Methodology for prediction of void ratio in thickened tailings deposition
Methodology for prediction of void ratio in thickened tailings deposition
批准号:
385905-2009
负责人:
Simms, Paul
金额:
$1.82万
依托单位:
依托单位国家:
加拿大
项目类别:
Collaborative Research and Development Grants
财政年份:
2009
资助国家:
加拿大
项目状态:
已结题
起止时间:
2009-01-01 至 2010-12-31
中文摘要
浓密尾砂的沉积是一种很有吸引力的矿山废弃物处理方法。传统上,尾矿以泥浆的形式沉积,这需要建造非常大的水坝。不幸的是,这些水坝经常失败,导致下游地区的经济和生态破坏。加厚的尾矿消除了这种灾难性失败的风险,通过将尾矿脱水,使其在沉积后立即表现出一定的强度,允许它们堆放在一个平缓的斜坡上。尾矿的强度可能会随着时间的推移而增加,因为沉降和干燥会进一步致密化。为了形成足够的强度以保持堆的稳定性,必须发生充分的干燥。
英文摘要
The deposition of thickened tailings is an attractive alternative for mine waste management. Conventionally, tailings are deposited as a slurry, which requires the construction of very large dams. Unfortunately, these dams have often failed, resulting in economic and ecological devastation of the areas downstream. Thickened tailings eliminates this risk of catastrophic failure, by dewatering the tailings to the point that they exhibit some strength immediately after deposition, allowing them to be stacked at a gentle slope. The strength of the tailings may increase over time due to further densification from settling and desiccation. Sufficient desiccation has to happen in order for enough strength to develop to maintain stability of the stack.
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Comparative study of the physics of soil-evaporation models
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资助金额:$1.97万
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依托单位:
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财政年份:2012
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负责人:Simms, Paul
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依托单位:
Modification of hydro-geotechnical properties of tailings for optimization of high density deposition
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批准号:326991-2011
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项目类别:Discovery Grants Program - Individual
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资助金额:$1.97万
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财政年份:2012
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负责人:Simms, Paul
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依托单位:
Modification of hydro-geotechnical properties of tailings for optimization of high density deposition
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批准号:326991-2011
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资助金额:$1.97万
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财政年份:2011
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依托单位:
Pilot scale simulation of thickened tailings flows for surface deposition
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依托单位:
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项目类别:Engage Grants Program
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资助金额:$1.82万
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财政年份:2010
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负责人:Simms, Paul
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依托单位:
Methodology for prediction of void ratio in thickened tailings deposition
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批准号:385905-2009
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项目类别:Collaborative Research and Development Grants
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资助金额:$4.01万
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财政年份:2010
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负责人:Simms, Paul
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依托单位:
Post-deposition evolution of surface deposited thickened tailings
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项目类别:Discovery Grants Program - Individual
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资助金额:$1.38万
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财政年份:2010
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负责人:Simms, Paul
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依托单位:
Pilot scale simulation of thickened tailings flows for surface deposition
-
批准号:370877-2008
-
项目类别:Collaborative Research and Development Grants
-
资助金额:$1.46万
-
财政年份:2009
-
负责人:Simms, Paul
-
依托单位:
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