无底柱分段崩落法悬顶处理技术探索

Exploration on the Treatment Technology of Suspended Roof in Pillarless Sublevel Caving

镜铁山矿根据多年的生产实践,在生产中不断探索,总结出了处理悬顶的成功技术,使非正规巷掘进量大幅度下降,矿石回采率进一步提高,为理顺矿山生产,稳定矿山生产规模,合理利用矿产资源,延长矿山服务年限做出了积极的尝试。

Based on the production practice of many years,Jingtieshan Iron Ore made a continuous exploration in production,and obtained the success of the technology in dealing with the suspended roof.Then the amount of non-formal roadway tunneling was dropped rapidly and the recovery rate of ore was further improved.It provided a positive trying in promoting the mine production,stabilizing the scale of production of the mine,rationally making use of mineral resources,and extending the service life of mine.