齐大山铁矿深部开采扩建稳产过渡方案优化

Optimization of Stable Transition Program during Deep Mining Expansion of Qidashan Iron Mine

齐大山铁矿深部露天一期开采向二期扩建过渡开工较晚,实现稳产过渡难度很大。根据矿山开采现状和二期境界内矿岩分布情况,建立了符合矿山实际的地质模型;运用优化了的生产技术参数,分析了齐大山铁矿深部开采扩建稳产过渡滞后的实际和现有的开拓运输系统的生产能力;对照二期深部开采扩建稳产过渡初步设计,以构建的地质模型为基础,编制了3个不同的实现稳产过渡的采剥进度计划方案和开拓运输系统的建议,提出了实现稳产过渡的合理深度。通过方案的技术可行性比较,确定了高效可行的生产扩建稳产过渡方案及矿山生产建议。

The deep open-pit mining project of the Qidashan Iron Mines is in the process of transition from the first phase to the second phase.However,the transition started late,it＇s quite difficult to achieve stable transition.According to the current situation of mining and the distribution of the mine rock within the scope of the second phase,ageological model corresponding to the mine＇s reality was established.With the use of the optimized production technology parameters,the practical situation of the hysteretic transition and the productivity of existing developing transport system were analyzed.Contrasting to the primary design of the stable transition to the second phase of deep open-pit mining project and based on the geological model built,three different stripping schedule programs and suggestions of development transport system were drawn up,and the reasonable depth of the stable transition was presented.Through analyzing the technical feasibility,an efficient and feasible production expansion of stable transition plan and a proposal of the mine production were determined.