratory of Soft Soils and Geoenvironmental Engineering of Ministry of Education，Zhejiang University，Hangzhou 310027, China
  • Received:2006-04-29 Online:2008-02-11 Published:2013-07-10

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Abstract: This paper mainly carried out analytical theory for consolidation and its engineering performance of double-layered composite ground with granular columns considering smear effects and stress concentration effects, and discussed possible variational laws considering different cases, also with the common applicability of this analytical theory. Conclusions were made that speed of consolidation depended on drain ratio and horizontal coefficient of permeability and stiffness of pile; draining of bottom did not have efficient influence on consolidation with small drain spacing ratio. whether considering stress concentration effects or not had efficient influence on consolidation.

Key words: granular columns, double-layered composite ground, analytical theory for consolidation, stress concentration effects, smear effects

CLC Number: 

  • TU 435
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