在煤矿井下巷道施工中,小孔径钻眼爆破方法已经逐渐普及,成为各个煤矿企业常用的巷道掘进方式。但在进行爆破的过程中,由于炸药的化学反应,生成了大量的有害物质,逸散到空气中,在巷道封闭狭小的空间内,容易导致浓度超标,威胁到施工人员的生命安全。本文针对这一情况,采用实地测试方式,研究巷道内CO浓度的变化规律,并以此为基础,提出了一些合理化的防治建议,为我国煤矿企业安全生产提供了一定的参考价值。 In the coal mine roadway construction, small borehole blasting method has been gradually popularized, becoming the common way of tunneling in various coal mining enterprises. However, during the process of blasting, due to the chemical reaction of explosives, a large amount of harmful substances are generated and escaped into the air. In confined narrow space of the roadway, the concentration is easily exceeded and the life safety of the construction workers is threatened. In view of this situation, this paper uses the field test method to study the variation law of CO concentration in the roadway. Based on this, some reasonable suggestions for prevention and control are put forward, which provide certain reference value for the coal mine production safety in our country.