8 m大采高临空巷超前支架应用与研究

Application and Research on Advance Support of 8 m Large Mining Height Empty Roadway

作为与工作面连接的上下巷,担负着重要的行人、通风和运输任务,其安全畅通显得尤为重要。大采高工作面的临空巷在实际开采过程中,受工作面侧向支撑压力和超前支撑压力叠加影响,导致巷道矿压显现远远大于非临空巷。在补连塔煤矿12510、12511、12512和12513工作面的大采高临空巷超前支护方案的实践中,对5种支护方案进行支护评价,并提出不同的适用条件。

As the upper and lower lanes connected with the working face, they are responsible for the important work of pedestrian, ventilation and transportation, and the safety and smoothness of them are particularly important. In the actual mining process of empty roadway in large mining height working face, the influence of lateral support pressure and advance support pressure of working face leads to the mine pressure manifestation of roadway far greater than that of non-empty roadway. In the practice of advance support schemes of 12510, 12511, 12512 and 12513 working faces in Bulianta coal mine, five support schemes were evaluated and different applicable conditions were put forward.