中文摘要：

阶段采矿的三个重要方面必须被优化：每个阶段坑的阶段，几何学和地点的数字(包括最终的坑) ，并且是在每个阶段的 mined 的矿石和浪费数量。一个模型被介绍，在哪个一个序列地质上，最佳坑首先被产生然后动态地评估了同时优化上述三个方面，与最大化在场的全面的网的目的价值。在这个模型，这个问题的动态性质充分关于两时空被考虑，并且在提供不同的坑墙斜坡和不同凳子高度是柔韧的。模型被用于由 2 044 224 块组成的大存款并且证明了有效、实际。

英文摘要：

Three important aspects of phase-mining must be optimized：the number of phases,the geometry and location of each phase-pit（including the ultimate pit）,and the ore and waste quantities to be mined in each phase.A model is presented,in which a sequence of geologically optimum pits is first generated and then dynamically evaluated to simultaneously optimize the above three aspects,with the objective of maximizing the overall net present value.In this model,the dynamic nature of the problem is fully taken into account with respect to both time and space,and is robust in accommodating different pit wall slopes and different bench heights.The model is applied to a large deposit consisting of 2044 224 blocks and proved to be both efficient and practical.