›› 2004, Vol. 25 ›› Issue (7): 1163-1166.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

In-situ test study on soft soil foundation improvement by dry jet mixing piles (DJMP) combined with quicklime piles

ZHOU Ping1, ZHU Chang-qi1, CHU Bin2   

  1. 1. Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071, China; 2. Henan Provincial Planning and Design Institute of Communications, Zhengzhou 450052, China
  • Received:2003-08-01 Online:2004-07-09 Published:2014-07-18

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Abstract: A soil foundation composed of silt and silty clay needs to be improved in order to get its bearing capacity of composite foundation reaching 180 kPa. A series of in-situ improvement tests on the foundation were carried out by the methods of dry jet mixing piles (DJMP) combined with quicklime piles and DJMP. The results of the tests indicate that it is cheaper and more efficient by the method of DJMP combined with quicklime piles than the method of DJMP and that the composite foundation is to attain higher bearing capacity by process of DJMP carried out before quicklime pile improvement than DJMP carried out after quicklime pile inprovement. The calculation methods of bearing capacity for composite foundation of DJMP combined with quicklime pile are proposed.

Key words: dry jet mixing pile, quicklime pile, combination improvement, soft soil foundation

CLC Number: 

  • TU 44
  • 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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