段数对爆破振动信号的时频特性影响分析
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摘要
为了研究段数对爆破振动信号时频特性的影响,首先将实测的单段信号利用Matlab7.0编制程序,分别选取10,20,30,40 ms为微差间隔进行叠加,获取了4种微差间隔下不同段数的爆破振动信号,然后利用AOK时频分布与小波分析相结合的方法,从质点振动速度峰值、总能量、主频、频带能量的角度进行了研究。结果表明:随着段数的增加爆破振动信号质点振动速度峰值与主频存在收敛性;总能量和主频的持续时间几乎呈线性增加;频带能量比向高频发展,频带能量的持续时间延长。研究成果可全面揭示段数对爆破振动信号时频特性的影响,并为从能量的角度进行抗振、降振的研究提供参考。
In order to study the influence of segments on time-frequency characteristics of blasting vibration signals,firstly,composed the millisecond intervals of 10,20,30,40 ms,using Matlab7.0 composite program,to obtain the blasting vibration signal with different segments in the 4 millisecond intervals;secondly,applied a combination of AOK distribution and wavelet analysis,studied from the view of particle vibration peak velocity,total energy,principal frequency and band energy.The results show that,along with the segments added,astringency is existed in particle vibration peak velocity and principal frequency of blasting vibration signal;the duration of total energy and principal frequency almost increase linearly;band energy ratio develops to high frequency;the duration of band energy is extension.The research results can overall reveal the influence of segments on time-frequency characteristics of blasting vibration signals.And provide analysis foundation to shakeproof and decreasing vibration study from the view of energy.
In order to study the influence of segments on time-frequency characteristics of blasting vibration signals,firstly,composed the millisecond intervals of 10,20,30,40 ms,using Matlab7.0 composite program,to obtain the blasting vibration signal with different segments in the 4 millisecond intervals;secondly,applied a combination of AOK distribution and wavelet analysis,studied from the view of particle vibration peak velocity,total energy,principal frequency and band energy.The results show that,along with the segments added,astringency is existed in particle vibration peak velocity and principal frequency of blasting vibration signal;the duration of total energy and principal frequency almost increase linearly;band energy ratio develops to high frequency;the duration of band energy is extension.The research results can overall reveal the influence of segments on time-frequency characteristics of blasting vibration signals.And provide analysis foundation to shakeproof and decreasing vibration study from the view of energy.
引文
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[12]飞思科技产品研发中心.Matlab辅助信号处理技术与应用[M].北京:电子工业出版社,2005.
[13]费鸿禄,马诺诺.坝基开挖爆破振动频带小波能量分析[J].爆破,2010,27(3):99-104.Fei Honglu,Ma Nuonuo.Wavelet energy analysis of blasting vibra-tion frequency band on dam foundation excavation[J].Blasting,2010,27(3):99-104.
[14]叶海旺,石文杰,王二猛.金堆城露天矿生产爆破合理微差时间的探讨[J].爆破,2010,27(1):96-99.Ye Haiwang,Shi Wenjie,Wang Ermeng,et al.Research of reasona-ble delay intervals in Jinduicheng open-pit mine[J].Blasting,2010,27(1):96-99.
[15]张义平,李宝山,王永明,等.基于Hilbert谱的爆破震动瞬时输入能量模型及计算[J].矿业研究与开发,2009,29(4):88-90.Zhang Yiping,Li Baoshan,Wang Yongming,et al.Model and calcu-lation of momentary input energy of blast-induced vibration basedon Hilbert spectrum[J].Mining Research and Development,2009,29(4):88-90.
[16]张志呈,张渝疆,李春晓.爆破地震波的频率特征及其影响因素[J].四川冶金,2005,27(1):1-5.Zhang Zhicheng,Zhang Yujiang,Li Chunxiao.Frequency propertiesof detonate earthquake wave and influence factors[J].SichuanMetallurgy,2005,27(1):1-5.
[17]史秀志,陈寿如.爆破振动信号时频特征的微差时间效应[J].湖南科技大学学报(自然科学版),2008,23(3):10-13.Shi Xiuzhi,Chen Shouru.Delay time interval effect for the time-fre-quency characteristic of blast vibration signal[J].Journal of HunanUniversity of Science&Technology(Natural Science Edition),2008,23(3):10-13.
[18]唐飞勇,王意堂,梁开水.爆破振动信号特征分析的应用探讨[J].爆破,2010,28(4):109-111.Tang Feiyong,Wang Yitang,Liang Kaishui.Characteristics analysisof blasting vibration signals of open pit[J].Blasting,2010,28(4):109-111.
[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 Mingsheng,Zhang Jianhua,Yi Changping.Time-frequencyanalysis based on single-stage addition of waveforms of blasting vi-bration signals[J].Journal of China Coal Society,2010,35(8):1279-1282.
[3]史秀志,陈寿如.爆破振动时频特征的段药量及抵抗线效应[J].煤炭学报,2009,34(3):345-349.Shi Xiuzhi,Chen Shouru.Explosive blasted per delay and burdeneffects on the time-frequency characteristic of vibration induced byblast[J].Journal of China Coal Society,2009,34(3):345-349.
[4]陈寿如,李雁翎,谢圣权.露天采场台阶干扰降震爆破技术试验研究[J].湖南科技大学学报(自然科学版),2004,19(2):10-13.Chen Shouru,Li Yanling,Xie Shengquan.Experimental study ofblasting vibration reduction by waveform interference in an openstope[J].Journal of Hunan University of Science&Technology(Natural Science Edition),2004,19(2):10-13.
[5]宋光明,曾新吾,陈寿如,等.基于波形预测小波包分析模型的降振微差的时间选择[J].爆炸与冲击,2003,23(2):163-168.Song Guangming,Zeng Xinwu,Chen Shouru,et al.The selection ofmillisecond delay interval of blasting for decreasing ground vibrationbased on the wavelet packets prediction model of waveforms[J].Ex-plosion and Shock Waves,2003,23(2):163-168.
[6]毕明芽,李名山,刘朝红,等.爆破振动预测误差的因素分析[J].爆破,2009,26(2):96-98.Bi Mingya,Li Mingshan,Liu Chaohong,et al.Analysis of forecastingerror for blasting vibration[J].Blasting,2009,26(2):96-98.
[7]张丹.爆源因素对爆破地震强度分布特征的试验研究[D].成都:西南交通大学,2007.
[8]冯万慧.大型土石方爆破无限分段起爆网路技术研究[J].工程爆破,2009,15(1):38-40.Feng Wanhui.Research on infinite division detonating technology oflarge-scale rock blasting[J].Engineering Blasting,2009,15(1):38-40.
[9]中国生,敖丽萍,赵奎.基于小波包能量谱爆炸参量对爆破振动信号能量分布的影响[J].爆炸与冲击,2009,26(3):300-305.Zhong Guosheng,Ao Liping,Zhao Kui.Influence of explosion param-eters on energy distribution of blasting vibration signal based onwavelet packet energy spectrum[J].Explosion and Shock Waves,2009,26(3):300-305.
[10]刘喜武,张宁,勾永峰,等.地震勘探信号时频分析方法对比与应用分析[J].地球物理学进展,2008,23(3):743-753.Liu Xiwu,Zhang Ning,Gou Yongfeng,et al.The comparison andapplication of time-frequency analysis methods to seismic signal[J].Progress in Geophysics,2008,23(3):743-753.
[11]王晓凯,高静怀,何洋洋.基于时频自适应最优核的时频分析方法[J].系统工程与电子技术,2010,32(1):22-26.Wang Xiaokai,Gao Jinghuai,He Yangyang.Time-frequency analy-sis based on time-frequency-adaptive optimal-kernel[J].SystemsEngineering and Electronics,2010,32(1):22-26.
[12]飞思科技产品研发中心.Matlab辅助信号处理技术与应用[M].北京:电子工业出版社,2005.
[13]费鸿禄,马诺诺.坝基开挖爆破振动频带小波能量分析[J].爆破,2010,27(3):99-104.Fei Honglu,Ma Nuonuo.Wavelet energy analysis of blasting vibra-tion frequency band on dam foundation excavation[J].Blasting,2010,27(3):99-104.
[14]叶海旺,石文杰,王二猛.金堆城露天矿生产爆破合理微差时间的探讨[J].爆破,2010,27(1):96-99.Ye Haiwang,Shi Wenjie,Wang Ermeng,et al.Research of reasona-ble delay intervals in Jinduicheng open-pit mine[J].Blasting,2010,27(1):96-99.
[15]张义平,李宝山,王永明,等.基于Hilbert谱的爆破震动瞬时输入能量模型及计算[J].矿业研究与开发,2009,29(4):88-90.Zhang Yiping,Li Baoshan,Wang Yongming,et al.Model and calcu-lation of momentary input energy of blast-induced vibration basedon Hilbert spectrum[J].Mining Research and Development,2009,29(4):88-90.
[16]张志呈,张渝疆,李春晓.爆破地震波的频率特征及其影响因素[J].四川冶金,2005,27(1):1-5.Zhang Zhicheng,Zhang Yujiang,Li Chunxiao.Frequency propertiesof detonate earthquake wave and influence factors[J].SichuanMetallurgy,2005,27(1):1-5.
[17]史秀志,陈寿如.爆破振动信号时频特征的微差时间效应[J].湖南科技大学学报(自然科学版),2008,23(3):10-13.Shi Xiuzhi,Chen Shouru.Delay time interval effect for the time-fre-quency characteristic of blast vibration signal[J].Journal of HunanUniversity of Science&Technology(Natural Science Edition),2008,23(3):10-13.
[18]唐飞勇,王意堂,梁开水.爆破振动信号特征分析的应用探讨[J].爆破,2010,28(4):109-111.Tang Feiyong,Wang Yitang,Liang Kaishui.Characteristics analysisof blasting vibration signals of open pit[J].Blasting,2010,28(4):109-111.
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