›› 2006, Vol. 27 ›› Issue (S1): 1017-1020.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Model testing study on composite foundation of cement-soil pile under cyclic loading

BAI Shun-guo1, HOU Yong-feng2, ZHANG Hong-ru2, LI Zhi-qiang2   

  1. 1. College of Urban and Rural Conatruction, Agricultural University of Hebei, Baoding 071001, China; 2. College of Civil Engineering, Beijing Jiaotong University, Beijing 100044, China
  • Received:2006-04-16 Published:2006-12-15

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Abstract: Model tests on composite foundation of cement-soil pile under cyclic loading were conducted. The vertical additional pressure, stress ratio of pile and soil, the pore water pressure, and the settlement of composite foundation of cement-soil pile, etc. were discussed. The test results show that (1) the saturated soft foundation improved with cement-soil piles occurred redistribution of stresses; (2) the effects of cyclic stress ratio, number of loading cycle and replacement ratio on the stress ratio of pile to soil of composite foundation were remarkable; (3) the saturated soft foundation improved with cement-soil piles decreased the pore water pressure value and the settlement of back work; (4) the vertical deformation of the top of piles and pile-surrounding soil is not coordinative. The permanent settlement of the pile top piles is less than that of pile-surrounding soil; and this tendency is more remarkable with increasing number of loading cycle.

Key words: cyclic loading, model test, composite foundation, vertical additional pressure, stress ratio of pile to soil, pore water pressure

CLC Number: 

  • TU 47
  • 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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