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dc.contributor.authorOlivella Pastallé, Sebastià
dc.contributor.authorAlonso Pérez de Agreda, Eduardo
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament d'Enginyeria del Terreny, Cartogràfica i Geofísica
dc.identifier.citationOlivella Pastallé, Sebastià; Alonso, Eduardo. Gas flow through clay barriers. "Géotechnique", 2008, vol. 58, núm. 3, p. 157-176.
dc.description"Geotechnical Research Medal" de la Institution of Civil Engineers (London)
dc.description.abstractA model for the simulation of gas flow in clayey rocks and clays is described. Gas migration is associated with the development of preferential paths along existing or pressure-dependent discontinuities. The model handles the combined phenomena of two-phase (air and liquid) flow and the generation of discrete paths. Aperture of discrete paths is the main variable to account for permeability and capillary pressure variations. The model, which has been implemented in a general thermo-hydromechanical code, is used to simulate two experiments (laboratory and field). The laboratory experiment involved gas flow through shale specimens tested in a triaxial cell. In the field experiment, gas flow was forced through a sand–bentonite barrier. Experimental results and model calculations are compared in the paper.
dc.format.extent20 p.
dc.publisherInstitution of Civil Engineers (
dc.rightsAttribution-NonCommercial-NoDerivs 3.0 Spain
dc.subjectÀrees temàtiques de la UPC::Enginyeria civil::Geotècnia::Mecànica de sòls
dc.subjectÀrees temàtiques de la UPC::Desenvolupament humà i sostenible::Enginyeria ambiental::Tractament dels residus
dc.subject.lcshRadioactive waste disposal
dc.subject.lcshClays and the environment
dc.subject.otherCase history
dc.subject.otherNumerical modelling
dc.subject.otherPartial saturation
dc.subject.otherClay -- permeability
dc.subject.otherPore pressures
dc.subject.otherRadioactive waste disposal
dc.titleGas flow through clay barriers
dc.subject.lemacResidus radioactius -- Emmagatzematge
dc.description.peerreviewedPeer Reviewed
dc.rights.accessOpen Access
local.citation.authorOlivella Pastallé, Sebastià; Alonso, Eduardo

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