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地下金屬礦山采掘作業計劃優化模型

Optimization model of mining operation scheduling for underground metal mines

  • 摘要: 為了實現地下金屬礦山采掘作業計劃編制的實時準確與科學有效性,針對礦山作業地點分散、生產組織復雜、礦石質量難以控制等特征,構建了基于0-1整數規劃的作業計劃優化模型.通過分析開采技術經濟指標及空間邏輯關系,以最小品位偏差為目標,將產量均衡、出礦能力以及品位高低結合開采等轉化為約束條件,考慮各采場作業工序、回采順序、生產能力以及其他生產要素等,運用計算機技術和整數規劃方法,得出地下礦山采掘作業計劃最優方案.以國內某大型金礦為案例進行了模型的有效性驗證,解算出礦山最優的采掘作業計劃,并得出作業計劃甘特圖.結果表明,模型能夠指導完成生產作業任務,且滿足作業計劃連續性和均衡性要求.

     

    Abstract: To realize the accurate and scientific optimization of mining production scheduling for underground metal mines, a mathematic model based on 0-1 integer programming was constructed in view of the characteristics of mining process, such as decentralized production sites, complex production organization and difficulty in controlling the quality of the ore. After the requirements of economic index and spatial sequence relationship being analyzed, an optimization model was proposed which constrained by the yield balance, ore-drawing capacity and combination of high and low grade, aiming at the minimum grade deviation. The optimal mining schedule for underground mines was obtained by computer technology and integer programming to meet the operating procedure, mining sequence, production capacity and other factors. The optimization model was verified by a case in a large gold mine. The optimal solution, expressed by the Gantt chart, indicates that the model is not only meaningful to guide the completion of production tasks in underground mine operation scheduling, but also meets the requirements of continuity and equilibrium of operation scheduling.

     

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