| Title: | A coupled thermo-hydro-mechanical model of expansive clays subjected to heating and hydratation |
|---|
| Authors: | ID Laredj, Nadia (Author)
ID Missoum, Hanifi (Author)
ID Bendani, Karim (Author)
ID Maliki, Mustapha (Author)
ID Fakulteta za gradbeništvo, prometno inženirstvo in arhitekturo Univerze v Mariboru (Copyright holder) |
|---|
| Files: |  Acta_geotechnica_Slovenica_2011_Laredj_et_al._A_coupled_thermo-hydro-mechanical_model_of_expansive_clays_subjected_to_heating_and_hydrat.pdf (389,48 KB)
MD5: BDBA1C1477D6AE3F27E2564CA2784317
PID: 20.500.12556/dkum/fc82ada3-e65d-4ef0-8b0f-1b961de424f0
 http://fgserver3.fg.um.si/journal-ags/2011-1/article-3.asp
|
|---|
| Language: | English |
|---|
| Work type: | Scientific work |
|---|
| Typology: | 1.01 - Original Scientific Article |
|---|
| Organization: | FGPA - Faculty of Civil Engineering, Transportation Engineering and Architecture
|
|---|
| Abstract: | The focus of this work is to provide a numerical formulation for coupled thermo-hydro-mechanical processes in unsaturated expansive clays, especially in compacted bentonite, with a multiphase fluid flow. The model is characterized by the presence of a deformable solid matrix filled with two fluid phases (liquid water and air). In the proposed model, both pore-water and air transfers are assumed to be governed by the generalized Darcy’s law. Fully coupled, nonlinear partial differential equations are established and then solved by using a Galerkin weighted residual approach in the space domain and an implicit integrating scheme in the time domain. The model has been validated against an experimental test from the literature, which involves bentonite under laboratory conditions. The calculated relative errors between the experimental and numerical results are 3% for the temperature and 7% for the stresses. Consequently, the developed numerical model predicts satisfactory results, when compared to the experimental test measures. The model is applicable to two-dimensional problems with various initial and boundary conditions; non linear soil parameters can be easily included in this model. |
|---|
| Keywords: | thermo-hydro-mechanical process, unsaturated bentonite, finite element, numerical modelling, expansive clays |
|---|
| Publication status: | Published |
|---|
| Publication version: | Version of Record |
|---|
| Year of publishing: | 2011 |
|---|
| Number of pages: | str. 29-37 |
|---|
| Numbering: | Letn. 8, št. 1 |
|---|
| PID: | 20.500.12556/DKUM-70758  |
|---|
| ISSN: | 1854-0171 |
|---|
| UDC: | 666.322 |
|---|
| ISSN on article: | 1854-0171 |
|---|
| COBISS.SI-ID: | 262512384 |
|---|
| NUK URN: | URN:SI:UM:DK:OGPTZ4ZJ |
|---|
| Copyright: | Fakulteta za gradbeništvo, prometno inženirstvo in arhitekturo Univerze v Mariboru |
|---|
| Publication date in DKUM: | 13.06.2018 |
|---|
| Views: | 1313 |
|---|
| Downloads: | 93 |
|---|
| Metadata: |    |
|---|
| Categories: | Misc.
|
|---|
|
:
|
Copy citation |
|---|
| | | | Average score: | (0 votes) |
|---|
| Your score: | Voting is allowed only for logged in users. |
|---|
| Share: |  |
|---|
Hover the mouse pointer over a document title to show the abstract or click
on the title to get all document metadata. |
