›› 2007, Vol. 28 ›› Issue (5): 877-882.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Engineering characteristics of composite foundation with rigid-flexible and long-short piles

XIE Xin-yu1, YANG Xiang-ru1, SHI Shang-wei1, 2, ZHU Xiang-rong1, 3   

  1. 1. Institute of Geotechnical Engineering, Zhejiang University, Hangzhou 310027, China; 2. Zhejiang Chengjian Building Design Institute, Hangzhou 310003, China; 3.Ningbo Institute of Technology, Zhejiang University , Ningbo 315100, China
  • Received:2005-07-11 Online:2007-05-10 Published:2013-09-10

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Abstract: The engineering characteristics of composite foundation with rigid-flexible and long-short piles are studied. By using the finite element method, the effects of cushion modulus, cushion thickness, short pile modulus, and long pile length on the total settlement of composite foundation, the stress ratio of long-short pile, and the axial stress of long-short pile are discussed respectively. The results show that the engineering characteristics of composite foundation can become more reasonable by optimizing material parameters; and long pile can effectively reduce settlement of composite foundation. Based on the in-situ measurement of pressures in soil and piles of a practical engineering in Wenzhou City, stress ratio of pile to soil and pressures in the process of construction are analyzed. Some conclusions are provided as references for future design and application of this kind of composite foundation.

Key words: composite foundation with rigid-flexible and long-short piles, finite element, settlement, stress ratio of pile to soil

CLC Number: 

  • TU 472.5
  • 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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