Evaluation of Excess Pore Pressure in Strain-Softening Soils Induced by Cavity Expansion

Many geotechnical materials such as overconsolidated soil and dense sand have obvious strain-softening and shear dilatant behaviors, which can't be analyzed by Vesic's cavity expansion theory. By using elasto-plastic theory and volume-balance equation, the authors established the analytica...

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Bibliographic Details
Published in:Key engineering materials 2004-01, Vol.274-276, p.129-134
Main Authors: Chen, Long Zhu, Liang, Fa Yun
Format: Article
Language:English
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Summary:Many geotechnical materials such as overconsolidated soil and dense sand have obvious strain-softening and shear dilatant behaviors, which can't be analyzed by Vesic's cavity expansion theory. By using elasto-plastic theory and volume-balance equation, the authors established the analytical solution to cylindrical cavity expansion in strain-softening soil, and the undrained situation of soil was considered. Based on the analytical solution presented by the authors, the excess pore pressure induced by cavity expansion is evaluated using the model forwarded by Henkel. The results have practical significances in the analysis of engineering problems.
ISSN:1013-9826
1662-9795
1662-9795
DOI:10.4028/www.scientific.net/KEM.274-276.129