破碎带内难采矿体采矿方法优化研究

Optimization of mining of hardto-mine ore body in fracture zone

针对破碎带内成矿特点,结合矿山开采技术条件和现有开采情况,对现有采矿方法进行优化,采用上向分层干式充填采矿法进行开采,该采矿方法充分利用围岩的破碎性,有效解决了厚矿体开采后的废石充填问题,避免了工作面围岩瞬时冒落事故的发生;改善了采场作业环境,降低了矿石损失贫化指标,对类似矿山的开采具有一定的借鉴意义。

The mining method was optimized in light of the mineralization characteristics in fracture zone, the conditions of mining technology and the current mining status. The upward horizontal cut and dry filling mining method was used by making full use of broken surrounding rock, effectively solving the problem of waste rock filling from thick ore body mining, preventing the accident of instantaneous caving of surrounding rocks on the working face, improving operating environment in the stope and reducing indexes of ore dilution and loss. It can be provided as a referetce for mining operation in the similar mines.