蒋家河矿高位钻孔合理层位研究

Determining of Reasonable Layer of High Borehole in Jiangjiahe Coal Mine

以蒋家河煤矿为研究对象,通过数值模拟,对抽采钻孔的卸压范围进行分析,最终确定卸压抽采钻孔终孔布置在裂隙带离层区抽采效果最好。将研究成果在工作面现场应用,抽采效果非常显著。利用高位钻孔抽采瓦斯在保障工作面的安全回采中起到了重要作用。

Taking Jiangjiahe coal mine as a research object, by numerical simulation analyzes the borehole pressure relief range, ultimately determines the relief borehole final holes are arranged in layers away from the fractured area drainage works best. The research results are used in field applications, the drainage effect is very significant. The use of high gas drainage drilling has played a crucial role in ensuring the safety of mining at face.