Cylindrical cavity expansion from a finite radius

Haiying Huang, Emmanuel Detournay

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Scopus citations

Abstract

Solutions of cavity expansion have many practical applications in geotechnical engineering. In the large body of literature on the cavity expansion models for cohesive frictional materials, the solutions have mostly been derived by adopting a finite logarithmic strain definition in the plastic zone. A more rigorous alternative approach using the rate formulation for cylindrical cavity expansion from a finite radius is presented in this paper. The material is assumed to behave as elasto-perfectly plastic, obeying a Mohr-Coulomb yield criterion and the associated or nonassociated flow rule. The "time" (or evolution) variable is chosen to be the current cavity radius. The solution for the onset of plasticity serve as both the continuity condition for the elastoplastic interface and the initial condition for cavity expansion. The pressure-expansion relationship obtained is a first order ordinary differential equation and converges to a self-similar solution for expansion at a large radius.

Original languageEnglish (US)
Title of host publicationDeep Foundations and Geotechnical In Situ Testing - Proceedings of the 2010 GeoShanghai International Conference
Pages375-383
Number of pages9
Edition205 GSP
DOIs
StatePublished - Sep 6 2010
Event2010 GeoShanghai International Conference - Deep Foundations and Geotechnical In Situ Testing - Shanghai, China
Duration: Jun 3 2010Jun 5 2010

Publication series

NameGeotechnical Special Publication
Number205 GSP
ISSN (Print)0895-0563

Other

Other2010 GeoShanghai International Conference - Deep Foundations and Geotechnical In Situ Testing
CountryChina
CityShanghai
Period6/3/106/5/10

Keywords

  • Cavitation
  • Driven piles
  • In situ tests
  • Load bearing capacity

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