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一九八○年我队在新田岭矿区施工巷道（平巷），用直眼掏槽爆破法取得了一些经验，炮眼利用率由60～70％逐步提高到90％以上，工程质量也比较好，巷道的掘进方向、掘进坡度和断面规格均符合设计要求和坑探工程施工的质量标准规定。现就怎样提高爆破效率的问题，谈谈我队的作法和体会。
In 1980, our team built some tunnels in the Xintianling mining area with a straight-line cut blasting method. The blasthole utilization rate gradually increased from 60% to 70% to over 90%, and the quality of the project was also compared Well, the roadway heading direction, heading and slope section specifications are in line with design requirements and pit construction quality standards. Now on how to improve the efficiency of blasting, talk about my team’s approach and experience.