摘要
本文针对云南某铅锌矿矿床赋存条件和生产实际,结合矿体特点和现状,对于部分地质条件复杂、在同一中段多层含矿、尖灭再现、分枝复合现象突出、倾角大于50°的矿块,提出时间短,见效快的浅孔落矿的空场采矿方法。经过两年多的生产实践证明,采用该空场法开采该矿复杂条件下的膨胀缩小尖灭复现多变薄矿脉矿体,在技术上和经济上均取得良好的效果,在今后的生产中还将进一步应用该方法。
The report based on the occurrence and practical production of a certain zinc-lead deposit in Yunnan,aims is to propose a less time-consuming and efficient short-hole open-stope mining method,which is mainly focus on ore blocks associated with some complex geology,distributed in multi-layers at one level,with pinchout reappearance,with obvious branch-merging phenomenon and dipping 50° or more,and the method is also connecting to the orebody characteristics and current status.Having study and practice for over two years,the applications of this method have been technically and economically proved to be success in excavating inflating,shrinking,pinch-outing,reappearing,changeable and narrow body,and deserve a promotion among mines
出处
《中国矿业》
北大核心
2015年第S2期167-169,174,共4页
China Mining Magazine
关键词
急倾斜
薄矿脉
空场
顶板管理
steeply inclined
narrow orebody
open-stope
roof control
