Dynamic phase-mining optimization in open-pit metal mines

被引：12
|
作者：
Gu Xiao-wei [1 ]
Wang Qing [1 ]
Ge Shu [1 ]
机构：
[1] Northeastern Univ, Coll Resource & Civil Engn, Shenyang 110004, Peoples R China
来源：
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA | 2010年 / 20卷 / 10期
基金：
中国国家自然科学基金;
关键词：
open-pit; phase-mining; dynamic programming; optimization;
D O I：
10.1016/S1003-6326(09)60404-0
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
Three important aspects of phase-mining must be optimized: the number of phases, the geometry and location of each phase-pit (including the ultimate pit), and the ore and waste quantities to be mined in each phase. A model is presented, in which a sequence of geologically optimum pits is first generated and then dynamically evaluated to simultaneously optimize the above three aspects, with the objective of maximizing the overall net present value. In this model, the dynamic nature of the problem is fully taken into account with respect to both time and space, and is robust in accommodating different pit wall slopes and different bench heights. The model is applied to a large deposit consisting of 2 044 224 blocks and proved to be both efficient and practical.
引用
收藏
页码：1974 / 1980
页数：7
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