卜天宇,周海文,孙中富
BU Tian-yu,ZHOU Hai-wen,SUN Zhong-fu

• 1:国检集团安全环保研究院
• 2:中国非金属矿总公司
• 3:珠海兴地建设项目管理有限公司

摘要(Abstract)：

针对隧道爆破在初次应用数码电子雷管过程中,频发雷管爆炸而药卷残留炸药未爆的现象,通过对雷管尺寸、延时时间、人员以及环境因素的对比分析,发现雷管长度和延时时间为关键因素,于是提出采用起爆药包雷管居中、减小孔间延时、孔底反向起爆、密实连续装药等方法,促进爆轰产生和稳定传递,有效控制了药卷出现残药的情况。其对于使用同类型雷管的小直径药卷爆破具有普遍的参考意义。
Aiming at the phenomenon of tunnel blasting during the first application of digital electronic detonators, frequently the detonator exploded and the cartridge were not exploded. Through a comparative analysis of detonator dimension, delay time, operators, and environmental factors, it is found that the detonator length and hole to hole delay time are the key factors. Therefore, it is proposed to center detonator in cartridge, to reduce the delay time between holes, to initiate explosive with bottom reversed primer,to charge each cartridge closely. All the measures promoted detonation formation and stable propagation, and finally effectively controlled the occurrence of residual unexploded explosive in blasting. The analysis presents universal reference significance for the blasting of small-diameter cartridges using the same type of detonator.

关键词(KeyWords)： 隧道爆破;未爆残药;雷管长度;延时时间;爆轰产生
tunnel blasting;residual unexploded cartridge;detonator length;delay time;detonation formation

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 卜天宇,周海文,孙中富
BU Tian-yu,ZHOU Hai-wen,SUN Zhong-fu

参考文献(References)：

• [1] 张卅卅,王玉杰,任高峰,等.雷管爆炸杵体及射流传播规律安全性研究[J].中国安全科学学报.2014,24(2):47-51.ZHANG S S,WANG Y J,REN G F,et al.Safety study on propagation law of pestle and jet flow in detonator explosion based on high-speed photography[J].China Safety Science Journal,2014,24(2):47-51.
• [2] 余宗杰,关佳佳,吴红波,等.约束条件对乳化炸药爆速影响的实验研究[J].安徽化工.2019,45(3):21-23.YU Z J,GUAN J J,WU H B,et al.Experimental study on the influence of constraint condition on the detonation velocity of emulsion explosives[J].Anhui Chemical Industry,2019,45(3):21-23.
• [3] 张修玉,张义平,池恩安,等.某浅埋隧道爆破盲炮原因分析及预防措施[J].金属矿山,2012,41(1):33-35.ZHANG X Y,ZHANG Y P,CHI E A,et al.The reason analysis and preventive measure for miss fire in shallow covered tunnel blasting[J].Metal Mine,2012,41(1):33-35.
• [4] 王尹军,颜事留,李玉景,等.延期雷管的殉爆与抗冲击性能[J].工程爆破.2008,14(3):67-69,62.WANG Y J,YAN S L,LI Y J,et al.On sympathetic detonation and anti-shock wave performance of delay detonators[J].Engineering Blasting.2008,14(3):67-69,62.
• [5] 康永全,孟海利,薛里,等.浅埋隧道爆破施工电子雷管降振延时时间的分析[J].铁道建筑.2016,56(1):38-42.KANG Y Q,MENG H L,XUE L,et al.Analysis of electronic detonator delay time for vibration-reducing in blasting excavation of shallow-buried tunnel[J].Railway Engineering.2016,56(1):38-42.
• [6] 汪旭光.爆破设计与施工[M].北京:冶金工业出版社,2011.WANG X G.Blasting design and implementation [M].Beijing:Metallurgy Industry Press,2011.