›› 2007, Vol. 28 ›› Issue (2): 274-278.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Experimental study on bearing characteristics of dry jet mixing pile composite ground under flexible load

CHEN Shan-xiong1, 2, XU Xi-chang1, ZHAO Wen-guang2   

  1. 1. Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071, China; 2. College of Civil Engineering and Mechanics, Huazhong University of Science and Technology, Wuhan 430074, China
  • Received:2005-11-10 Online:2007-02-10 Published:2013-08-28

Abstract: The bearing characteristics of dry jet mixing pile composite ground are investigated. The stresses on pile and soil and their variation under flexible load have been measured; and pile-soil stress ratio of composite ground with DJM pile under flexible load and its variation with the load have been studied. The investigation indicates that the static loading test curves of composite ground are of gradually varied shape; it is feasible that load corresponding to relative settlement ratio s/b =0.01 is taken as basic bearing capacity value of composite ground according to relative settlement method. Because of running compensation effect of cushion, pile-soil stress ratio n changes comparatively gentle with load. Pile-soil stress ratio n changes about 1.73-6.83; its average value is 3.20.

Key words: flexible load, dry jet mixing pile composite ground, bearing characteristics, experimental study

CLC Number: 

  • TU 411
  • 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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