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dc.contributor.authorCuadrado Cabello, Agustín
dc.contributor.authorNajdi, Abdallah
dc.contributor.authorLedesma Villalba, Alberto
dc.contributor.authorOlivella Pastallé, Sebastià
dc.contributor.authorPrat Catalán, Pere
dc.contributor.otherUniversitat Politècnica de Catalunya. Doctorat en Enginyeria del Terreny
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament d'Enginyeria Civil i Ambiental
dc.date.accessioned2021-11-09T19:14:47Z
dc.date.available2021-11-09T19:14:47Z
dc.date.issued2022-01
dc.identifier.citationCuadrado, A. [et al.]. THM analysis of a soil drying test in an environmental chamber: the role of boundary conditions. "Computers and geotechnics", 2022, vol. 141, p. 104495:1-104495:15.
dc.identifier.issn0266-352X
dc.identifier.urihttp://hdl.handle.net/2117/355925
dc.description.abstractThis paper presents the numerical analysis of an experimental soil drying test carried on an initially slurry soil specimen with controlled temperature and relative humidity in a laboratory environmental chamber. The imposed drying conditions lead to evaporation and a consequent soil shrinkage, triggering a perimeter crack between soil body and mould. The numerical analysis follows a THM approach with two objectives: to identify the soil parameters that govern drying, and to determine the influence of the perimeter crack on evaporation. Identifying the boundary condition requires defining the vapour and heat fluxes, the corresponding transfer coefficients, and the influence of the perimeter crack. The simulations are provided in 3 separate blocks with gradually added complexity until a good fit with the experimental data is obtained. The approach signifies the importance of accounting for the mechanical problem, the initial self-weight settlements of the slurry, the wind effect in the chamber and the evaporation from the exposed crack surface. The local atmosphere within the formed crack, however, differs from the surface, requiring the use of different vapour transfer coefficients at the distinct surfaces. The simulations were assessed based on the ability to reproduce the water loss, developing suction profile and soil relative humidity.
dc.description.sponsorshipThe authors would like to acknowledge the financial support from research grants BIA2012-36498 and BIA2017-82594-R, awarded by the Spanish Ministry of Economy and Competitiveness, and the Spanish Ministry of Science, Education and Universities, respectively (both including FEDER funds, European Commission). The authors want also to thank the people at LabFerrer for their cooperation in this research, and for providing free use of the anemometer for the environmental chamber test.
dc.language.isoeng
dc.publisherElsevier
dc.subjectÀrees temàtiques de la UPC::Enginyeria civil::Geotècnia::Mecànica de sòls
dc.subject.lcshSoil mechanics
dc.subject.otherDesiccating cracks
dc.subject.otherTHM analysis
dc.subject.otherEnvironmental chamber
dc.subject.otherUnsaturated soils
dc.subject.otherSuction
dc.titleTHM analysis of a soil drying test in an environmental chamber: the role of boundary conditions
dc.typeArticle
dc.subject.lemacMecànica dels sòls
dc.contributor.groupUniversitat Politècnica de Catalunya. MSR - Mecànica del Sòls i de les Roques
dc.contributor.groupUniversitat Politècnica de Catalunya. MECMAT - Mecànica de Materials
dc.identifier.doi10.1016/j.compgeo.2021.104495
dc.description.peerreviewedPeer Reviewed
dc.relation.publisherversionhttps://www.sciencedirect.com/science/article/pii/S0266352X2100478X
dc.rights.accessOpen Access
local.identifier.drac32136231
dc.description.versionPostprint (published version)
dc.relation.projectidinfo:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/BIA2017-82594-R/ES/DETERIORO FISICO DEL SUELO DEBIDO A ACCIONES AMBIENTALES: SOLUCIONES TECNOLOGICAS PARA MITIGACION DE RIESGOS/
dc.relation.projectidinfo:eu-repo/grantAgreement/MINECO/1PE/BIA2012-36498
local.citation.authorCuadrado, A.; Najdi, A.; Ledesma, A.; Olivella, S.; Prat, P.
local.citation.publicationNameComputers and geotechnics
local.citation.volume141
local.citation.startingPage104495:1
local.citation.endingPage104495:15


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