The ground base of the newly added chute in 4＃ tailings reservoir at Dexing Copper Mine is characterised by thick weathered layer,loose structure,fractured zone and landslip mass accumulation.As a result,the ground has a great subsidence and inefficient c
The ground base of the newly added chute in 4＃ tailings reservoir at Dexing Copper Mine is characterised by thick weathered layer,loose structure,fractured zone and landslip mass accumulation.As a result,the ground has a great subsidence and inefficient c
潘洛铁矿主要使用的采矿方法是浅眼落矿的全面法和留矿全面法.23＃矿体160m以上矿段上部为氧化矿和风化岩层,形成挤压爆破和松散岩石覆盖下的放矿条件.介绍了无底柱分段崩落法在该矿体开采中的应用.实际使用获得的各项技术经济指标还比较理想.