›› 2006, Vol. 27 ›› Issue (2): 257-260.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

A method for cavity expansion in semi-infinite soil

ZHU Ning, SHI Jian-yong, CHEN Hai-feng   

  1. Institute of Geotechnical Engineering, Hohai University, Nanjing 210098, China
  • Received:2004-10-20 Online:2006-02-10 Published:2013-10-25

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Abstract: In the study of piles jacking in soil, cavity expansion method（CEM）in infinite space is usually used to simulate the expansion of piles. But pile jacking took place in semi-infinite space, the difference of stresses in boundary between semi-infinite space and infinite space should be analyzed. Considered the surface stresses correction of semi-infinite problem and based on existing research, a new elastic method is presented to develop the CEM to satisfy the semi-infinite space by using stress function. Surface stresses can be corrected by using this method. It is proved to be advanced compared with existing methods and can be used for further research.

Key words: piles jacking, cavity expansion, surface stresses, semi-infinite problem, stress function

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.
  • 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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