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Geomechanics and Engineering
  Volume 19, Number 6, December30 2019 , pages 513-522
DOI: https://doi.org/10.12989/gae.2019.19.6.513
 


Elasto-plastic solution for cavity expansion problem in anisotropic and drained soil mass
Chao Li, Jin-feng Zou and Liang Li

 
Abstract
    This study presents an elasto-plastic (EP) solution for drained cavity expansion on the basis of unified strength failure criterion and considers the influence of initial stress state. Because of the influence of initial consolidation of soil mass, the initial stress may be anisotropic in the natural soil mass. In addition, the undrained hypothesis is usually used in the calculation of cavity expansion problem, but most of the cases are in the drained situation in practical engineering. Eventually, the published solution and the presented solution are compared to verify the suitability of the study.
 
Key Words
    elasto-plastic solution; drained cavity expansion; unified strength failure criterion; initial stress state
 
Address
Chao Li, Jin-feng Zou and Liang Li: School of Civil Engineering, Central South University, Hunan 410075, China
 

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