济三矿综放面异常来压矿压实测研究

Experimental Study on Abnormal Pressure of Fully Mechanized Top Coal Caving Face in No.3 Coal Mine in Jining

通过对工作面初次放顶期间的矿压观测,掌握了工作面初次来压步距、来压强度、采场上覆岩层移动规律,对采空区的大面积悬顶的原因进行分析研究,指导了工作面的安全生产,对类似条件下的工作面具有重要指导意义。

Through underground pressure observation during the first caving working face, the first pressure step distance, compressive strength, stope roof overburden moving law are mastered, and this paper analyzes the causes of large area of goaf roof hanging research, which guides the safety production of working face, has important guiding signifcance for the work under similar conditions.