摘要
在岩巷爆破掘进的过程中,经常遇到欠挖的问题,欠挖影响巷道掘进的安全,同时也影响掘进的进度。根据地质条件和现场施工,分析了影响煤矿岩巷掘进爆破欠挖的因素,主要是断面的地质条件和爆破方案的设计两个方面;正确处理岩巷掘进爆破中欠挖的问题,可以提高生产安全性和掘进效率,对于岩巷掘进的设计和施工有积极意义。
Underbreak is a common problem in the process of rock drift excavation blasting.It influences the safety and speed of the tunnel excavation.According to the geological conditions and site operation,the factors which influence the underbreak in the rock drift excavation blasting in coalmine are analysed.The main two factors are geological conditions and design of blasting plan.Solving the problem of underbreak in a properly way in rock drift excavation blasting can improve the safety and efficiency.It also has positive significance for the design and construction in the tunnel excavation.
出处
《淮南职业技术学院学报》
2011年第4期17-18,共2页
Journal of Huainan Vocational Technical College
关键词
爆破掘进
欠挖
地质条件
现场施工
blasting tunneling
underbreak
geological conditions
site operation
