Laboratory simulation of desiccation, settling, and consolidation in variably thick multilayer deposits of high-density tailings

P. Simms, F. Daliri, A. Manlagnit, Dunmola A.

In the proceedings of: GeoManitoba 2012: 65th Canadian Geotechnical Conference

Session: M2B - Mine Tailings

ABSTRACT: Understanding the post-deposition dewatering behaviour of various kinds of high-density tailings is important to achieving performance objectives. Mechanisms that contribute to dewatering include both consolidation as well as surface processes such as evaporation or freeze-thaw. While thin-lift deposition maximizes the contribution of surface processes to dewatering, relying on such processes alone requires large impoundment footprints. This study reports experiments simulating the post-deposition dewatering of gold tailings under a number of different configurations. These experiments include column tests simulating initial settling / self-weight consolidation of gold tailings prepared at different water contents and at different lift thickness, column tests on multilayer deposition of tailings deposited at 70% solids,

RÉSUMÉ: Comprendre le post-dépôt la déshydratation comportement des divers types de haute densité des résidus miniers est important à l'atteinte des objectifs de performance. Mécanismes qui contribuent à la déshydratation comprennent à la fois la consolidation ainsi que processus de surface tels que l'évaporation ou gel-dégel. Bien que mince-ascenseur dépôt optimise la contribution des processus de surface à la déshydratation, en s'appuyant sur les seuls processus nécessite de grandes empreintes la fourrière. Cette étude rend compte des expériences simulant la post-dépôt la déshydratation essais simulant le règlement initial consolidation des résidus préparés à différents teneur en eau et de levage différente épaisseur, colonne essais multicouche sur dépôts de stériles déposés à 70 % de solides, multicouches et tests sur des résidus placé dans une "boîte de séchage", avec un 0,5 m par 1 m zone de plan.

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Cite this article:
P. Simms; F. Daliri; A. Manlagnit; Dunmola A. (2012) Laboratory simulation of desiccation, settling, and consolidation in variably thick multilayer deposits of high-density tailings in GEO2012. Ottawa, Ontario: Canadian Geotechnical Society.

@article{Paper388,author = P. Simms; F. Daliri; A. Manlagnit; Dunmola A.,title = Laboratory simulation of desiccation, settling, and consolidation in variably thick multilayer deposits of high-density tailings,year = 2012}