五龙金矿充填上部空区控制采场地压研究

CONTROL OF THE UNDEKGROUND PRESSURE AT WULONG GOLD MINE BY FILLING THE UPPER EMPTY ROOM

五龙金矿因采场上部存在着较大的空区，地压现象较为严重。采用充填空区的方案来控制地压，并应用弹塑性有限元方法对该方案进行了数值模拟。模拟结果表明，在充填情况下进行采矿，应力和塑性区均得到了改善。

A big mined-out space on the top of the ore site at Wulong Gold Mine has led to ahigh underground pressure. A method of filling the upper empty room was adopted and simulatedusing elasto-plastic finite element methods, The results showed that the filling method iseffective in improving the stress conditions and plastic zones.