摘要
为了考查无空孔直眼掏槽爆破参数 ,采用数值模拟方法研究单自由面垂直炮孔的爆炸作用问题。数值模拟结果表明 ,在堵塞条件一定时 ,单自由面垂直炮孔爆破漏斗与装药长度无关。对于本算例所选取的炮孔参数、装药参数和岩石参数 ,爆破漏斗深度约为1～ 2m ,是孔径的 2 5～ 5 0倍。
To investigate the parameters of parallel cut blast without empty holes, an advanced numerical method is used to study the explosion effect of charge in hole perpendicular to a free surface. The results indicate that there is no relationship between the explosion crater and the length of the charge under a certain stemming condition. Under the parameters on the hole, charge and rock used in this study, the depth of the blasting cone is about 1～2m which is 25～50 times of the hole diameter.
出处
《工程爆破》
2000年第4期9-13,共5页
Engineering Blasting
基金
国家自然科学基金资助项目(59974019)
关键词
爆炸作用
数值模拟
直眼掏槽爆破
垂直炮孔
Explosion effect
Numerical simulation
Blasting Engineering
sMMIC-2D
