深孔采矿法在急倾斜极薄钨矿脉的应用  

The Application of Deep-hole Mining Method in Steeply Inclined and Extremely Thin Tungsten Ore Bodies

作　　者：汪杰 袁兵 勒治华 叶光祥 汪光鑫 郭成淋 WANG Jie;YUAN Bing;LE Zhihua;YE Guangxiang;WANG Guangxin;GUO Chenglin(Ganzhou Nonferrous Metallurgy Research Institute Co.,Ltd.,Ganzhou 341000,Jiangxi,China;Jiangxi Xialong Tungsten Industry Co.,Ltd.,Dayu 341518,Jiangxi,China)

机构地区：[1]赣州有色冶金研究所有限公司,江西赣州341000 [2]江西下垄钨业有限公司,江西大余341518

出　　处：《中国钨业》2024年第5期1-7,共7页China Tungsten Industry

基　　金：赣鄱俊才支持计划(20232BCJ23063)。

摘　　要：针对赣南某钨矿山的急倾斜极薄矿脉,提出了浅孔留矿法、中深孔留矿法、大孔径深孔落矿空场法3种方案进行对比分析,最终选择大孔径深孔落矿空场法进行工业试验。结果表明,采用大孔径深孔落矿空场法开采急倾斜极薄矿脉,采场平均生产能力可达到90~100 t/d,其损失率约为5%,贫化率为85%~90%,总体应用效果较好。与原有浅孔留矿法相比,大孔径深孔落矿空场法提高了采场生产能力,降低了工人工作强度,保证了工人作业安全。For the steeply dipping and extremely narrow tungsten veins in a southern Jiangxi mine,three mining schemes were proposed for comparative analysis:shallow-hole shrinkage stoping,medium-length hole shrinkage stoping,and large-diameter long-hole open stoping.The large-diameter long-hole open stoping method was ultimately selected for industrial trials.Results indicated that when applying this method to extract steeply dipping ultra-narrow veins,the average production capacity of stopes reached 90-100 t/d,with a loss rate of approximately 5%and dilution rate of 85%-90%,demonstrating favorable overall application effectiveness.Compared with conventional shallow-hole shrinkage stoping,the large-diameter long-hole open stoping method enhances stope productivity,reduces labor intensity,and ensures operational safety for workers.

关 键 词：急倾斜极薄矿脉 深孔采矿 浅孔留矿法 大孔径深孔落矿空场法 

分 类 号：TD853.33[矿业工程—金属矿开采]