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Mechanistic model for one-dimensional consolidation behavior of nonsegregating oil sands tailings / R. C. Wong in Journal of geotechnical and geoenvironmental engineering, Vol. 134 N°2 (Fevrier 2008) 

Public ISBD [article]  in Journal of geotechnical and geoenvironmental engineering > Vol. 134 N°2 (Fevrier 2008) . - pp. 195–202 Titre : Mechanistic model for one-dimensional consolidation behavior of nonsegregating oil sands tailings Type de document : texte imprimé Auteurs : R. C. Wong, Auteur ; B. N. Mills, Auteur ; Y. B. Liu, Auteur Année de publication : 2008 Article en page(s) : pp. 195–202 Note générale : Geotechnical a,d geoenvironmental engineering Langues : Anglais (eng) Mots-clés : Soil  consolidation  Permeability  Compression  Mixtures  Tailings Résumé : Thermal-chemical-hydraulic separation process is used to extract bitumen from surface mined oil sands ores. Huge amounts of oil sands fine tailings are produced from the extraction process. The most fundamentally challenging issue facing the geo-environmental community is containment, long-term storage, and volume reduction of oil sands fine tailings. One of the fine tailings disposal techniques is to homogenize fine tailings with coarse tailings forming nonsegregating tailings (NST). NST exhibits enhanced performance in consolidation and strength, and reduction in water retention as compared to fine tailings. This paper examines one-dimensional consolidation behavior of NST with varying fine and coarse tailings compositions. A mechanistic model based on theory of mixture is developed and proposed to predict consolidation behavior of NST. This model is demonstrated to achieve an optimum design of NST for accelerated consolidation rate and water recovery. En ligne : http://ascelibrary.org/doi/abs/10.1061/%28ASCE%291090-0241%282008%29134%3A2%2819 [...] [article] Mechanistic model for one-dimensional consolidation behavior of nonsegregating oil sands tailings [texte imprimé] / R. C. Wong, Auteur ; B. N. Mills, Auteur ; Y. B. Liu, Auteur . - 2008 . - pp. 195–202. Geotechnical a,d geoenvironmental engineering Langues : Anglais (eng) in Journal of geotechnical and geoenvironmental engineering > Vol. 134 N°2 (Fevrier 2008) . - pp. 195–202 Mots-clés : Soil  consolidation  Permeability  Compression  Mixtures  Tailings Résumé : Thermal-chemical-hydraulic separation process is used to extract bitumen from surface mined oil sands ores. Huge amounts of oil sands fine tailings are produced from the extraction process. The most fundamentally challenging issue facing the geo-environmental community is containment, long-term storage, and volume reduction of oil sands fine tailings. One of the fine tailings disposal techniques is to homogenize fine tailings with coarse tailings forming nonsegregating tailings (NST). NST exhibits enhanced performance in consolidation and strength, and reduction in water retention as compared to fine tailings. This paper examines one-dimensional consolidation behavior of NST with varying fine and coarse tailings compositions. A mechanistic model based on theory of mixture is developed and proposed to predict consolidation behavior of NST. This model is demonstrated to achieve an optimum design of NST for accelerated consolidation rate and water recovery. En ligne : http://ascelibrary.org/doi/abs/10.1061/%28ASCE%291090-0241%282008%29134%3A2%2819 [...]