Imperial College London
Alternate

DR KATERINA TSIAMPOUSI

Faculty of Engineering, Department of Civil and Environmental Engineering

Senior Lecturer
 
 
 
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Contact

 

+44 (0)20 7594 6020aikaterini.tsiampousi05

 
 
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Assistant

 

Ms Sue Feller +44 (0)20 7594 6077

 
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Location

 

440ASkempton BuildingSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@inproceedings{Ghiadistri:2019:e3sconf/20199215002,
author = {Ghiadistri, G and Zdravkovi, L and Potts, DM and Tsiampousi, A},
doi = {e3sconf/20199215002},
pages = {1--6},
publisher = {EDP Sciences},
title = {Calibration of a double structure constitutive model for unsaturated compacted soils},
url = {http://dx.doi.org/10.1051/e3sconf/20199215002},
year = {2019}
}
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RIS format (EndNote, RefMan)

TY  - CPAPER
AB  - This paper describes a calibration procedure for the double structure constitutive model ICDSM (Imperial College Double Structure Model), developed for highly expansive clays, when the model is applied to MX-80 bentonite. Firstly, the model calibration process is discussed and organised in a number of hierarchical steps. These steps involve the estimation of the macrostructural parameters that can be derived from oedometer, isotropic and triaxial laboratory data. Estimation of the microstructural parameters is more challenging due to the limited knowledge of an expansive clay’s fabric and of the physico-chemical phenomena that control its evolution upon wetting. Nevertheless, this paper discusses the available sources of data and identifies the appropriate information that is needed to characterise the micro-structural behaviour of the bentonite. Finally, through the simulation of a swelling pressure test on a bentonite plug, the hydration of the material is studied as a hydro-mechanical coupled process. Particular attention is devoted to the evolution of the stress state of the sample, which is compared to the experimental measurements in order to demonstrate that the constitutive model accurately reproduces the expansive behaviour of MX-80 bentonite.
AU  - Ghiadistri,G
AU  - Zdravkovi,L
AU  - Potts,DM
AU  - Tsiampousi,A
DO  - e3sconf/20199215002
EP  - 6
PB  - EDP Sciences
PY  - 2019///
SP  - 1
TI  - Calibration of a double structure constitutive model for unsaturated compacted soils
UR  - http://dx.doi.org/10.1051/e3sconf/20199215002
UR  - https://www.e3s-conferences.org/articles/e3sconf/abs/2019/18/e3sconf_isg2019_15002/e3sconf_isg2019_15002.html
UR  - http://hdl.handle.net/10044/1/75576
ER  -
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