Simultaneous multi-sector block cave mine production scheduling considering operational uncertainties

Shahrokh Paravarzar, H. Askari-Nasab, Y. Pourrahimian, X. Emery
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Abstract

ABSTRACT The main objective of this study is to provide a practical and near-optimal mine production schedule for block caving operations considering operational uncertainty. The problem is defined in the context of goal programming optimization to meet the operational objectives, including tonnage and grade as daily production targets. The considered operational constraints include drawpoints and ore pass design, draw rate, mine production, and transportation capacities in different operational levels, tonnage and grade constraints, and mine production targets in the presence of several mining sectors. The developed model is verified and validated using historical operational data obtained from an actual block caving operation. The practicality and flexibility of the framework are examined through three different operational scenarios and compared with the real block caving operation mine plans and historical production data.
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考虑运行不确定性的多扇区块状溶洞矿同步生产调度
本研究的主要目的是为考虑作业不确定性的块状崩落作业提供一个实用的、接近最优的矿山生产计划。该问题是在目标规划优化的背景下定义的,以满足运营目标,包括吨位和等级作为每日生产目标。所考虑的作业限制包括抽采点和矿道设计、抽采率、不同作业水平的矿山生产和运输能力、吨位和品位限制以及存在几个采矿部门的矿山生产目标。利用实际块体崩落过程中获得的历史作业数据,对所建立的模型进行了验证。通过三种不同的作业场景,并与实际块体崩落作业方案和历史生产数据进行对比,验证了该框架的实用性和灵活性。
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来源期刊
CiteScore
2.20
自引率
9.10%
发文量
5
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