应用“三小”技术及中深孔爆破技术实现岩巷快速掘进

Apply "three small" technology and technology of middle-deep hole blasting to realize fast excavation in rock roadway

在岩巷掘进施工中,通过使用“三小”和“中深孔爆破”技术,峻德煤矿在2002年创造出了4个百米掘进队,而且成本材料均有所降低,效益可观,此项技术工艺值得进一步推广。

Drifting in rock roadway,through using the technology of 'three small'and middle-deep hole blasfing,Junde Coal Mine made four hundred-metre drifting teams, and dropped the cost material. The economic benefit is obviours. The technology process is worth spreading.