关键词: 露天金属矿, 事故树分析, 结构重要度

Abstract: The security system engineering was applied and the fault tree analysis method of metal mine blasting was introduced.The common accident cases were analyzed by the accident tree,and the blasting accident tree and the successful case tree were successfully drawn.Based on this,the minimum cut set and path set were found out,and finally the structure importance was analyzed so as to grasp the reason and the law of the accident.This can provide a scientific and reasonable basis for blasting design,implementation,and blasting safety management.Meanwhile,the blasting prevention measures and some technical measures to improve blasting effect were put forward to ensure blasting goal in metal mine.

Key words: Open metal mine, 　Fault tree analysis, Structure importance