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为了实现地下金属矿山采掘作业计划编制的实时准确与科学有效性,针对矿山作业地点分散、生产组织复杂、矿石质量难以控制等特征,构建了基于0-1整数规划的作业计划优化模型.通过分析开采技术经济指标及空间逻辑关系,以最小品位偏差为目标,将产量均衡、出矿能力以及品位高低结合开采等转化为约束条件,考虑各采场作业工序、回采顺序、生产能力以及其他生产要素等,运用计算机技术和整数规划方法,得出地下矿山采掘作业计划最优方案.以国内某大型金矿为案例进行了模型的有效性验证,解算出矿山最优的采掘作业计划,并得出作业计划甘特图.结果表明,模型能够指导完成生产作业任务,且满足作业计划连续性和均衡性要求.
In order to realize the real-time accuracy and scientific validity of the mining planning of underground metal mines, aiming at the characteristics of decentralized mining sites, complex production organization and poor control of ore quality, an optimization model of job planning based on 0-1 integer programming was constructed. Mining technology and economic indicators and the spatial logic of the minimum grade deviation as the goal, the output balance, mining capacity and the level of mining combined with conversion into constraints, taking into account the work area of the stope, the order of mining, production capacity and other factors of production , And so on, using computer technology and integer programming method, the optimal plan of mining operation plan for underground mine is obtained.The effectiveness of the model is validated by a case study of a large gold mine in China, and the optimal mining plan for mine is calculated. The job planning Gantt chart shows that the model can guide the completion of production tasks and meet the requirements of job continuity and balance.