摘要
露采边坡和隔离矿柱稳定性分析是露天转地下矿山经常面临的问题,对于金属矿山地下开采安全生产极其重要。根据阳雀箐钒钛磁铁矿矿段隔离矿柱的厚度以及边坡工程地质条件,采用有限元数值软件对矿山3个阶段的矿体回采进行了模拟,结果表明:露采边坡在地下开采期间均处于稳定状态。验证了隔离矿柱已确定厚度的合理性,为该矿体安全高效回采提供了理论依据和技术指导。
The stability of open-pit slope and isolated pillar is the common problem during the transition from open pit to underground mining,and it is very important for the safe production of metallic mine.According to the thickness of isolated pillar and the slope engineering geological condition of Yangqueqing mine,the FEM program was adopted to simulate three stages orebody mining.The result showed that the open-pit slope was stable during underground mining,and the rationality of the isolated pillar thickness was verified.It provided the theoretical basis and technical guidance for orebody safe and effective mining.
出处
《中国矿山工程》
2017年第3期28-31,共4页
China Mine Engineering
基金
国家自然科学基金项目(41362013)
关键词
地下开采
露采
稳定性
隔离矿柱
underground mining
open-pit
stability
isolated pillar
