›› 2005, Vol. 26 ›› Issue (S1): 69-72.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Load transfer mechanism of cement-flyash-gravel pile in soft clay by high strain testing

JI Peng1, ZHOU Yong-qiang2, LIU Song-yu1, ZHU Xiang-yang2, MA Dong-mei2   

  1. 1. Institute of Geotechnical Engineering, Southeast University, Nanjing 210096, China; 2. Lianyungang Headquarters of Expressway Construction, Lianyungang 222001, China
  • Received:2005-02-02 Published:2005-12-15

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Abstract: Cement-flyash-gravel CFG, piles are found more and more application to soft clay ground improvement in expressway engineering in China. The load transfer mechanism and design calculation theory are conducted empirically in most cases, this resulting in the higher cost compared with other columns. This study focuses on the dynamic method in determining bearing capacity and shaft resistance. The testing site is typically selected in Lianyungang, where the soft marine clay is well known. Finally, the CFG pile design parameters are recommended.

Key words: cement-flyash-gravel pile, Lianyungang marine clay, expressway, high strain testing

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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