数不清的狭窄空间意外造成了非常惨痛的人员伤亡,其根本的原因就在于相关人员未能清楚地认识到狭窄空间内部或邻近区域存在或潜伏的危险~([1]),或者狭窄空间本身并无重大危害,但未考虑到在狭窄空间内作业可能引起环境变化或引入与作业相关的新危害,使得狭窄空间成为一个又一个“安静的杀手”~([2])。狭窄空间的危险因素十分复 Countless narrow space accidents caused very traumatic casualties, the fundamental reason is that the relevant personnel failed to clearly recognize the danger of the existence or hidden within or adjacent to the narrow space ~ ([1]), or narrow space There is no major hazard per se, but no consideration is given that operations in confined spaces may cause environmental changes or introduce new operations-related hazards, making the confined space a succession of “quiet killers”. [2] Narrow space risk factors are complex