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A simplified approach for negative skin friction calculation of special-shaped pile considering pile-soil interaction under surcharge

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Abstract

A simplified approach was proposed to analyze the negative skin friction calculation of special-shaped pile considering pile-soil interaction under surcharge. Based on the concentric cylinder shearing theory, considering the changes of pile shape (such as, taper angle and diameters of pile base, etc.), the load-transfer of special-shaped pile was built. The accuracy of the developed simplified approach was verified by numerical simulation model with the same condition. Then, the influence factors, such as, taper angles, the diameter of pile base, surcharge, and pile-soil interface parameters were analyzed and discussed. The results show that the developed simplified approach can calculate NSF of special-shaped pile under surcharge effectively. A limited parametric study indicates that in many practical situations special-shaped piles (such as belled wedge pile shown in this work) offer a design option that is more economical than traditional uniform cross-section piles.

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Authors and Affiliations

  1. College of Civil and Transportation Engineering, Hohai University, Nanjing, 210098, China

    Gang-qiang Kong  (孔纲强), Hang Zhou  (周航), Han-long Liu  (刘汉龙) & Xuan-ming Ding  (丁选明)

  2. Department of Civil Engineering, The University of Akron, Akron, Ohio, 44325, USA

    Robert Liang

Authors
  1. Gang-qiang Kong  (孔纲强)
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  2. Hang Zhou  (周航)
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  3. Han-long Liu  (刘汉龙)
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  4. Xuan-ming Ding  (丁选明)
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  5. Robert Liang
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Corresponding author

Correspondence to Gang-qiang Kong  (孔纲强).

Additional information

Foundation item: Projects(51278170, U1134207) supported by the National Natural Science Foundation of China; Project(B13024) supported by the Program of Introducing Talents of Discipline to Universities, China

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Kong, Gq., Zhou, H., Liu, Hl. et al. A simplified approach for negative skin friction calculation of special-shaped pile considering pile-soil interaction under surcharge. J. Cent. South Univ. 21, 3648–3655 (2014). https://doi.org/10.1007/s11771-014-2347-z

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  • DOI: https://doi.org/10.1007/s11771-014-2347-z

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