浅析钻屑法在燕家河煤矿掘进中的应用

Application of the drilling cuttings method in the excavation of Yanjiahe coal mine

在分析了燕家河煤矿8~#煤层三采区皮带大巷掘进工作面地质条件及采掘特点的基础上,采用钻屑法对掘进工作面的冲击危险区域进行了监测。通过分析钻屑法的监测原理及判断准则,对三采区皮带大巷冲击危险性进行了实时监测。监测数据异常时,采用大孔径进行泄压,并对钻屑煤粉量及钻进过程进行了分析,明确了工作面无冲击危险性,确保安全生产。

Based on the analysis of the geological conditions of the driving face of belt main roadway in No.8 coal seam of Yanjiahe coal mine,the impact risk area of the driving face was monitored by the drilling cuttings method.Based on the monitoring principle and judgment criteria of the drilling cuttings method,the amount of drilling cuttings and drilling process were analyzed,and the non-impact risk of the working face was defined,which ensures the safety of production.