摘要
西石门铁矿南区矿体大量出露矽卡岩层,矿体变缓变薄。对该矿体采矿工艺进行改进研究,改进现有无底柱分段崩落法开采工艺,采用3分段回采原则,并利用上、下双工作回采形式,实现上部贫矿与下部富矿同时开采,较好地适应了矿体产状的变化,实现了高效开采的目标。
A lot of silica rocks exposed from ore bodies in the southern district of Xishimen iron mine, resuhing in deposits becoming gently inclined and thin. The mining process of the existing non-pillar sublevel caving mining method in Xishimen Iron Mine is improved. With the principle of three phases stoping, and in the form of upper and lower double working lines ,both the upper "lean ore" and the lower "rich ore" can be achieved at the same time. It better adapts to the ore-body occurrence and reaches the target of high efficient exploitation.
出处
《金属矿山》
CAS
北大核心
2013年第1期53-55,共3页
Metal Mine
关键词
缓倾斜中厚矿体
无底柱分段崩落法
双工作面开采
采场结构
巷道支护
Gently inclined medium-thickness ore body, Pillarless sublevel caving method,Double working lines mining, Stope structure, Drift supports