一、掘进工作面的防尘现状 我国煤矿在传统的钻爆法掘进全岩工作面时,通常采用湿式凿岩、放炮喷雾、冲洗岩邦和装岩洒水、净化通风、个体防护等综合防尘措施。但各矿使用措施情况不一,有的各项措施同时使用,有的只采用其中几项。全国重点煤矿岩巷掘进基本实现了湿式凿岩,但半煤岩巷和煤巷掘进大部分矿是干打眼。根据16个重点局矿的调查资料分析,在 I. Status of Dust Prevention at Driving Face During the drilling and blasting of the whole rock face by traditional drilling and blasting methods, the dust prevention measures such as wet rock drilling, blasting spray, flushing rock and rock filling, purifying ventilation and individual protection are usually adopted by our country’s coal mines. . However, the use of various measures in different conditions, some of the measures used at the same time, and some only use some of them. The key rock excavation in key coal mines has basically realized the wet rock drilling, but most of the semi-coal rock tunnels and coal tunneling are drilled. According to the analysis of the survey data of 16 key mines, at