针对石人沟铁矿露天转地下过渡期开采I区地下采场结构参数问题展开了深入研究。通过建立有限元数值模型,对I区9种不同方案的地下采场结构参数进行了数值模拟,得出了地下开采时矿房和边帮的应力、应变情况。在此基础上,从安全和经济角度出发,建立综合模糊评判模型,通过方案对比、综合评判,最终得出了合理的矿房结构参数,为确保矿山在地下采场和边帮稳定的前提下安全、经济的生产提供了理论依据。 Aiming at the structural parameters of underground stope mining in I area in open pit transition from open pit to open pit in Shirengou iron mine, an in-depth study has been carried out. Through the establishment of the finite element numerical model, the structural parameters of underground stope in 9 different schemes of area I are numerically simulated, and the stress and strain of the underground mine and side bar are obtained. On this basis, from the safety and economic point of view, the establishment of a comprehensive fuzzy evaluation model, through program comparison, comprehensive evaluation, and ultimately come to a reasonable structural parameters of mining houses, in order to ensure that the mine in the underground stope and the edge of the premise of stability Safe and economical production provides a theoretical basis.