急倾斜近距离薄煤层群组露天开采研究

Study on Surface Mining of Steep Inclined Thin Seam Group with Close Distance

为了解决国内部分区域急倾斜、近距离、薄煤层选采困难、经济效益差等问题,结合具体矿区实际情况,提出了不同的开采方案,并对采煤方法进行了探究。结果表明,选用合理的开采方案及采煤方法能够显著地提高回采率和减少矸石混入,并有利于矿区生产的合理安排,提高经济效益。

In order to solve a selective mining difficulty and poor economic benefit of steep inclined thin seam group with close distance in some parts of China,in combination with actual conditions of the mining area,different mining plans were provided and a study was conducted on the coal mining method. The results showed that a rational selected mining plan and coal mining method could obviously improve the mining recovery ratio and reduce the coal rejects mixed in the raw coal and would be favorable to the rational production arrangement of the mining area and to improve the economic benefits.