露天转地下开采复合型人工境界顶柱可行性研究  

Feasibility research on composite artificial boundary crown pillars in the transfer from open-pit to underground mining

作　　者：毛肖杰 陈玉明[1] 吴爱梅[1] 

机构地区：[1]昆明理工大学国土资源工程学院

出　　处：《黄金》2015年第10期40-43,共4页Gold

摘　　要：针对传统露天转地下开采过程中留设的天然境界矿柱回采率低、损失大的缺点,在参考国内外相关文献的基础上,通过相关的技术经济比较和FLAC3D数值模拟分析,讨论了一种主要以钢筋混凝土为结构的人工境界顶柱代替天然境界矿柱作为境界顶柱的经济性和安全性。可行性研究结论可为类似工程设计时参考。Natural boundary crown pillars set in the conventional transfer from open-pit to underground mining lead to low extraction rate and high ore loss. To solve the problem,the paper refers to related literature home and a- broad,compares technical indicators,conducts numerical simulation by FLA3D,and discusses the economy and safety of using artificial boundary crown pillars structured mainly by steel and concrete instead of natural crown pillars as boundary crown pillars. The feasibility research conclusion can be referred to in the design of similar projects.

关 键 词：露天转地下开采 人工境界顶柱 天然境界矿柱 替代 可行性 

分 类 号：TD854[矿业工程—金属矿开采]