桂北某铀矿采矿方法的优化改进

Optimization and improvement of mining method for a northern Guangxi uranium mine

针对桂北某铀矿在采用分层分段进路法回采矿体时存在的采场通风效果差、采掘原材料消耗较大等问题,根据矿体赋存条件,对回采方法做了优化改进,即采用上向水平分层干式充填法回采矿体。实践表明,采场平均生产能力比原回采方法提高了15t/d,原材料消耗有所下降,采场本质安全度明显提高。

Aimed at the problems of poor ventilation effect of stope and high consumption of raw mate- rial in digging process in a northern Guangxi uranium mine by using slicing-and sublevel drift stoping method, and according to ore body occurrence condition, optimization and improvement were made for ore winning technology, and toward horizontal slice cut-and filling stopping method was used to min- ing ore body. Practice indicates that average productive capacity of stope is increased by 15 t/d com- pared with original stopping method, raw material consumption is reduced and intrinsic safety at stope is obviously enhanced.