琅琊山铜矿床矿体比较分散,单个矿体面积大小不一,主要采用上向水平分层充填采矿法留矿法,但对于一些不规则的小矿体,采用上述采矿方法暴露出采准工程量大、采充循环时间长、需要投入的人力、物力大等缺点.为了更好、更快地回收不规则小矿体,以-365 m 中段21#7 矿体回采工艺为例,介绍一种优化的留矿法采矿方法,给类似小矿体回采提供经验.
Optimization Application of Shrinkage Method in Mining Irregular Small Ore Bodies
The ore bodies of the Langyashan copper deposit are relatively scattered,individual ore body areas vary in size,the main methods used are upward horizontal layered filling mining and shrinkage mining,however,for some irregular small ore bodies,the use of the above mining methods exposes drawbacks such as large amount of preliminary mining work,long mining and filling cycle time,the need to invest manpower,and large material resources.In order to better and faster recover irregular small ore bodies,this article introduces the mining process of-365 m middle section 21#7 ore body and provides an optimized shrinkage mining method,providing valuable experience for similar small ore body mining.
optimize the shrinkage methodpreliminary mininmining worklabor efficiencyvertical vertical projection
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