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

@article{Cui:2020:10.1061/(ASCE)GT.1943-5606.0002218,
author = {Cui, W and Tsiampousi, A and Potts, D and Gawecka, K and Zdravkovic, L},
doi = {10.1061/(ASCE)GT.1943-5606.0002218},
journal = {Journal of Geotechnical and Geoenvironmental Engineering - ASCE},
pages = {04020007--1--04020007--15},
title = {Numerical modelling of time-dependent thermally induced excess pore fluid pressures in a saturated soil},
url = {http://dx.doi.org/10.1061/(ASCE)GT.1943-5606.0002218},
volume = {146},
year = {2020}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - A temperature rise in soils is usually accompanied by an increase in excess pore fluid pressure due to the differential thermal expansion coefficients of the pore fluid and the soil particles. To model the transient behaviour of this thermally induced excess pore fluid pressure in geotechnical problems, a coupled THM formulation was employed in this study, which accounts for the non-linear temperature-dependent behaviour of both the soil permeability and the thermal expansion coefficient of the pore fluid. Numerical analyses of validation exercises (where there is an analytical solution), as well as of existing triaxial and centrifuge heating tests on Kaolin clay, were carried out in the current paper. The obtained numerical results exhibited good agreement with the analytical solution and experimental measurements respectively, demonstrating good capabilities of the applied numerical facilities and providing insight into the mechanism behind the observed evolution of the thermally induced pore fluid pressure. The numerical results further highlighted the importance of accounting for the temperature-dependent nature of the soil permeability and the thermal expansion coefficient of the pore fluid, commonly ignored in geotechnical numerical analysis.
AU  - Cui,W
AU  - Tsiampousi,A
AU  - Potts,D
AU  - Gawecka,K
AU  - Zdravkovic,L
DO  - 10.1061/(ASCE)GT.1943-5606.0002218
EP  - 1
PY  - 2020///
SN  - 0733-9410
SP  - 04020007
TI  - Numerical modelling of time-dependent thermally induced excess pore fluid pressures in a saturated soil
T2  - Journal of Geotechnical and Geoenvironmental Engineering - ASCE
UR  - http://dx.doi.org/10.1061/(ASCE)GT.1943-5606.0002218
UR  - https://ascelibrary.org/doi/10.1061/%28ASCE%29GT.1943-5606.0002218
UR  - http://hdl.handle.net/10044/1/74843
VL  - 146
ER  -
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