›› 2009, Vol. 30 ›› Issue (9): 2787-2791.

• Geotechnical Engineering • Previous Articles     Next Articles

Bearing capacity analysis of self-balanced load test pile under the control of limit state and deformation

MA Yuan-gang1, 2, YANG Chun-he1   

  1. 1. State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071, China; 2. Bridge Science Research Institute Co Ltd., China Zhongtie Major Bridge Engineering Group, Wuhan 430034, China
  • Received:2008-12-25 Online:2009-09-10 Published:2010-03-24

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Abstract:

Based on the self-balanced test of S10 pile in the Third Karnaphuli Bridge, the ultimate bearing capacity under extreme event and limit state is analyzed; and it is compared with the bearing capacity controlled by pile deformation. The results are similar between deformation control under structure stress analysis and ultimate bearing capacity under limit state, the limit top settlement for the ultimate bearing capacity should be determined according to the limit state of structure, which is helpful for playing the bearing capacity of super-long pile as long as structure internal force caused by settlement deference can be controlled in design range. The calculation method of determining the pile stiffness is introduced, which is more accurate and useful than traditional one.

Key words: self-balance, deformation, limit state, pile stiffness, bearing capacity

CLC Number: 

  • TU 473
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