分段留矿阶段崩落采矿法在极破碎矿体中的应用  

Application of Sublevel Shrinkage Caving Method in Fine-crushed Ore-body

作　　者：顾春红 郭子源[2] 李启月[2] 王卫华[2] 

机构地区：[1]湖南有色集团公司黄沙坪分公司,湖南郴州423000 [2]中南大学资源与安全工程学院,湖南长沙410083

出　　处：《矿冶工程》2012年第5期26-29,共4页Mining and Metallurgical Engineering

基　　金：国家重点基础研究发展计划(973)项目(2010CB732004);国家自然科学基金资助项目(50934006);2011年中南大学硕士生学位论文创新资助项目(2011ssxt269)

摘　　要：黄沙坪矿791#-1矿体为新探矿体,矿岩破碎不稳固、允许暴露面积小、矿体含硫量高,且黄沙坪矿无胶结充填系统,限制了采矿方法的选择,开采难度大。针对以上问题,进行了中深孔成孔试验和孔底温度监测试验,在此基础上,采用分段留矿阶段崩落采矿法,并介绍了采场结构尺寸设计、采准切割、凿岩爆破、通风、出矿等采矿生产环节。生产实践表明,该方法能够实现安全、高效回采。In view of problems in mining newly prospected 79^#1-1 orebody in Huangshaping Mine, including fine-crushed and unstable rock, small area permissible exposed and high content of sulfur, plus limited mining method due to no cemented backfilling system in Huangshaping Mine, medium-deep hole-forming test and hole bottom temperature monitoring test were conducted. Based on the test results, sublevel shrinkage caving method was adopted, and its structure size of stope in design, mining cutting engineering, rock drilling ＆ blasting technology, ventilation and ore removal in mining operation were introduced. The practice has shown this method is safe and high efficient for stoping.

关 键 词：分段静态留矿 崩落法 破碎矿体 安全回采 

分 类 号：TD852[矿业工程—金属矿开采]