摘要
根据球形装药爆炸载荷作用下岩石破坏以后，碎块加速运动物理过程的数值模拟，给出岩石抛掷爆破抛掷初速度的确定方法，并讨论了岩石抛掷初速度的分布规律，以及抛掷初速度与炸药单耗的关系。对硐室抛掷爆破抛掷距离的计算和控制爆破飞石距离的确定具有一定意义。
The paper describes a method for determining the initial speed of throw blasting based on numerical modelling of the acceleration process of fragments after blasting using spherical charge. It discusses distribution rules of initial speed and the relation between initial speed and consumption of explosives per cubic meter. It can be used as guidelines for calculation of throw distance in chamber blasting and for determination of the distance of flying rocks in controlled blasting.
出处
《煤炭学报》
EI
CAS
CSCD
北大核心
1993年第5期27-32,共6页
Journal of China Coal Society
关键词
球形装药
岩石爆破
抛掷速度
模拟
spherical charge
rock blasting
throw speed
numerical modelling
