摘要
拉槽爆破技术是无底柱分段空场法采矿的重要工艺之一。目前通用的拉槽方法是利用已经形成的切割工程,在切巷中布置垂直中深孔逐排爆破形成切槽。但由于受到施工方法和安全条件的限制,竖向切割工程无法施工时,致使拉槽困难或拉槽质量不易保证。而中深孔拉槽避免了竖向切割工程的施工,是一种简便、安全、可靠的拉槽方法,值得在类似矿山生产中推广应用。
Slot blasting is an important technology of sublevel open sloping without sill pillar.The commonly used method is using finished cutting engineering and arranging vertical holes in the cutting road and bench blasting to form the slot.Because of the limitation of construction method and safety conditions,drawing slot is difficult and the slot quality can not be ensured when the vertical cutting engineering can not be conducted.The medium-length hole slot avoided the vertical cutting engineering,and it is a simple and safe method.The technology is worth popularizing in similar mines.
出处
《中国矿山工程》
2016年第2期44-47,共4页
China Mine Engineering
关键词
上向中深孔
拉槽爆破
MSG铁矿
应用
upward medium-length hole
slot blasting
MSG Iron Mine
application
