论文部分内容阅读
桑树坪煤矿为解放主采高瓦斯3#煤层,将其下方平均层间距60.7 m的11#煤作为保护层进行开采。并利用2层煤之间的3314瓦斯抽放巷建立自动矿压观测系统,通过监测数据推算出3#煤底板附近测点在3105工作面开采后的下沉值。
In order to liberate main coal seam # 3 coal seam, the Sangshuping Mine mined 11 # coal with an average interval of 60.7 m below it as a protective layer. The automatic mine pressure observation system was established based on the 3314 gas drainage tunnel between two layers of coal and the sinking value of the measuring point near 3 # coal floor after mining at 3105 face was calculated by the monitoring data.