银山铅锌矿中深孔采矿爆破方法的探讨

Investigation of Blasting Method in Deephole Mining in Yinshan Lead-Zinc Mine

简述江西铜业公司银山铅锌矿井下采矿爆破概况及实际效果 ,指出其所用导爆索一次爆破方法存在的问题 ,分析孔口起爆法与孔底起爆法的爆破作用机理 ,并比较两种起爆法的优缺点 ,建议采用非电导爆管雷管分段微差 ,孔底起爆的爆破方案。

The underground mining blasting and its effectiveness in lead zinc mine of Jiangxi Copper Industry Co. are briefly summarized. The problem about using one through fuse firing is presented. The blasting mechanisms of collar priming and bottom priming are analyzed, also the advantages and disadvantages of two priming methods are compared. The results show that the program of nonel millisecond firing and bottom priming is feasible.