Mechanistic Model for One-Dimensional Consolidation Behavior of Nonsegregating Oil Sands Tailings
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 stor...
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Veröffentlicht in: | Journal of geotechnical and geoenvironmental engineering 2008-02, Vol.134 (2), p.195-202 |
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creator | Wong, R. C Mills, B. N Liu, Y. B |
description | 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. |
doi_str_mv | 10.1061/(ASCE)1090-0241(2008)134:2(195) |
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C ; Mills, B. N ; Liu, Y. B</creator><creatorcontrib>Wong, R. C ; Mills, B. N ; Liu, Y. B</creatorcontrib><description>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. 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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.</description><subject>Applied sciences</subject><subject>Buildings. Public works</subject><subject>Computation methods. Tables. Charts</subject><subject>Exact sciences and technology</subject><subject>Geotechnics</subject><subject>Stabilization. Consolidation</subject><subject>Structural analysis. 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Stresses</topic><topic>TECHNICAL PAPERS</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Wong, R. C</creatorcontrib><creatorcontrib>Mills, B. N</creatorcontrib><creatorcontrib>Liu, Y. B</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>Civil Engineering Abstracts</collection><jtitle>Journal of geotechnical and geoenvironmental engineering</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Wong, R. C</au><au>Mills, B. N</au><au>Liu, Y. B</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Mechanistic Model for One-Dimensional Consolidation Behavior of Nonsegregating Oil Sands Tailings</atitle><jtitle>Journal of geotechnical and geoenvironmental engineering</jtitle><date>2008-02-01</date><risdate>2008</risdate><volume>134</volume><issue>2</issue><spage>195</spage><epage>202</epage><pages>195-202</pages><issn>1090-0241</issn><eissn>1943-5606</eissn><abstract>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.</abstract><cop>New York, NY</cop><pub>American Society of Civil Engineers</pub><doi>10.1061/(ASCE)1090-0241(2008)134:2(195)</doi><tpages>8</tpages></addata></record> |
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source | American Society of Civil Engineers:NESLI2:Journals:2014 |
subjects | Applied sciences Buildings. Public works Computation methods. Tables. Charts Exact sciences and technology Geotechnics Stabilization. Consolidation Structural analysis. Stresses TECHNICAL PAPERS |
title | Mechanistic Model for One-Dimensional Consolidation Behavior of Nonsegregating Oil Sands Tailings |
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