›› 2008, Vol. 29 ›› Issue (2): 403-408.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Test study on influence of cushion on loading behavior of composite foundations

WANG Bing1,2, YANG Wei-min3, LI Zhan-qiang4, ZHAO Chang-zhou4   

  1. 1.Beijing University of Science and Technology, Beijing 100081, China; 2. Jiwei Highway Engineering Consultation Co. Ltd., Shijiazhuang 030011, China; 3. Institute of Geomechnics, Chinese Academy of Geological Sciences, Beijing 100081, China; 4. Hebei Dadi Civil Engineering Co. Ltd. Shijiazhuang 030011, China
  • Received:2007-03-08 Online:2008-02-11 Published:2013-07-10

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Abstract: The influence of cushion on loading behavior of the composite foundation with compacted soil-cement pile was studied by static loading in-situ. The result of test shows that the thickness and character of the cushion have an important impact on the loading and deformation characteristics of composite foundation. With increasing of the cushion thickness, the loading ratio of the pile is decreasing, but the ratio of the soil is increasing. The pile-soil stress ratio reduces with the increasing of the cushion thickness. On the other hand, the more the character of the cushion is strong, the greater the ability of adjusting deformation, the thinner the cushion thickness. The test result of different thicknesses and two types of cushion shows that the best thickness is of 0.2-0.3 m.

Key words: cushion, composite foundation, loading behaviour, pile-soil stress ratio, compacted soil-cement pile

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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