摘要
爆破飞石是矿山爆破中的一大灾害,一直受到业界的普遍关注。借助量纲分析方法得出影响飞石初始速度的参量,统计矿山爆破数据资料,对参量进行线性回归分析,得到飞石的初始速度预测公式。通过物理力学原理求出爆破个别飞石的飞行规律和最大飞行距离,并以HML露天矿中深孔爆破为实例,推算出该矿中深孔爆破飞石安全距离的预测公式。
Blasting flying rock is a major disaster in mine blasting,the dimensional analysis method is used to obtain the parameters that influencing initial velocity of the stone. According to the statistical data of mining blasting,the flying stone velocity prediction formula is obtained by linear regression analyzing the parameters. Besides that,the flying rock＇s regular pattern and the maximum flight distance under certain circumstances are obtained based on the principle of physical mechanics. Combing with the example of medium-length hole basting in HML open-pit mine,the prediction formula of the blasting flying stone safety distance of medium-length hole is deduced.
出处
《现代矿业》
CAS
2014年第9期23-26,共4页
Modern Mining
关键词
露天矿山
爆破飞石
安全距离
物理力学
量纲分析
Open-pit mine
Blasting flying rock
Safety distance
Physical mechanics
Dimension-al analysis
