工程爆破

2000, (04) 9-13

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单自由面垂直炮孔爆炸作用的数值模拟
NUMERICAL SIMULATION ON EXPLOSION EFFECT OF CHARGES IN HOLES PERPENDICULAR TO A FREE SURFACE

王仲琦,张奇
WANG Zhong qi 1, ZHANG Qi 2 (1.Beijing Institute of Technology, Beijing 100081, China; 2.Xi'an University of Science and Technology, Xi'an 710054, China)

摘要(Abstract):

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.

关键词(KeyWords): 爆炸作用;数值模拟;爆破工程;sMMIC-2D
Explosion effect; Numerical simulation; Blasting Engineering; sMMIC ?

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金!资助项目 (5 99740 19)

作者(Authors): 王仲琦,张奇
WANG Zhong qi 1, ZHANG Qi 2 (1.Beijing Institute of Technology, Beijing 100081, China; 2.Xi'an University of Science and Technology, Xi'an 710054, China)

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