摘要
影响钻孔爆破振动速度的因素有许多,而萨氏公式仅仅反映了最大段装药量、爆心距与爆破振动速度的关系。通过某矿爆破振动监测,发现反映自由面方位角影响的爆破振动公式预测值较萨氏公式更加接近真实值,该比例达70%,说明自由面方位角对爆破振速的影响是明显的。
There are many factors influencing the drilling blasting vibration velocity,while Mr Samuelson formula merely reflects the large section of the explosive load,the relationship between pitch and blasting vibration velocity. Through mine blasting vibration monitoring,found that reflect the influence of free surface azimuth blasting vibration formula predicted the Mr Samuelson formula is more close to the real value,this proportion was 70%,and the free surface azimuth information of the influence of blasting vibration velocity is obvious.
出处
《煤炭技术》
CAS
北大核心
2015年第2期328-330,共3页
Coal Technology
关键词
爆破
自由面方位角
振动速度
blasting
free surface azimuth
vibration velocity
