基于主要目标法的矿体开采贫损模型优化

Optimization of Ore Body Mining Poverty Loss Model Based on Main Objective Method

以某矿无底柱分段崩落法1565 m中段为背景,对回采的矿石量、损失的矿石量以及混入的废石量等指标进行计算,建立了以采出矿石品位、矿石贫化率和回收率为多目标优化的数学模型。结合矿山开采的实际情况,选择采出矿石的品位为优化问题的主要目标。利用VB编程语言对3DMINE矿业工程软件进行二次开发,并且利用Origin软件对所得数据进行分析和拟合,最后得出切割槽与退采位置的布置方案:切割槽位置距矿体上盘下部边界的直线距离大于10 m,退采位置距矿体下盘上部边界的直线距离大于4 m。

Taking the 1565 m middle section of a sublevel caving method as a background,the amount of ore recovered,the amount of ore lost,and the amount of waste rock mixed in are calculated,and the quality of the ore and the dilution rate of the ore are established.And the recovery rate is a multi-objective mathematical model.Combining the actual situation of mining,choose the taste of the mined ore as the main goal of the optimization problem.Use the VB programming language to develop the 3DMINE mining engineering software,and use the Origin software to analyze and fit the obtained data,and finally get the layout plan of the cutting groove and the withdrawal position:the cutting groove position is away from the lower boundary of the upper wall of the ore body The straight-line distance is greater than 10 m,and the straight-line distance between the withdrawal position and the upper boundary of the bottom wall of the ore body is greater than 4 m.