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Titre :
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A simplified flow model for multi-layered soil systems
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Auteurs :
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P. Nadarajah ;
R. Rowe ;
THE UNIVERSITY OF WESTERN ONTARIO, DEPARTMENT OF CIVIL ENGINEERING
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Type de document :
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rapport
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Editeur :
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S.E., 1995
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Collection :
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Geotechnical Research Centre Report, GEOT-1-95
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Format :
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55 p.
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Langues:
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= Anglais
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Catégories :
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DECHETS
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Mots-clés:
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DECHARGE
;
MULTICOUCHE
;
SOL
;
HYDROGEOLOGIE
;
ECOULEMENT
;
MODELE MATHEMATIQUE
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Résumé :
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A simplified analytical flow model, which considers multi-layered soil systems, is developed herein for estimating the steady-state velocity field and the head distribution beneath landfills and in multiple aquitard-aquifer systems. The landfills either can be engineered with a multi-liner and -drainage leyer system or can be without any such engineered layers. The model is found to give results in very good agreement with those from a finite element model for various landfill geometries and hydrogeologic settings ; but, the model requires only a fraction of the set up time. The application of the method is illustrated with respect to the design of two hypothetical landfills by considering several design options. The effect of landfill size and the potential "shadow effect" is also examined.
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