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Methodology for prediction of void ratio in thickened tailings deposition

Methodology for prediction of void ratio in thickened tailings deposition
浓缩尾矿沉积孔隙率预测方法
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

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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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