白庙沟钼矿露天转地下开采境界矿柱参数设计研究

Parameter selection for the safety pillars in the transition areas from surface to underground mining at Baimiaogou molybdenum mine

根据白庙沟钼矿区150×104t/a采选工程可行性研究项目需要,为保证矿山由露天坑采转地下回采安全,采用了有限元设计思想,借助ANSYS有限元数值计算软件,建立隔层境,界矿柱的有限元数值计算模型,推定了隔层境界矿柱的最优结构参数.

According to the feasibility investigation of a 150 × 10^4 t/a mining project at Baimiaogou molybdenum mine, an FEA numerical model for constructing the interlayer safety pillars for the transition areas from surface to underground mining was built, based on the concept of finite element analysis and employing the FEA software ANSYS, and the structural parameters of the pillars were optimized, so as to secure the mining operations.