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。
Acoupled biharmonic spline and linear interpolation algorithm was proposed to create a three-dimensional smooth deposit model with minimal curvature containing grade and position data. To obtain the optimal technical parameters, such as cuttingheight and drum diameter, a virtual longwall mining procedure was modelled by simulating the actual fully mechanized longwall mining process. Based on the above work, a bauxite deposit in a longwall mining panel was modelled by scattered grade data from ores sampled on the entry wall. The deposit was then demarcated by industrial indexes and sliced according to the virtual longwallmining procedure. The results show that the proposed interpolation algorithm can depict the stratiform structure of bauxite depositsand that the uncovered bauxite deposit has high proportions of high-grade and rich ore. The ranges of optimal cutting height and drum diameters are 1.72?2.84 m and 1.42?1.72 m, respectively. Finally, an intellectualized longwall mining procedure was designed to guide the mining process with the lowest dilution and loss rates.
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