Probability analysis for influence of time-delay error of detonators on superposed seismic wave vibration reduction

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Journal of Vibration and Shock ›› 2019, Vol. 38 ›› Issue (3) : 96-101.

HAN Liang1， LI Hongjiang2， LIU Dianshu3， LING Tianlong3， LI Chen3， LIANG Shufeng3

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Abstract

Based on measured single-hole waveforms at points with different distances, vibration velocity amplitude variations of superposed signals with variation of distance were obtained by using the method of 1ms equal interval double-segment superposition, and the optimal delay time at each measured point was determined.Considering time-delay error of detonators, a probability model was established to quantitatively analyze influence of time-delay error of detonators on seismic wave interference vibration reduction.The results showed that at the measured point with near distance, low segment location detonator has a larger vibration reduction probability, while at the measured point with far distance, high segment location detonator has a larger vibration reduction probability; the distance of the measured point more largely affects the vibration reduction probability of low segment location detonator, but it affects that of high segment location detonator less; in the actual blasting design, the detonator segment number at the blast source can be chosen optimally according to the allowable maximum vibration velocity at different measured points to provide a useful reference for the blasting design.

Key words

Detonator / Delay error / Waveform superposition / Interference vibration reduction / Probability

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HAN Liang1， LI Hongjiang2， LIU Dianshu3， LING Tianlong3， LI Chen3， LIANG Shufeng3. Probability analysis for influence of time-delay error of detonators on superposed seismic wave vibration reduction[J]. Journal of Vibration and Shock, 2019, 38(3): 96-101

References

[1] Wheeler R.M. Controlling blast vibration effects with on-site analysis of single hole signatures “A new approach”.Proc.5th symp. On explosive and blasting research, 123-134,1989
[2] 赵明生,张建华,易长平. 基于单段波形叠加的爆破振动信号时频分析[J].煤炭学报,2010, 35(8):1279~1282
Zhao Ming-sheng, Zhang Jian-hua, Yi Chang-ping. Time-frequency analysis based on single-stage addition of waveforms of blasting vibration signals[J]. Journal of China Coal Society, 2010, 35(8):1279~1282
[3] 陈士海,燕永峰,戚桂峰,等. 微差爆破降震效果影响因素分析[J].岩土力学,2011,32(10):3003~3008.
Chen-Shi-hai, Yan Yong-feng, Qi Gui-feng, et al. Analysis of influence factors of interference vibration reduction of millisecond blasting[J]. Rock and Soil Mechanics, 2011,32(10):3003~3008.
[4] 邱贤阳,史秀志,周健,黄丹,陈新. 基于HHT能量谱的高精度雷管短微差爆破降振效果分析[J].爆炸与冲击, 2017, 37(1):107~113.
Qiu Xian-yang, Shi-Xiuzhi, Zhou Jian, et al. On vibration reduction effect of short millisecond blasting by high-precision detonator based on HHT energy spectrum[J]. Explosion and Shock Waves, 2017, 37(1):107~113.
[5] 杨年华. 应用电子雷管进行干扰降振爆破试验研究[J].工程爆破,2013,19(6): 41~45
Yang Nian-hua. Blasting experimental study on vibration reduction through interference waveform caused by electronic detonator[J]. Engineering Blasting, 2013,19(6): 41~45
[6] 高文学,杨军,肖鹏飞,等. 基于精确延期的深孔控制爆破技术[J].煤炭学报,2011, 36(S2):386~390.
Gao Wen-xue, Yang Jun, Xiao Peng-fei, et al. Deep-hole controlled blasting technology based on precise time delay[J]. Journal of China Coal Society, 2011, 36(S2):386~390.
[7] 何理,钟冬望,王文波. 精确延时控制爆破试验及振动信号分析[J].爆破, 2015, 32(2): 22~28.
He Li, Zhong Dong-wang, Wang Wen-bo. Controlled Blasting Test with Precise Delay Timeand Analysis of Blasting Vibration Signals[J]. Blasting, 2015, 32(2): 22~28.
[8] 凌同华,李夕兵,王桂尧. 爆破震动灾害主动控制方法研究[J].岩土力学, 2007, 28(7): 1439~1442.
Ling Tong-hua, Li Xi-bing, Wang Gui-yao. A study on initiative control of blast vibration damages[J]. Rock and Soil Mechanics, 2007, 28(7): 1439~1442.
[9] 姚尧,李鹏,王键. 非电毫秒雷管延时特性[J].爆破, 2000, 17(Suppl.1): 256~261.
Yao Yao, Li Peng, Wang Jian. The Delay Characteristics of Nonel Mill isecond Detonator[J]. Blasting, 2000, 17(Suppl.1): 256~261.
[10] 韩亮. 深孔台阶爆破近区振动效应的试验研究[D].北京:中国矿业大学(北京), 2016:95~96.
[11] Anderson D. A. et al. Amethod site-specific prediction and control of ground vibration from blasting. Proc.1st Symp. On explosives and blasting research, 28-42, 1985.
[12] K. G. Hizen. Modelling of Blast Vibrations[J].Rock Mech. Min. Sci. &Geomech, 1988, 25(6): 439-445.