弓长岭井下矿中央区延深采矿方法的选择

Selection of deepening mining method in center zone of Gongchangling Underground Mine

通过几种地下采矿方法的对比分析,证实弓长岭井下矿中央区延深开采选择无底柱分段崩落采矿法是合理的,可实现350万t/a的生产目标。

On the basis of comparison between several mining methods, the pillarless sublevel caving is finally chosen as most reasonable method for deepening mining in center zone of Gongchangling Underground Mine. By means of the method, the expected mining capacity of 3.5Mt/a is ensured.