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金属矿山 ›› 2012, Vol. 41 ›› Issue (03): 23-26.

• 采矿工程 • 上一篇    下一篇

大倾角层状锰矿长壁式开采分析

尹志华1,2,才庆祥3,孛志鹏1,马立强1   

  1. 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
  • 出版日期:2012-03-27 发布日期:2012-04-18
  • 基金资助:

    * 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)。

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

Yin Zhihua1,2,Cai Qingxiang3,Bo Zhipeng1,Ma Liqiang1   

  1. 1.School of Mining,China University of Mining and Technology;2.Guizhou Liupanshui
    Municipal People's Government;3.China University of Mining and Technology
  • Online:2012-03-27 Published:2012-04-18

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。

关键词: 锰矿, 大倾角, 长壁开采, 循环进尺

Abstract: 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.

Key words: Manganese deposit, Large inclined angle, Long-wall mining, Cyclical footage