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急倾斜薄矿体浅孔留矿采矿法回采工艺研究
- 王雷|赵剑波|邹圣贤|曹帅
- 作者单位：
- 内蒙古乌拉特中旗图古日格金矿|内蒙古乌拉特中旗图古日格金矿|北京科技大学土木与环境工程学院|北京科技大学土木与环境工程学院
基金项目：
- 国家重点研发计划项目（2022YFC2905004）
详细信息：
- 作者简介：
- 王雷（1984—），男，高级工程师，从事矿山采选生产技术管理工作；E-mail：286385222@qq.com
- 通讯作者：
- isnull
- PDF下载
Research on short-hole shrinkage mining method for steeply dipping thin ore bodies
- English Author：
- Tugurige Gold Mine,Wulate Middle Banner,Inner Mongolia|Tugurige Gold Mine,Wulate Middle Banner,Inner Mongolia|School of Civil and Environmental Engineering,University of Science and Technology Beijing|School of Civil and Environmental Engineering,University of Science and Technology Beijing
- Unit：
- 摘要
- 在线预览
- 参考文献
摘要:
急倾斜薄矿体开采历来是国内外采矿界面临的重大技术难题之一。以图古日格金矿急倾斜薄矿体为研究对象，开展了浅孔留矿采矿法试验研究。详细论述了该方法的采准切割、凿岩爆破、通风、平场、出矿和采空区精细化扫描与安全处置等工艺。试验结果表明：浅孔留矿采矿法对于上下盘不稳固的急倾斜薄矿体开采是完全可行的，试验采场开采取得了采矿损失率和矿石贫化率均在15 %以内、出矿品位3.32 g/t的良好技术指标。研究结果能够为类似开采技术条件的矿山提供参考。
关键词:
采矿方法；急倾斜薄矿体；浅孔留矿采矿法；凿岩爆破；通风；采矿损失率；矿石贫化率
Abstract:
The extraction of steeply dipping thin ore bodies has long been a significant technical challenge in the mining industry,both domestically and internationally.This study takes the steeply dipping thin ore body at Tugurige Gold Mine as the research subject and carries out experimental study on the short-hole shrinkage mining method.The preliminary mining cutting,drilling, blasting,ventilation,leveling,ore extraction,and precise scanning and safety management of the mined-out area of the method are discussed in detail.Experimental results indicate that the short-hole shrinkage mining method is entirely feasible for mining steeply dipping thin ore bodies with unstable hanging and foot walls,achieving good technical indicators such as a mining loss rate and ore dilution rate both under 15 % and an ore grade of 3.32 g/t.The findings provide a reference for similar mining conditions.
Keywords:
mining method;steeply dipping thin ore body;short-hole shrinkage mining method;drilling blasting;ventilation；mining loss rate;ore dilution rate