›› 2008, Vol. 29 ›› Issue (2): 449-454.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Effects on soil plugging and plugged mode in open-ended pile

LI Jian-qiang1,2, 1   

  1. 1. Institute of Geotechnical Engineering, Zhejiang University, Zhejiang University, Hangzhou 310027, China 2. Zhejiang Design Institute of Water Conservancy & Hydroelectric Power, Hangzhou, 310012, China; Institute of Geotechnical Engineering Institute,
  • Received:2006-06-19 Online:2008-02-11 Published:2013-07-10

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Abstract: During pile driving soil adjacent to pile tip comes into the tubular pile thus formed soil plug. The effect of soil plug on the bearing capacity of large-diameter steel pipe pile and new developed large-diameter cast-in-situ tubular pile can not be neglected. Through soil plugging the bearing capacity of open-ended pile will be increased and its settlement decreased. Two different definition of soil plugging were compared, and through which the definition based on the failure mechanism was verified to be more reasonable. Different effects, such as pile diameter, inner friction, vertical bearing capacity of the underlain soils and the lateral stress level, were studied. ICP discriminant of plugging mode for both clay and sand was discussed. This method was proved to be a simple one and cannot embody the real plugging in practice.

Key words: soil plug, plugging, failure mechanism of soil plug

CLC Number: 

  • TU473.
  • 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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