贵州遵义长沟锰矿长壁采矿法高效爆破研究

Study on high efficiency blasting of longwall mining method in Changgou manganese mine, Zunyi, Guizhou

针对贵州遵义长沟锰矿在进行长壁采矿法时试验爆破效果不理想的情况,结合长沟锰矿特有的矿体赋存条件,从凿岩方式与机具、炮孔布置、装药方式与炸药选取以及起爆方式等方面,进行系统的改进与优选,从而达到对矿块现有爆破技术的大幅度提升。

In view of the unsatisfactory test blasting effect in longwall mining of Changgou manganese mine in Zunyi, Guizhou, and in combination with the unique ore body occurrence conditions of Changgou manganese mine, systematic improvement and optimization were carried out from the aspects of rock drilling mode and machinery, blast hole arrangement, charging mode and explosive selection, and initiation mode, so as to greatly improve the existing blasting technology of the ore block.