ABSTRACT

In the design of open pit mines, the region to be mined is partitioned into pushbacks, subregions that allow the mining to be divided into distinct phases. Practical pushbacks are connected, satisfy a minimum width for mining equipment and include a haulage ramp. Current pushback models typically relax some or all of these mineability conditions; consequently, the outputs from those models require significant intervention by mining engineers. We present a formulation to generate maximum value practical pushbacks. A closeness factor is introduced to quantify the design’s mineability. Finally, a case study of a real mine shows that our model can produce pushbacks with more practical designs and better value than traditional approaches.

摘要

在露天矿的设计中，要开采的区域被划分为推回区，即允许将开采划分为不同阶段的子区域。实际的后推是相连的，满足采矿设备的最小宽度，并包括一个运输坡道。当前的推回模型通常会放宽部分或全部这些可开采性条件；因此，这些模型的输出需要采矿工程师的大量干预。我们提出了一个公式来产生最大价值的实际阻力。引入了接近度因子来量化设计的可挖掘性。最后，一个真实矿山的案例研究表明，我们的模型可以产生比传统方法更实用的设计和更好的价值的回弹。