煤矿长壁采煤主动式超前支护关键技术及应用

Key Technology of Active Advance Support and Its Application in Longwall Coal Mining

目前,中国矿井主要采用关节顶梁、液压支撑等单一立柱的被动式超前支护方式,很难在矿区实现无人值守。故而以回采巷道为研究对象,研究其在掘进过程关键环节中的影响规律,揭示掘进过程对掘进速度的影响,探索二者之间的内在联系,以期能够降低掘进成本,提高巷道的掘进效率。

At present,China's mines mainly adopt the passive advanced support of single column such as joint roof beam and hydraulic support,which is difficult to achieve unattended in mining areas.Therefore,taking the mining roadway as the research object,its influence law in the key links of the excavation process was studied,the influence of the excavation process on the excavation speed was revealed,and the internal relationship between the two was explored,so as to reduce the excavation cost and improve the excavation efficiency of the roadway.