锡铁山铅锌矿采矿方法优选及采场结构参数优化研究  

Optimal Selection of Mining Methods and Optimization of Stope Structure Parameters in Xitieshan Lead-Zinc Mine

作　　者：展卫露 张忠传 李正明[1] 高天宇 ZHAN Weilu;ZHANG Zhongchuan;LI Zhengming;GAO Tianyu(Xitieshan Branch of Western Mining Co.,Ltd.,Haixi Mongolian and Tibetan Autonomous Prefecture,Qinghai 816203,China;Changsha Institute of Mining Research Co.,Ltd.,Changsha,Hunan 410012,China;National Engineering Research Center for Metal Mining,Changsha,Hunan 410012,China)

机构地区：[1]西部矿业股份有限公司锡铁山分公司,青海海西蒙古族藏族自治州816203 [2]长沙矿山研究院有限责任公司,湖南长沙410012 [3]国家金属采矿工程技术中心,湖南长沙410012

出　　处：《矿业研究与开发》2024年第8期48-55,共8页Mining Research and Development

摘　　要：锡铁山铅锌矿由空场法转充填法开采,存在空场下作业安全隐患高、生产能力低下、采切工程量大等问题。结合现场开采技术条件,提出了3种在技术上可行的采矿方案:分段凿岩阶段空场嗣后充填采矿法、小分段空场嗣后充填采矿法、上向水平分层充填采矿法,通过对各方案的生产能力、贫化损失、采切比等技术经济条件进行比较分析,优选出适宜的采矿方法为小分段空场嗣后充填采矿法。采用数值模拟软件对采场结构参数进行优化,确定采场宽度不宜超过10m,最佳分段高度为12 m。矿山实际运用结果证明,经过采矿方法和采场结构参数优化后,采场生产能力相对于原定的上向水平分层充填采矿法提升了108.7%,贫化损失率与原拟定方案相近,采矿安全性更高,取得了较好的技术经济指标。Due to the transition from open stoping mining to filling mining,there are some problems such as high safety hazards,low production capacity,and a large amount of mining and cutting work in the Xitieshan lead-zinc mine.Based on the on-site mining technology conditions,three technically feasible mining schemes were proposed,including sublevel drilling-stage open stoping with subsequent filling mining method,small segmented open stoping with subsequent flling mining method,and upward horizontal layered filling mining method.By comparing and analyzing the production capacity,impoverishment loss,mining to cutting ratio and other technical and economic conditions of each scheme,the suitable mining scheme was selected as the small segmented open stoping with subsequent filling mining method.Numerical simulation was used to optimize the structural parameters of the stope.It is determined that the width of the stope should not exceed 1o m,and the optimal segment height is 12 m.The actual application results of the mine have proved that compared to the original upward horizontal layered filling mining method,after optimizing the mining method and the structural parameters of the stope,the production capacity of the mine has increased by 108.7%,the dilution rate and loss rate have little change,the mining safety is improved,and better technical and economic indicators are obtained.

关 键 词：采矿方法优选 结构参数优化 小分段空场嗣后充填采矿法 数值模拟 

分 类 号：TD861[矿业工程—金属矿开采]