地雷埋藏深度对声波激发的地表振动影响的实验研究
|
摘要
构建实验系统,研究地雷埋藏深度对声波激发的地表振动的影响。首先,简述声-地震耦合及其在地雷探测应用中的基本原理;其次,描述声波探雷实验系统及实验方案;最后,检测在没有埋藏物以及地雷埋藏深度在9 cm、11 cm和13 cm时声波激发的地表振动速度的幅频特性曲线。实验结果显示,有雷和无雷的地表振动速度比值的幅频特性曲线在120、210、420、450、550Hz存在明显大于1的极大值点,显示出土壤-地雷系统多模态共振的特征,而且共振强度随着埋藏深度的增加而减弱。
An experimental system is presented to investigate the influence of the mine burial depth on the acoustically induced ground vibration.Firstly,the mechanism of acoustic-to-seismic coupling is overviewed together with its application in buried mines detection.Then,the experimental system and scheme for acoustic mine detection are described.Finally,the amplitude-frequency characteristic curves of the ground vibration velocity are plotted for nothing buried and for mine buried at the depth of 9 cm,11cm and 13 cm respectively.The results indicate that the amplitude-frequency curves of the ratios of the ground vibration velocities with to without mine have maximal values greater than 1 at 120 Hz,210 Hz,420 Hz,450 Hz and 550 Hz respectively,which reveal the characteristic of multi-modal resonance,however,the characteristic becomes weak as the mine burial depth increases.
An experimental system is presented to investigate the influence of the mine burial depth on the acoustically induced ground vibration.Firstly,the mechanism of acoustic-to-seismic coupling is overviewed together with its application in buried mines detection.Then,the experimental system and scheme for acoustic mine detection are described.Finally,the amplitude-frequency characteristic curves of the ground vibration velocity are plotted for nothing buried and for mine buried at the depth of 9 cm,11cm and 13 cm respectively.The results indicate that the amplitude-frequency curves of the ratios of the ground vibration velocities with to without mine have maximal values greater than 1 at 120 Hz,210 Hz,420 Hz,450 Hz and 550 Hz respectively,which reveal the characteristic of multi-modal resonance,however,the characteristic becomes weak as the mine burial depth increases.
引文
[1]Biot M A.Theory of propagation of elastic waves in a fluid-saturated porous solid.I.Low-frequency range[J].J.Acoust.Soc.Am.,1956,28(2):168-178.
[2]Biot M A.Theory of propagation of elastic waves in a fluid-saturated porous solid.II.Higher-frequency range[J].J.Acoust.Soc.Am.,1956,28(2):179-191.
[3]Sabatier J M,Bass H E,Bolen L N.Acoustically induced seismic waves[J].J.Acoust.Soc.Am.,1986,80(2):646-649.
[4]Bass H E,Bolen L N,Cress D,et al.Coupling of airborne sound into the earth:Frequency dependence[J].J.Acoust.Soc.Amer.,1980,67:1502-1506
[5]Sabatier J M,Bass H E,Bolen L N.The interaction of airborne sound with the porous ground:The theoretical formulation[J].J.Acoust.Soc.Am.,1986,79(5):1345-1352.
[6]Sabatier J M,Xiang N.An investigation of acoustic-to-seismic coupling to detect buried antitank landmines[J].IEEE Transactions on Geoscience and Remote Sensing,2001,39(6):1146-1154.
[7]Xiang N,Sabatier J M.An experimental study on antipersonnel landmine detection using acoustic to seismic coupling[J].J.Acoust.Soc.Am.,2003,113(3):1333-1341.
[8]Donskoy D,Reznik A,Zagrai A,et al.Nonlinear vibrations of buried land mines[J].J.Acoust.Soc.Am.2005,117(2):690-700.
[9]Donskoy D.Nonlinear seismo-acoustic landmine detection[J].J.Acoust.Soc.Am.,2008,123(5):3042-3043.
[10]Zagrai A,Donskoy D,Ekimov A.Structural vibrations of buried land mines[J].J.Acoust.Soc.Am.,2005,118(6):3619-3628.
[11]王驰,李醒飞,付娟,等.声波探雷及其信号处理方法[J].光学精密工程,2008,16(9):1716-1721.WANG Chi,LI Xingfei,FU Juan,et al.Acoustic landmine detection and its signal processing method[J].Optics and Precision Engineering,2008,16(9):1716-1721.
[12]王驰,刘志刚,李醒飞,等.基于相对声-地震耦合率的声波探雷技术[J].天津大学学报,2008,41(6):745-750.WANG Chi,LIU Zhigang,LI Xingfei,et al.Technology for acoustic landmine detection based on relative acoustic-to-seismic coupling ratio[J].Journal of Tianjin University,2008,41(6):745-750.
[13]王驰,刘志刚,李醒飞,等.声-地震耦合探雷技术分析,声学学报,2008,33(4):354-359.WANG Chi,LIU Zhigang,LI Xingfei,et al.Analysis of acoustic to seismic coupling technique for buried landmines detection[J].Acta Acustica,2008,33(4):354-359.
[14]王驰,于瀛洁,李醒飞,等.土壤-地雷共振系统模型解析[J].物理学报,2010,59(9):6319-6325.WANG Chi.,LI Xingfei,YU Yingjie,et al.Analysis of soil-mine resonance model[J].Acta Physica Sinica,2010,59(9):6319-6325.
[15]王驰,于瀛洁,李醒飞.一种基于声-地震耦合的室内声波探雷实验系统[J].天津大学学报,2011,44(1):79-84.WANG Chi,YU Yingjie,LI Xingfei.An acoustic-to-seismic coupling based landmines detection system in lab-scale experimental environment[J].Journal of Tianjin University,2011,44(1):79-84.
[16]杨顶辉.双相各向异性介质中弹性波方程的有限元解法及波场模拟[J].地球物理学报,2002,45(4):575-583.YANG Dinghui.Finite element method of the elastic wave equation and wavefield simulation in two-phase anisotropic media[J].Chinese J Geop Hys,2002,45(4):575-583.
[17]裴正林.三维双相各向异性介质弹性波方程交错网格高阶有限差分法模拟[J].中国石油大学学报:自然科学版,2006,30(2):16-20.PEI Zhenglin.A staggered-grid high-order finite difference method for modeling elastic wave equation in 3-D dual-phase anisotropic media[J].Journal of the University of Petroleum,China:Edition of Natural Science,2006,30(2):16-20.
[18]孟庆生,何樵登,朱建伟,等.基于BISQ模型双相各向同性介质中地震波数值模拟[J].吉林大学学报:地球科学版,2003,33(2):217-221.MENG Qingsheng,HE Qiaodeng,ZHU Jianwei,et al.Seismic modeling in isotropic porous media based on BISQ model[J].Journal of Jilin University:Earth Science Edition,2003,33(2):217-221.
[19]Sabatier J M,Xiang N.Laser-Doppler based acoustic-to-seismic detection of buried mines[C]//Dubey A.C.ed.Conference on Detection and Remediation Technologies for Mines and Minelike Targets IV,Proc.SPIE 3710,1999:215-222.
[20]Robert W H,Kenneth D R.Standoff acoustic laser technique to locate buried land mines[J].Lincoln Laboratory Journal,2005,15(1):3-22.
[2]Biot M A.Theory of propagation of elastic waves in a fluid-saturated porous solid.II.Higher-frequency range[J].J.Acoust.Soc.Am.,1956,28(2):179-191.
[3]Sabatier J M,Bass H E,Bolen L N.Acoustically induced seismic waves[J].J.Acoust.Soc.Am.,1986,80(2):646-649.
[4]Bass H E,Bolen L N,Cress D,et al.Coupling of airborne sound into the earth:Frequency dependence[J].J.Acoust.Soc.Amer.,1980,67:1502-1506
[5]Sabatier J M,Bass H E,Bolen L N.The interaction of airborne sound with the porous ground:The theoretical formulation[J].J.Acoust.Soc.Am.,1986,79(5):1345-1352.
[6]Sabatier J M,Xiang N.An investigation of acoustic-to-seismic coupling to detect buried antitank landmines[J].IEEE Transactions on Geoscience and Remote Sensing,2001,39(6):1146-1154.
[7]Xiang N,Sabatier J M.An experimental study on antipersonnel landmine detection using acoustic to seismic coupling[J].J.Acoust.Soc.Am.,2003,113(3):1333-1341.
[8]Donskoy D,Reznik A,Zagrai A,et al.Nonlinear vibrations of buried land mines[J].J.Acoust.Soc.Am.2005,117(2):690-700.
[9]Donskoy D.Nonlinear seismo-acoustic landmine detection[J].J.Acoust.Soc.Am.,2008,123(5):3042-3043.
[10]Zagrai A,Donskoy D,Ekimov A.Structural vibrations of buried land mines[J].J.Acoust.Soc.Am.,2005,118(6):3619-3628.
[11]王驰,李醒飞,付娟,等.声波探雷及其信号处理方法[J].光学精密工程,2008,16(9):1716-1721.WANG Chi,LI Xingfei,FU Juan,et al.Acoustic landmine detection and its signal processing method[J].Optics and Precision Engineering,2008,16(9):1716-1721.
[12]王驰,刘志刚,李醒飞,等.基于相对声-地震耦合率的声波探雷技术[J].天津大学学报,2008,41(6):745-750.WANG Chi,LIU Zhigang,LI Xingfei,et al.Technology for acoustic landmine detection based on relative acoustic-to-seismic coupling ratio[J].Journal of Tianjin University,2008,41(6):745-750.
[13]王驰,刘志刚,李醒飞,等.声-地震耦合探雷技术分析,声学学报,2008,33(4):354-359.WANG Chi,LIU Zhigang,LI Xingfei,et al.Analysis of acoustic to seismic coupling technique for buried landmines detection[J].Acta Acustica,2008,33(4):354-359.
[14]王驰,于瀛洁,李醒飞,等.土壤-地雷共振系统模型解析[J].物理学报,2010,59(9):6319-6325.WANG Chi.,LI Xingfei,YU Yingjie,et al.Analysis of soil-mine resonance model[J].Acta Physica Sinica,2010,59(9):6319-6325.
[15]王驰,于瀛洁,李醒飞.一种基于声-地震耦合的室内声波探雷实验系统[J].天津大学学报,2011,44(1):79-84.WANG Chi,YU Yingjie,LI Xingfei.An acoustic-to-seismic coupling based landmines detection system in lab-scale experimental environment[J].Journal of Tianjin University,2011,44(1):79-84.
[16]杨顶辉.双相各向异性介质中弹性波方程的有限元解法及波场模拟[J].地球物理学报,2002,45(4):575-583.YANG Dinghui.Finite element method of the elastic wave equation and wavefield simulation in two-phase anisotropic media[J].Chinese J Geop Hys,2002,45(4):575-583.
[17]裴正林.三维双相各向异性介质弹性波方程交错网格高阶有限差分法模拟[J].中国石油大学学报:自然科学版,2006,30(2):16-20.PEI Zhenglin.A staggered-grid high-order finite difference method for modeling elastic wave equation in 3-D dual-phase anisotropic media[J].Journal of the University of Petroleum,China:Edition of Natural Science,2006,30(2):16-20.
[18]孟庆生,何樵登,朱建伟,等.基于BISQ模型双相各向同性介质中地震波数值模拟[J].吉林大学学报:地球科学版,2003,33(2):217-221.MENG Qingsheng,HE Qiaodeng,ZHU Jianwei,et al.Seismic modeling in isotropic porous media based on BISQ model[J].Journal of Jilin University:Earth Science Edition,2003,33(2):217-221.
[19]Sabatier J M,Xiang N.Laser-Doppler based acoustic-to-seismic detection of buried mines[C]//Dubey A.C.ed.Conference on Detection and Remediation Technologies for Mines and Minelike Targets IV,Proc.SPIE 3710,1999:215-222.
[20]Robert W H,Kenneth D R.Standoff acoustic laser technique to locate buried land mines[J].Lincoln Laboratory Journal,2005,15(1):3-22.
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心