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Easy proft maximization method for open-pit mining

Journal of Rock Mechanics and Geotechnical Engineering 2013年第5期5卷 350-353页

作者： C.Dinis da Gama IST – Technical University of Lisbon

A methodology applicable at any phase of a surface mining project for evaluating its current technical and economic feasibility is *** requires the typically available quantitative data on the ore-body,with its three-dimensional block model developed upon accurate *** it allows estimations of exploitable reserves in function of various cut-off grades,such as the average grade of mineable ore,the tonnages of ore and waste rock,stripping ratios and proft estimates for different production *** cost evaluations of essential mine operations are available(such as ore mining,waste removal,ore concentration,transportation,indirect project costs and expected concentrate selling prices),the methodology will provide clear indications on the economic feasibility of mining,including the best available options at any *** expressions are developed on the basis of a proft mathematical function and an application example is presented with data available from an existing iron ore deposit.

关键词： Open-pit Proft maximization ore grade Stripping ratio Economic feasibility

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Easy profit maximization method for open-pit mining

Easy profit maximization method for open-pit mining

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第13届全国岩石动力学学术会议

作者： C.Dinis da Gama IST-Technical University of Lisbon Avenida Rovisco Pais 11049-001 LisboaPortugal

A methodology applicable at any phase of a surface mining project for evaluating its current technical and economic feasibility is presented. It requires the typically available quantitative data on the ore-body,with its three-dimensional block model developed upon accurate *** it allows estimations of exploitable reserves in function of various cut-off grades,such as the average grade of mineable ore,the tonnages of ore and waste rock,stripping ratios and profit estimates for different production levels. If cost evaluations of essential mine operations are available(such as ore mining,waste removal,ore concentration,transportation,indirect project costs and expected concentrate selling prices),the methodology will provide clear indications on the economic feasibility of mining,including the best available options at any *** expressions are developed on the basis of a profit mathematical function and an application example is presented with data available from an existing iron ore deposit.

关键词： Open-pit Profit maximization ore grade Stripping ratio Economic feasibility

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