复线隧道爆破振动信号的HHT分析
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摘要
结合现场采集到的爆破信号,从实践验证HHT(Hilbert-Huang Transform)理论在爆破振动信号处理中的可行性。首先采用经验模态分解(EMD)提取爆破振动信号的固有模态函数(IMF)分量,对主成分分量作Hilbert变换,提取其包络曲线,得到实际延时爆破中的延时时间。再对原始信号经EMD得到的IMF分量进行Hilbert变换,得到信号的Hilbert能量谱,并从瞬时能量的角度研究了爆破振动不同频率的能量作用机理。从而验证了HHT方法的自适应强和高效性在爆破振动信号分析中的优良特性。
Combined with the original signals from engineering field,the feasibility of HHT theory treating blasting vibration signal was demonstrated.First,the intrinsic mode function(IMF)was extracted by using the method of empirical mode decomposition(EMD),Hilbert transform was conducted to the main component,and the envelope curve of it was obtained,then the actual delay time was got during delay blasting process.Moreover,the Hilbert transformation was conducted to IMF components after original signal was carried out by EMD,then the Hilbert energy spectrum was obtained,the energy function mechanism in different frequency series was studied from the aspect of the instantaneous energy.Strong adaptivity and high efficiency of HHT theory in analyzing the blasting vibration signal were verified.
引文
[1]张义平,李夕兵.Hilbert Huang变换在爆破震动信号分析中的应用[J].中南大学学报(自然科学版),2005, 36(5):882-886.
    [2]Zhong Guosheng,Li Jiang,Zhao Kui.Structural Safety Criteria for Blasting Vibration Based on Wavelet Packet Energy Spectra[J].Mining Science and Technology (China),2011(21):35-39.
    [3]谭中盛,杨小林,王梦恕.复线隧道施工爆破对既有隧道的影响分析[J].岩石力学与工程学报,2003,22(2):283 -285.
    [4]刘金川,方向,冯伟涛.基于HHT方法的微差爆破延期时间识别与应用[J].山西建筑,2011,37(4),91-93.
    [5]冯仲仁,文曦.新建隧道爆破震动对既有隧道影响的数值模拟[J].爆破,2005,25(4):21-22.
    [6]凌同华,李夕兵,戴塔根,等.基于小波变换的微差爆破震动信号分离法[J].地下空间与工程学报,2006.2(3): 492-494.
    [7]王振宇,梁旭,陈银鲁,等.基于输入能量的爆破震动安全评价方法研究[J].岩石力学与工程学报.2010,29 (12):2493-2496.
    [8]Huang N E,Shen Z,Long S R.et al.The Empirical Mode Decomposition and the Hilbert Spectrum for Nonlinear and Nonstationary Time Series Analysis[J].Pro. Roy.Soc.London.A,1998,454:903-995.
    [9]陈占扬,杨溢,段永祥,等.某矿爆破震动信号的Hilbert -Huang分析[J].云南冶金,2010,39(1):19-22.
    [10]陈银鲁.爆破震动信号的能量分析方法及其应用研究[D].杭州:浙江大学,2010.
    [11]张义平,李夕兵,赵国彦,等.爆破震动信号的时频分析[J].岩土工程学报,2005,27(12):1473-1476.
    [12] Zhao J P,Huang D J.Mirror Extending and Circular ??Spline Function for Empirical Mode Decomposition Method and the Technology for Eliminating Frequency Mixing[J].High Technology Letter,2002,8(3):40- 47.
    [13]李彬.隧道开挖爆破地震波特性及其预测方法研究[D].青岛:山东科技大学,2004.
    [14]李夕兵,凌同华,张义平.爆破震动信号分析理论与技术[M].北京:科学出版社,2009.
    [15]Ray Chong Zhang.Application of Non-stationary,Nonlinear Data Processing and Analysis in Earthquake Engineering [C]//The Fourth International Conference on Nonlinear Mechanics,Aug.2002:721 -727.
    [16]张义平,李夕兵,左宇军.爆破振动信号的HHT分析与应用[M].北京:冶金工业出版社,2008.

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