ABSTRACT

This paper deals with optimal decisions regarding truck and shovel scheduling problem in open-pit mines. A mixed-integer linear goal programming model (MILGP) is formulated for solving the problem, aiming at four major goals: (1) maximise production, (b) minimise deviations in head grade, (c) minimise deviations in tonnage to the ore destinations, and (d) minimise fuel consumption of mining trucks. This paper also examines the extent to which the priority of objectives can affect the results and efficiency of the mining operation. Implementation of the model with a copper mine case study demonstrated that the proposed model is effective and efficient.

摘要

本文讨论了露天矿中卡车和铲车调度问​​题的优化决策。一个混合整数线性目标规划模型 (MILGP) 被制定来解决这个问题，旨在实现四个主要目标：(1) 最大化产量，(b) 最小化头品位偏差，(c) 最小化到矿石目的地的吨位偏差，以及 (d) 尽量减少矿用卡车的燃料消耗。本文还研究了目标的优先级在多大程度上影响了采矿作业的结果和效率。该模型在铜矿案例研究中的实施表明所提出的模型是有效和高效的。