浅埋深薄基岩地表水体下厚煤层重复开采研究

Thick Coal Seam Repetition Mining under Open Waters with Thin Basement in Shallow

浅埋深薄基岩工作面导水裂缝带存在导通含水层及地表水的可能性,最终造成工作面突水的威胁。基于鄂尔多斯某矿实际地质采矿条件进行分析,对煤层开采的覆岩破坏高度进行预计,针对地表水体留设了防水煤岩柱,最终得出了地表水体下厚煤层重复开采的方案,并实现了工作面的安全开采,为鄂尔多斯地区解决类似条件下煤炭资源的回采提供了参考。

The possibility of working face water flowing fractured zone with thin basement in shallow could connected aquifer and surface water was large, then the working face would faced water inrush risk, on the basis geological and mining situation of one coal mine in Erdos district, the broken height of overburden that caused by mining was predicted, and then the water proof coal pillar was layout for surface water, the thick coal seam repetition mining scheme under the surface water was put forward, then mining working face safety realized, it references for coal resource mining with similar situation of Erdos district.