摘要
对比了某金矿巷道掘进爆破楔形掏槽与直线掏槽的爆破效果,对比表明,直线掏槽优于楔形掏槽。对直线掏槽的炮孔布置进行了优化设计。现场试验表明,优化后的设计可降低炸药消耗量,提高掘进爆破进尺。
This paper compares the blasting effect of wedge-shaped cut with that of straight cut in excavating roadway at a certain metal mine. The results of comparison indicate the straight cut is good than wedge-shaped cut. The cutting holes layout for straight cutting has been optimized. The on-site experiments have shown that the explosive specific charge of blasting in excavating roadway is decreased but the advance per attack is increased.
出处
《矿业研究与开发》
CAS
北大核心
2005年第3期81-83,共3页
Mining Research and Development
关键词
巷道掘进
契形掏槽
直线掏槽
炮孔布置
炮孔利用率
Roadway excavation, Wedge-shaped cut, Straight cut, Hole layout, Utilization factor of hole
