大倾角层状锰矿长壁式开采分析  

Analysis of Long-wall Mining at Large Angle Layered Manganese Deposit

作　　者：尹志华[1,2] 才庆祥[3] 孛志鹏[1] 马立强[1] 

机构地区：[1]中国矿业大学矿业工程学院 [2]贵州省六盘水市人民政府 [3]中国矿业大学

出　　处：《金属矿山》2012年第3期23-26,共4页Metal Mine

基　　金：国家自然科学基金青年基金项目(编号:50904063);中国矿业大学青年科研基金项目(编号:2008A003)

摘　　要：针对长沟锰矿矿石层状赋存条件,借鉴煤矿长壁式开采思想,创新性提出了单层崩落采矿法和俯伪斜走向长壁分段(密集)采矿法。比较分析新旧采矿方法,得出:矿体倾角大于35°时,采用俯伪斜走向长壁分段(密集)采矿法;当矿体倾角小于35°时,采用单层崩落采矿法。在特殊开采条件下仍然选用房柱采矿法。通过数值模拟研究表明:长壁工作面的循环进尺在1.6 m时,可以确保工作面的安全高效生产。In view of the layered occurrence conditions of Changgou manganese deposit,and referring to the long-wall mining idea of coal mine, the single-caving mining method and oblique sublevel concentration coal mining methods are proposed. Compared with the several mining methods, the conclusion is that with the dip angle over 35°, the oblique sublevel concentration coal mining method is effective and with the dip angle less than 35°,the single-caving mining method is practical. The room-pillar method is still useful in special mining condition. The numerical simulations indicate that the long-wall working face with the cyclical footage of 1.6 m can assure safety and high effective production.

关 键 词：锰矿 大倾角 长壁开采 循环进尺 

分 类 号：TD823.2[矿业工程—煤矿开采]