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联合采用Biharmonic样条插值和线性插值方法,构建含有位置坐标和品位数据的铝土矿层三维模型;模拟长壁开采实际过程,建立虚拟开采程序对矿层模型进行不同切割高度下的开采推演,基于矿石贫化率和损失率研究每个切割步骤的最佳切割高度以及合理的截割滚筒直径。结果表明,Biharmonic样条和线性耦合插值方法能够准确描述铝土矿层的层状结构,揭露的矿层品位高、富矿比例大、具有较高的开采价值,并且最佳的截割高度范围和截割滚筒直径范围分别为1.72~2.84 m和1.42~1.72 m。根据研究结果,构建能够智能化实时调节开采高度的控制程序,用于指导实际的长壁开采过程,并保证最小的矿石贫化率和损失率。
The Biharmonic spline interpolation and linear interpolation are combined to construct a three-dimensional model of bauxite with position coordinates and grade data. The simulation of the actual process of longwall mining and the establishment of virtual mining program are used to mine the mining model under different cutting heights. Ore Dilution Rate and Losses The optimum cut height for each cutting step and the reasonable cutter diameter were investigated. The results show that the Biharmonic spline and linear coupled interpolation method can accurately describe the layered structure of bauxite layer, revealing the high grade of ore layer, large proportion of rich ore and high exploitation value, and the best cutting height range and cut Cutting drum diameter range of 1.72 ~ 2.84 m and 1.42 ~ 1.72 m. Based on the results of the study, a control program was developed that intelligently adjusted the mining height in real time to guide the actual longwall mining process with minimal ore depletion and loss rates.