缓倾斜极薄矿体采场结构参数优化研究  

Optimization on Stope Structure Parameters of Gently Inclined Extra-thin Ore Body

作　　者：焦国芮 陈才贤 杨福斗 温世平 李恒 JIAO Guorui;CHEN Caixian;YANG Fudou;WEN Shiping;LI Heng(School of Civil and Resource Engineering,University of Science and Technology Beijing,Beijing 100083,China;State Key Laboratory of High-Efficient Mining and Safety of Metal Mines of Ministry of Education,University of Science and Technology Beijing,Beijing 100083,China;Zijin Tungsten Industry Group Co.,Ltd,Wenshan Zhuang and Miao Autonomous Prefecture,Yunnan 663000,China)

机构地区：[1]北京科技大学土木与资源工程学院,北京100083 [2]北京科技大学金属矿山高效开采与安全教育部重点实验室,北京100083 [3]文山麻栗坡紫金钨业集团有限公司,云南文山州663000

出　　处：《矿业研究与开发》2020年第6期1-4,共4页Mining Research and Development

摘　　要：在开采缓倾斜极薄矿体时,合理的采场结构参数是维护采场稳定性、提高矿山生产效率的有效措施。结合南温河钨矿缓倾斜极薄矿体开采的采场设计,针对0.5,1m厚的矿体,分别设计了6种采场结构参数方案,应用FLAC3D软件进行数值模拟,探究合适的采场结构参数。研究表明:对于0.5m厚的矿体,采用0.5m的间柱宽度、3m的回采宽度可以更好地维护采场稳定,降低矿石损失率;对于1m厚的矿体,同样采取0.5m的间柱宽度、3m的回采宽度的方案能达到最优的效果。Determing reasonable stope structure parameters is an effective measure to maintain the stope stability and improve the production efficiency of the mine while mining gently inclined extra-thin ore body.Combined with gently inclined extra-thin ore body in Nanwenhe Tungsten Mine,six schemes of stope structure parameters were designed for the ore bodies with thickness of 0.5 mand 1 m,and FLAC3D software was used for numerical simulation to explore the appropriate stope structure parameters.The results show that,for the ore body with thickness of 0.5 m,using 0.5 mof inter-column width and 3 mof mining width can better maintain the stope stability and reduce the ore loss rate.For the ore body with thickness of 1 m,adopting the same stope structure parameters can achieve the best effect.

关 键 词：缓倾斜极薄矿体 采场结构参数 采场稳定性 数值模拟 

分 类 号：TD853.21[矿业工程—金属矿开采]