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 ?
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)
参考文献(References):
- 〔1〕张奇 ,杨永琦 ,王树仁 ,王仲琦 槽腔顶部爆破漏斗的作用范围 [J] 工程爆破 ,2 0 0 0 ,6( 1) :2 1~ 2 4
- 〔2〕张奇 ,杨永琦 分阶分段直眼掏槽 [J] 工程爆破 ,1997,3( 2 ) :13~ 17
- 〔3〕张奇 ,杨永琦 直眼掏槽爆破若干基本问题研究 [J] 煤炭学报 ,1997,2 2 ( 2 ) :130~ 135
- 〔4〕王仲琦 ,宁建国 ,赵衡阳 ,等 挡墙对远场爆炸效应影响的数值模拟研究 [J] 爆炸与冲击 ,2 0 0 0 ,( 1) :87~91
- 〔5〕冯圣中 混凝土侵彻与损伤的数值模拟及算法研究 [D] 北京理工大学 ,1997,63~ 67
- 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)
- 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)