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Rock mass characterisation and stope design

Rock mass characterisation and stope design
岩体特征和采场设计
批准号:
203360-2007
负责人:
Milne, Douglas
金额:
$1.46万
依托单位:
依托单位国家:
加拿大
项目类别:
Discovery Grants Program - Individual
财政年份:
2008
资助国家:
加拿大
项目状态:
已结题
起止时间:
2008-01-01 至 2009-12-31

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中文摘要
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英文摘要
The majority of the underground mining in Canada uses a method of extracting the ore called open stoping. A stope is a large underground excavation where the ore has been blasted and removed and these opening can often be the size of a ten story apartment building. The hanging wall and footwall of these openings follow the contact between the ore and the waste. Waste rock failing or sloughing off these walls during mining mixes with the ore and dilutes the grade. This sloughing of waste rock is called stope dilution and can create significant additional expense for mines since this material has to be hauled to surface, crushed and milled with the ore.
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