RESEARCH ARTICLE


Application of Cavity Expansion Theory in Predicting Centrifuge Cone Penetration Resistance



M.W. Gui 1, D.S. Jeng *, 2
1 Department of Civil Engineering, National Taipei University of Technology, Taipei 106, Taiwan
2 Division of Civil Engineering, University of Dundee, Dundee, Scotland, UK


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Creative Commons License
© 2009 Gui and Jeng.

open-access license: This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International Public License (CC-BY 4.0), a copy of which is available at: https://creativecommons.org/licenses/by/4.0/legalcode. This license permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

* Address correspondence to this author at the Department of Civil Engineering, National Taipei University of Technology, Taipei 106, Taiwan; Tel: +886 955154891; Fax: +886 227814518; E-mail: mwgui@ntut.edu.tw and Division of Civil Engineering, University of Dundee, Dundee, Scotland, UK; Tel: +441382386141; Fax: +441382385816; E-mail: d.jeng@dundee.ac.uk


Abstract

In this paper, a simple model for the prediction of centrifuge cone penetration tip resistance in sand is presented. The proposed method, which relates the tip resistance to the pressure to expand a spherical cavity, refines and simplifies Greeuw’s original equations. The method assumed the failure mode of a spherical cavity expansion pressure given as a function of shear stiffness, angle of friction and compressibility of the soil. The proposed method provides a better prediction of tip resistance by taking into account soil compressibility and the decrease of angle of friction with increasing mean normal stress. The proposed approach is verified via the comparison of the predicted results with the results from a series of centrifuge cone penetration tests.