A value adding approach to hard-rock underground mining operations: Balancing orebody orientation and mining direction through meta-heuristic optimization

作     者：Martha E.VILLALBA MATAMOROS Mustafa KUMRAL Martha E.VILLALBA MATAMOROS;Mustafa KUMRAL

作者机构：Department of Mining and Materials Engineering Mc Gill University 

基　　金：Project(488262-15)supported by the Natural Sciences and Engineering Research Council of Canada 

出 版 物：《Journal of Central South University》 (中南大学学报（英文版）)

年 卷 期：2019年第26卷第11期

页      码：3126-3139页

摘      要：Underground mines require complex construction activities including the shaft, levels, raises, winzes and ore passes. In an underground mine based on stoping method, orebody part(s) maximizing profit should be determined. This process is called stope layout optimization (SLO) and implemented under site-specific geotechnical, operational and economic constraints. For practical purpose, the design obtained by SLO shows consecutive stopes in one path, which assists in defining the mining direction of these stopes. However, this direction may not accommodate the spatial distribution of the ore grade: if the orebody orientation and mining direction differ, the value of the mining operation may decrease. This paper proposes an approach whereby paths in the SLO are defined as decision variables to avoid the cost of mining in the wrong direction. Furthermore, in the genetic-based formulation, which accounts for orebody uncertainty, a robust cluster average design process is proposed to improve SLO’s performance regarding metal content. A case study in narrow gold vein deposit shows that the profit of an underground mining operation could be underestimated by 25%-48% if the algorithm ignores stope layout orientation.

主 题 词：underground mine planning orebody uncertainty orebody orientation mining direction stope layout optimization 

学科分类：081901[081901] 0819[工学-海洋工程类] 08[工学] 

核心收录：

D　O　I：10.1007/s11771-019-4241-1

馆 藏 号：203858753...