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dc.contributor.authorAbdolah Zadeh, Amir Massoodfr
dc.contributor.authorLacroix Vachon, Benoitfr
dc.contributor.authorCabral, Alexandrefr
dc.description.abstractAbstract: One important step in the design of inclined covers with capillary barrier effect (CCBE) is the determination of the water diversion length (DL). Numerical simulations can predict the DL more precisely than steady-state analytical solutions. Nevertheless, as simplified methods have always been part of engineering design, the application of analytical solutions with conservative boundary conditions, may allow engineers to make reasonable predictions, particularly during the pre-feasibility stage of a project. In this study, a CCBE was designed, constructed and instrumented at the Saint-Tite-des-Caps landfill, Quebec, Canada. This CCBE included a seepage control layer superimposing a sand-gravel capillary barrier. The seepage control layer was made up of deinking by-products (DBP), an industrial by-product that was previously disposed of as waste. The capillary barrier was designed using an adaptation of the Ross analytical solution and the scenario considered was that of steady-state flow during constant seepage flow applied uniformly at the top of the sand-gravel capillary barrier. Although these conditions appear simplistic, they were deemed reasonable because placement of the seepage control layer on the top of the capillary barrier led to very low suctions at the interface, thereby allowing uniform downward seepage rates, limited by the saturated hydraulic conductivity of the DBP. In this paper, a discussion about the behaviour of the cover system based on 4 years of field data from several instruments is presented. The challenge of using DBP, more precisely the settlement of the DBP layer and its impact on k sat , is also assessed. The DL was reassessed considering the new k sat . A discussion on the validity of employing analytical solutions to determine DL is also presented. This paper illustrates how certain variables affect the design of inclined CCBEs that include a highly compressible material as seepage control
dc.relation.ispartofGeotechnical and Geological Engineeringfr
dc.rightsAttribution - Pas d’Utilisation Commerciale - Pas de Modification 2.5 Canada*
dc.subjectCover with capillary barrier effect (CCBE)fr
dc.subjectDiversion lengthfr
dc.subjectSeepage control layerfr
dc.titleAssessment of the design of an experimental cover with capillary barrier effect using 4 years of field datafr
dc.rights.holder© Springerfr
udes.description.typepubRévisé et accepté par des pairsfr
udes.description.diffusionDiffusé par Savoirs UdeS, le dépôt institutionnel de l'Université de Sherbrookefr
dc.identifier.bibliographicCitationAbdolahzadeh, A. M., Lacroix Vachon, B., et Cabral, A. R. (sous presse). (2011). Assessment of the design of an experimental cover with capillary barrier effect using 4 years of field data. "Geotechnical and Geological Engineering", 29(5), 783-802.
udes.description.sourceGeotechnical and Geological Engineeringfr
udes.description.ordreauteursAbdolah Zadeh, Amir Massood; Lacroix Vachon, Benoit; Cabral, Alexandrefr

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Attribution - Pas d’Utilisation Commerciale - Pas de Modification 2.5 Canada
Except where otherwise noted, this document's license is described as Attribution - Pas d’Utilisation Commerciale - Pas de Modification 2.5 Canada