广西高峰矿业公司深部矿体采矿方法的改进

A Modification on the Mining Method for the Deep Orebody in Guangxi Gaofeng Mining Ltd

根据高峰矿业公司 1 0 0号矿体深部矿段的赋存特点和开采技术条件 ,提出了一种改进的采矿方法 ,即预控顶机械化分段充填采矿法。该方法沿矿体走向划分矿块 ,矿块内按 1 0m高的分段用上向中深孔爆破落矿 ,并且对分段拉底空间用喷浆或锚杆支护。该采矿法的采矿效率高 ,回采作业安全性好 ,简化了充填工序 。

Based on the occurrence characteristics and mining technological conditions of deep zone of the No.100 orebody in Gaofeng Mining Ltd., a modified mining method is proposed, that is, the Pre-Roof-Controlled Mechanized Sublevel Mining with Backfill. According to the method, blocks are divided along the strike of the orebody, and in a block, 10m high sublevels are fragmented through upward medium-length hole blasting. Undercutting is performed for each sublevel, and mined-out space is supported through grouting or bolts. The modified mining method offers high mining efficiency and excellent stoping safety performance, simplifies filling procedures and cuts operational cost.