麦垛山矿6<sup>＃</sup>煤上行开采可行性分析

麦垛山矿6^＃煤上行开采可行性分析

摘要: 为保证矿井安全投产，针对麦垛山矿主采2^＃煤上部存在的强含水层问题，采用理论计算分析确定2^＃煤开采后导水裂隙带高度均大于30 m，直接开采将会威胁矿井安全；而通过对下部6^＃煤的导水裂隙带高度计算可知，6^＃煤开采后不会造成矿井突水，仅在断层附近对上部煤层存在局部破坏，数值实验直观表明,先采6^＃煤不会破坏上部煤层，上行开采是可行的。
- 上行开采 /
- 导水裂隙带 /
- 数值试验 /
- 含水层 /
- 突水
Abstract: In order to ensure mine safety production, according to the problem of existing strong aquifer above 2^＃ main coal seam, theoretical calculation and analysis are applied to determine the height of water flowing fractured zone which are all greater than 30 me after mining 2^＃ coal, direct mining will threaten the safety of coal mine. While the height calculation of water flowing fractured zone shows that 6^＃ coal mining will not cause mine water inrush, there is only partial destruction to upper coal seam near the faults. Numerical experiment intuitively shows that 6^# coal mining will not destroy the upper coal seam. Upward mining is feasible.
- upward mining /
- water flowing fractured zone /
- numerical experiment /
- aguifer /
- water outburst

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