石板坑石灰石矿阶段束状孔落矿连续开采新技术探讨

The Discussion about The New Continuous Mining Technology with Cluster Drilling Holes at Shibankeng Limestone Mines

地下矿山阶段束状孔落矿连续开采新技术主要应用的是束状孔当量球形药包大量落矿采矿技术和矿岩诱导崩落技术,再合理安排采矿工序、采场回采顺序来实现地下连续开采、高强度集中采矿。基于石板坑水泥用石灰石矿床条件,对该地下矿山阶段束状孔落矿连续开采新技术的开采技术条件进行分析,同时,与原分段矿房采矿法进行技术经济对比分析,认为阶段束状孔落矿连续开采新技术可适用于Ⅰ类水泥用石灰石矿床和岩溶不发育的Ⅱ类水泥用石灰石矿床,同时指出该开采技术的关键工艺和要点。

The new continuous mining technology with cluster drilling holes at underground mines was applied with the huge ore caving technology with spherical explosive cartridges and cluster drilling holes,the technology of derivational roof caving,and then used the reasonable mining process and the reasonable stope mining order to achieve continuous and efficient mining.Based on the deposit conditions of Shibankeng Limestone Mines,this paper analyzed the mining technology conditions of the new continuous mining technology with cluster drilling holes at this underground mines,besides,compared and analyzed with the subsection mining method in technology and economy.It is believed that the new mining technology can be applied to classІcement limestone deposits and classПcement limestone deposits with undeveloped karsts.At the same time,we can get the key technique and points of the technology based on our analyzing.