摘要
介绍了陕西大西沟铁矿基建剥离硐室爆破设计在不利的自然条件下,进行药室优化布置、爆破参数选择、确定多段微差起爆顺序等方面的内容;实现了一次爆破122万m3实方,抛掷率57%,有效地控制了飞石、震害和破坏范围。
In stripping work in Daxigou Iron Ore Mine, the conditions for blasting are unfavorable. Under these conditions, the work of optimizing explosive chamber, selection of blasting parameters and determining of detonation sequence of multi-stages short delay blasting has been done. Thus, an 1.22 Mm^1 volume blasting with a throwing rate of 57% is successfully realized by which the flying stones, vibration harm and impacting area are well limited.
出处
《矿业工程》
CAS
2006年第3期41-42,共2页
Mining Engineering
关键词
硐窜爆破
最小抵抗线
爆破网路
起爆顺序
chamber blasting
minimum resistance distance of hlasting
hlasting network: detonation sequence of blasting