Hydro-mechanical modelling of MX-80 bentonite: one dimensional study

Ayman A. Abed; Mika Laitinen; Joni Lämsä; Tero Harjupatana; Wojciech T. Sołowski; Markku Kataja

doi:10.1051/e3sconf/20160918005

Hydro-mechanical modelling of MX-80 bentonite: one dimensional study

Ayman A. Abed, Mika Laitinen, Joni Lämsä, Tero Harjupatana, Wojciech T. Sołowski, Markku Kataja

Department of Civil Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review

6 Citations (Scopus)

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Abstract

As a first step towards modelling the coupled Thermo-Hydro-Mechanical-Chemical (THMC) behaviour of bentonite, the Barcelona Basic Model (BBM) has been implemented into Numerrin finite element code. This model has been fully coupled with the single phase flow equation for unsaturated soils which models liquid water transport. Suction obtained from solving the flow equation is used as an input for the BBM model and the volumetric deformations from the mechanical analysis are used to update the pore water pressure field. As an alternative, BBM is used alongside the Kröhn’s model which assumes that bentonite re-saturation is mainly driven by water vapour diffusion. The paper simulates one dimensional infiltration test on MX-80 bentonite with both implemented models for water transport and compares the results with those from a laboratory experiments based on X-ray tomography.The numerical results of the simulations are similar despite taking into account different physical phenomena.

Original language	English
Title of host publication	3rd European Conference on Unsaturated Soils – E-UNSAT 2016
Publisher	EDP Sciences
Number of pages	6
DOIs	https://doi.org/10.1051/e3sconf/20160918005
Publication status	Published - 12 Sept 2016
MoE publication type	A4 Conference publication
Event	European Conference on Unsaturated Soils - École des Ponts ParisTech (ENPC), Paris, France Duration: 12 Sept 2016 → 14 Sept 2016 Conference number: 3 http://eunsat2016.sciencesconf.org/

Publication series

Name	E3S Web of Conferences
Volume	9
ISSN (Electronic)	2267-1242

Conference

Conference	European Conference on Unsaturated Soils
Abbreviated title	E-UNSAT
Country/Territory	France
City	Paris
Period	12/09/2016 → 14/09/2016
Internet address	http://eunsat2016.sciencesconf.org/

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e3sconf_eunsat2016_18005
© The Authors, published by EDP Sciences. This is an open access article distributed under the terms of the Creative Common s Attribution License 4.0 (http://creativecommons.org/licenses/by/4.0/).
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Cite this

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title = "Hydro-mechanical modelling of MX-80 bentonite: one dimensional study",

abstract = "As a first step towards modelling the coupled Thermo-Hydro-Mechanical-Chemical (THMC) behaviour of bentonite, the Barcelona Basic Model (BBM) has been implemented into Numerrin finite element code. This model has been fully coupled with the single phase flow equation for unsaturated soils which models liquid water transport. Suction obtained from solving the flow equation is used as an input for the BBM model and the volumetric deformations from the mechanical analysis are used to update the pore water pressure field. As an alternative, BBM is used alongside the Kr{\"o}hn{\textquoteright}s model which assumes that bentonite re-saturation is mainly driven by water vapour diffusion. The paper simulates one dimensional infiltration test on MX-80 bentonite with both implemented models for water transport and compares the results with those from a laboratory experiments based on X-ray tomography.The numerical results of the simulations are similar despite taking into account different physical phenomena. ",

author = "Abed, {Ayman A.} and Mika Laitinen and Joni L{\"a}ms{\"a} and Tero Harjupatana and So{\l}owski, {Wojciech T.} and Markku Kataja",

year = "2016",

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publisher = "EDP Sciences",

booktitle = "3rd European Conference on Unsaturated Soils – E-UNSAT 2016",

address = "France",

note = "European Conference on Unsaturated Soils, E-UNSAT ; Conference date: 12-09-2016 Through 14-09-2016",

url = "http://eunsat2016.sciencesconf.org/",

}

Abed, AA, Laitinen, M, Lämsä, J, Harjupatana, T, Sołowski, WT & Kataja, M 2016, Hydro-mechanical modelling of MX-80 bentonite: one dimensional study. in 3rd European Conference on Unsaturated Soils – E-UNSAT 2016., 18005, E3S Web of Conferences, vol. 9, EDP Sciences, European Conference on Unsaturated Soils, Paris, France, 12/09/2016. https://doi.org/10.1051/e3sconf/20160918005

Hydro-mechanical modelling of MX-80 bentonite: one dimensional study. / Abed, Ayman A.; Laitinen, Mika; Lämsä, Joni et al.
3rd European Conference on Unsaturated Soils – E-UNSAT 2016. EDP Sciences, 2016. 18005 (E3S Web of Conferences; Vol. 9).

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review

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Hydro-mechanical modelling of MX-80 bentonite: one dimensional study

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