厚煤层开采覆岩“三带”的高度确定

Determination of the Height of the"Three Zones"of Overlying Rock in Thick Coal Seam Mining

为了确保豹子沟煤业工作面的安全回采,以10109工作面为工程背景,对其上覆岩层“三带”发育特征进行研究。首先对“三带”高度及范围影响因素进行分析,采用理论计算和现场观测的方式得到了“三带”的发育高度,两种方式所测发育高度基本吻合,研究结果对保障豹子沟煤业其他工作面安全生产提供了理论依据。

In order to ensure the safe mining of the Baozigou coal mining face,taking the 10109 working face as the engineering background,the development characteristics of the"three zones"of the overlying rock strata were studied.Firstly,the factors affecting the height and scope of the"three zones"were analyzed.The development height of the"three zones"was obtained through theoretical calculation and on-site observation.The development height measured by the two methods was basically consistent.The research results provide a theoretical basis for ensuring the safe production of other working faces in the Baozigou coal mining industry.