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结合石人沟铁矿实际,有针对性地研究了露天转地下“过渡期”所遇到的技术问题如合理的境界矿柱选择、露天坑汇水的疏干与井下排水、露天及井下爆破、矿岩运输系统的规划与改造、过渡期生产能力均衡与稳定、露天采场最终边帮的稳定、露天及井下排水的综合利用等方面,阐述了解决方案和实施效果。
In combination with the actual Shirengou iron mine, the technical problems encountered in the transitional period from open pit to underground are studied in a targeted manner. For example, reasonable pillar selection, dredging and downhole drainage in open pit pit, open pit and downhole blasting , The planning and reconstruction of the ore transportation system, the equilibrium and stability of production capacity during the transition period, the stability of the open pit and the comprehensive utilization of open drainage and underground drainage, and the solutions and implementation effects are expounded.