某金属矿巷道掘进爆破的掏槽孔布孔优化  

Optimization of Cutting Holes Layout for the Blasting of Roadway Excavation at a Certain Metal Mine

作　　者：宓铁良[1] 许梦国[1] 

机构地区：[1]武汉科技大学,湖北武汉430081

出　　处：《矿业研究与开发》2005年第3期81-83,共3页Mining Research and Development

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.

关 键 词：巷道掘进 契形掏槽 直线掏槽 炮孔布置 炮孔利用率 

分 类 号：TD235.42[矿业工程—矿井建设]