Imperial College London
Professor David Potts

Professor David Potts

Faculty of Engineering, Department of Civil and Environmental Engineering

Senior Research Investigator
 
 
 
//

Contact

 

d.potts

 
 
//

Location

 

505Skempton BuildingSouth Kensington Campus

//

Summary

 

Publications

Citation

BibTex format

@inproceedings{Tsiampousi:2009,
author = {Tsiampousi, A and Zdravkovic, L and Potts, DM},
pages = {673--678},
publisher = {CRC Press},
title = {Modelling of overconsolidated unsaturated soils},
url = {https://www.crcpress.com/Unsaturated-Soils-Two-Volume-Set-Experimental-Studies-in-Unsaturated-Soils/Buzzi-Fityus-Sheng/p/book/9780415804806#googlePreviewContainer},
year = {2009}
}
Download

RIS format (EndNote, RefMan)

TY  - CPAPER
AB  - Constitutive  models  for  unsaturated  soils  are  most  commonly  based  on  conventional  critical  state  type  models  for  saturated  soils.  The  effect  of  partial  saturation  is  taken  into  account  through  the  intro-duction of an additional stress variable which depends on soil suction. The modified Cam-Clay surface is usu-ally assumed for the formulation of the yield and the plastic potential surfaces in the mean stress – deviatoric stress space. In this paper an existing model for unsaturated soils is used to simulate drained triaxial tests per-formed  on  highly  overconsolidated  unsaturated  silt.  Even  though  the  model  adopts  an  improved  expression  for the yield surface that allows a variety of shapes to be introduced, none of them can accurately simulate the observed  soil  behaviour  in  the  laboratory  tests.  A  new  version  of  the  model  is,  therefore,  proposed  and  pre-sented  here.  Following  the  formulation  and  implementation  of  these  alterations,  analyses  of  laboratory  ex-periments on artificial silt are presented demonstrating the improved simulation of soil behaviour.
AU  - Tsiampousi,A
AU  - Zdravkovic,L
AU  - Potts,DM
EP  - 678
PB  - CRC Press
PY  - 2009///
SP  - 673
TI  - Modelling of overconsolidated unsaturated soils
UR  - https://www.crcpress.com/Unsaturated-Soils-Two-Volume-Set-Experimental-Studies-in-Unsaturated-Soils/Buzzi-Fityus-Sheng/p/book/9780415804806#googlePreviewContainer
ER  -
Download