[1]李顺波①,杨军②,李长军③.基于精确延时的基坑开挖爆破振动控制研究[J].爆破器材,2015,44(06):9-14.[doi:10.3969/j.issn.1001-8352.2015.06.003]
　LI Shunbo,YANG Jun,LI Changjun.Control of Blasting Vibration in Foundation Pit Excavation Based on the Precise Time Delay[J].EXPLOSIVE MATERIALS,2015,44(06):9-14.[doi:10.3969/j.issn.1001-8352.2015.06.003]
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基于精确延时的基坑开挖爆破振动控制研究()
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《爆破器材》[ISSN:1001-8352/CN:32-1163/TJ]

卷:
44
期数:
2015年06
页码:
9-14
栏目:
基础理论
出版日期:
2015-12-03

文章信息/Info

Title:
Control of Blasting Vibration in Foundation Pit Excavation Based on the Precise Time Delay
文章编号:
4956
作者:
李顺波①; 杨军②; 李长军③
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）
③融硅思创（北京）科技有限公司（北京，100144）
Author(s):
LI Shunbo①;  YANG Jun②;  LI Changjun③
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)
③RGSC (Beijing) Technology Co., Ltd. (Beijing, 100144)
关键词:
爆破振动;  基坑开挖; 电子雷管; 精确延时
Keywords:
blasting vibration; foundation pit excavation;  electronic detonator;  precise time delay
分类号:
TD235.37；O382+.2
DOI:
10.3969/j.issn.1001-8352.2015.06.003
文献标志码:
A
摘要:
为了控制精确延时爆破时的爆破振动，基于弹性本波理论给出了合理的毫秒延时间隔时间计算公式，并结合基坑开挖工程，对现场实测信号进行分析。结果表明：孔内毫秒延时间隔为4 ms和孔间毫秒延时间隔为12 ms时的瞬时能量较小，利于爆破振动控制。短毫秒延时间隔能够实现爆破地震波能量大幅减小，并能优化爆破振动能量分布范围，趋向于高频方向发展。
Abstract:
In order to control the blasting vibration in precise time delay blast,the elastic wave based theory gives a reasonable formula of millisecond delay interval, which applied for the onsite measured signal analysis in combination with the excavation of foundation pit engineering. The results show that: the instantaneous energy is less when the millisecond delay- interval inside the holes is 4 ms and between the holes is 12 ms, which is advantageous to the vibration control of the blasting.Under short millisecond delay interval, the blasting seismic wave energy can be greatly reduced, and the blasting vibration energy distribution is optimized and tends to approach the high-frequency regions.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期：2015-04-10
作者简介：李顺波（1985~），男，博士，博士后研究人员，主要从事岩石爆破理论研究。E-mail：lshunbo@126.com
更新日期/Last Update: 2015-11-30