[1]李顺波①,杨仁树①,杨军②.精确延时对台阶爆破岩石破碎块度影响的数值模拟研究[J].爆破器材,2016,45(03):11-16.[doi:10.3969/j.issn.1001-8352.2016.03.003]
 LI Shunbo,YANG Renshu,YANG Jun.Numerical Simulation of the Impact of Precise Time Delay on Rock Fragmentation in Bench Blasting[J].EXPLOSIVE MATERIALS,2016,45(03):11-16.[doi:10.3969/j.issn.1001-8352.2016.03.003]
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精确延时对台阶爆破岩石破碎块度影响的数值模拟研究()
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《爆破器材》[ISSN:1001-8352/CN:32-1163/TJ]

卷:
45
期数:
2016年03
页码:
11-16
栏目:
基础理论
出版日期:
2016-05-13

文章信息/Info

Title:
Numerical Simulation of the Impact of Precise Time Delay on Rock Fragmentation in Bench Blasting
文章编号:
5036
作者:
李顺波杨仁树杨军
①中国矿业大学(北京)力学与建筑工程学院(北京,100083) 
② 北京理工大学爆炸科学与技术国家重点实验室(北京,100081)
Author(s):
LI Shunbo YANG RenshuYANG Jun
①School of Mechanic & Civil Engineering, China University of Mining & Technology (Beijing) (Beijing, 100083)
②State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology (Beijing, 100081)
关键词:
岩石破碎精确延时数值模拟
Keywords:
rock fragmentation precise time delay numerical simulation
分类号:
TD853
DOI:
10.3969/j.issn.1001-8352.2016.03.003
文献标志码:
A
摘要:
为了研究精确延时间隔对岩石破碎的影响,利用有限元软件就不同延时间隔条件对岩石破碎的影响进行了数值模拟研究。研究结果表明:合理设定延时间隔利于台阶顶部岩石破碎块度控制,同时能够改善岩石破碎块度分布情况。通过爆生气体和应力波关系的分析,计算得出的延时间隔和数值模拟结果较为接近;在本次数值模拟中,延时间隔6 ms、抵抗线3 m,即延时间隔和抵抗线关系为2 ms/m情况下有利于岩石破碎。
Abstract:
In order to study effects of the precise time delay interval on rock fragmentation, the finite element software was used to simulate the rock fragmentation under different time delay intervals. The results show that the reasonable delay time setting is advantageous to control the rock fragmentation on top, and can improve the fragmentation distribution of rock. Through the analysis of the relationship between stress wave and detonation gas, it is found that the results of delay interval time is close to those of numerical simulation. The delay time interval is 6 ms,and the resistance line is 3 m. And when the relationship between delay time interval and resistance is 2 ms/m, it is conducive to the rock fragmentation under this numerical simulation.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2015-10-27
作者简介:李顺波(1985-),男,博士,中国矿业大学(北京)博士后流动站从事岩石爆破理论方面的工作。E-mail:lshunbo@126.com
更新日期/Last Update: 2016-05-13