基于双谱时延估计的爆心定位研究
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摘要
爆心距是影响爆破振动强度的重要因素,对爆心的准确定位可获取更接近实际情况的爆心距,从而更加准确的对爆破振动质点速度峰值进行预测。基于现场的实测爆破振动信号,利用MATLAB软件编制程序,进行双谱时延估计仿真试验,验证了此方法对于爆破振动信号时延估计的可靠性。然后利用该方法确定不同传感器接收的爆破振动信号延迟时间,采用正三角定位原理推导出爆心定位的计算方法,并利用单孔爆破进行爆心定位试验,初步验证了该方法的有效性。此方法的研究具有重要的工程价值,为准确的进行爆破振动的预测和控制提供一个新的方法。
The distance to blast center is an important factor of impacting on blasting vibration,the exact location of blast center could obtain the actual distance to blast center,which is more accurate of predictting the peak particle velocity of blasting vibration.Based on the monitored vibratioin signals on site,and using the development process of MATLAB software,the bispectrum time delay estimation is simulated to prove the reliability of this method for blasting vibration signals delay estimation.Then the signals delay time of different sensors are determined by this way.The theory of regular triangle position is used to deduce the calculation of blast center position and based on single-hole blast test,which confirm the validity of the method and provide a new way to accurately prodict and control the blasting vibration.
The distance to blast center is an important factor of impacting on blasting vibration,the exact location of blast center could obtain the actual distance to blast center,which is more accurate of predictting the peak particle velocity of blasting vibration.Based on the monitored vibratioin signals on site,and using the development process of MATLAB software,the bispectrum time delay estimation is simulated to prove the reliability of this method for blasting vibration signals delay estimation.Then the signals delay time of different sensors are determined by this way.The theory of regular triangle position is used to deduce the calculation of blast center position and based on single-hole blast test,which confirm the validity of the method and provide a new way to accurately prodict and control the blasting vibration.
引文
[1]张丹.爆源因素对爆破地震强度分布特征的影响研究[D].成都:西南交通大学,2007.
[2]卢文波,HUSTRULID W.质点峰值振动速度衰减公式的改进[J].工程爆破,2002,8(3):1-4.[2]LU Wen-bo,HUSTRULID W.An improvement to the e-quation for the attenuation of the peak particle velocity[J].Engineering Blasting,2002,8(3):1-4.(in Chi-nese)
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[11]刘希强,周彦文,李红.双谱估计在地震前兆数字化资料分析中的应用[J].西北地震学报,2007,29(3):201-206.[11]LIU Xi-qiang,ZHOU Yan-wen,LI Hong,et al.Applica-tion of bispectrum estimation in digital earthquake pre-cursory monitoring Data[J].Northwestern SeismologicalJournal,2007,29(3):201-206.(in Chinese)
[12]崔云航,季茂荣.双谱估计法及其在智能地雷时延估计中的应用[J].解放军理工大学学报(自然科学版),2002,3(4):42-45.[12]CUI Yun-hang,JI Mao-rong.Time delay estimate usingbispectrum method and application in time delay esti-mate of intelligent mine[J].Journal of PLA University ofScience and Technology,2002,3(4):42-45.(in Chi-nese)
[13]李祥龙,刘殿书,董星,等.岩石材料损伤与应力波参数关系研究[J].爆破,2009,26(3):6-9.[13]LI Xiang-long,LIU Dian-shu,DONG Xin,et al.Study onrelationship between rock material damage and stresswave parameters[J].Blasting,2009,26(3):6-9.(inChinese)
[14]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.[14]ZHAO Ming-sheng,ZHANG Jian-hua,YI Chang-ping.Time-frequency analysis based on single-stage additionof waveforms of blasting vibration signals[J].Journal ofChina Coal Society,2010,35(8):1279-1282.(in Chi-nese)
[15]孙洁娣,温江涛,靳世久.基于HHT的地面活动目标定位方法的研究[J].振动与冲击,2009,28(5):169-171.[15]SUN Jie-di,WEN Jiang-tao,JIN Shi-jiu.Localizationprinciple of ground surfacemoving target based on HHT[J].Journal of Vibration and Shock,2009,28(5):169-171.(in Chinese)
[2]卢文波,HUSTRULID W.质点峰值振动速度衰减公式的改进[J].工程爆破,2002,8(3):1-4.[2]LU Wen-bo,HUSTRULID W.An improvement to the e-quation for the attenuation of the peak particle velocity[J].Engineering Blasting,2002,8(3):1-4.(in Chi-nese)
[3]唐海.地形地貌对爆破振动波影响的实验和理论研究[D].武汉:中国科学院武汉岩土力学研究所,2007.
[4]林丽群,林从谋,蔡丽光,等.隧道爆破振动的BP神经网络预测及应用研究[J].爆破,2009,26(4):4-7.[4]LIN Li-qun,LIN Cong-mou,CAI Li-guang,et al.Predic-tion and application research of tunnel blasting vibrationbased on BP neural network[J].Blasting,2009,26(4):4-7.(in Chinese)
[5]肖正学,张志呈,李朝鼎.爆破地震波动力学基础与地震效应[M].成都:电子科技大学出版社,2004.
[6]郅熙彪,王伟策,刘强.正三角震动阵列对地面震动目标定位研究[J].探测与控制学报,2006,28(4):27-30.[6]ZHI Xi-biao,WANG Wei-ce,LIU Qiang.Study on the lca-tion of the vibratory object on ground by regular trianglearray[J].Journal of Detection&Control,2006,28(4):27-30.(in Chinese)
[7]STAFSUDD J Z,ASGARI S,HUDSON R,et al.Localiza-tion of short-range acoustic and seismic widebandsources:algorithms and experiments[J].Journal of Soundand Vibration,2008,312:74-93.(in Chinese)
[8]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.
[9]葛哲学,陈仲生.MATLAB时频分析技术及其应用[M].北京:人民邮电出版社.2006.
[10]冷军发,荆双喜,禹建功.基于小波双谱的矿用齿轮箱故障诊断[J].煤炭学报,2010,35(7):1212-1214.[10]LENG Jun-fa,JING Shuang-xi,YU Jian-gong.Mine gear-box fault diagnosis based on wavelet and bispectrum[J].Journal of China Coal Society,2010,35(7):1212-1214.(in Chinese)
[11]刘希强,周彦文,李红.双谱估计在地震前兆数字化资料分析中的应用[J].西北地震学报,2007,29(3):201-206.[11]LIU Xi-qiang,ZHOU Yan-wen,LI Hong,et al.Applica-tion of bispectrum estimation in digital earthquake pre-cursory monitoring Data[J].Northwestern SeismologicalJournal,2007,29(3):201-206.(in Chinese)
[12]崔云航,季茂荣.双谱估计法及其在智能地雷时延估计中的应用[J].解放军理工大学学报(自然科学版),2002,3(4):42-45.[12]CUI Yun-hang,JI Mao-rong.Time delay estimate usingbispectrum method and application in time delay esti-mate of intelligent mine[J].Journal of PLA University ofScience and Technology,2002,3(4):42-45.(in Chi-nese)
[13]李祥龙,刘殿书,董星,等.岩石材料损伤与应力波参数关系研究[J].爆破,2009,26(3):6-9.[13]LI Xiang-long,LIU Dian-shu,DONG Xin,et al.Study onrelationship between rock material damage and stresswave parameters[J].Blasting,2009,26(3):6-9.(inChinese)
[14]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.[14]ZHAO Ming-sheng,ZHANG Jian-hua,YI Chang-ping.Time-frequency analysis based on single-stage additionof waveforms of blasting vibration signals[J].Journal ofChina Coal Society,2010,35(8):1279-1282.(in Chi-nese)
[15]孙洁娣,温江涛,靳世久.基于HHT的地面活动目标定位方法的研究[J].振动与冲击,2009,28(5):169-171.[15]SUN Jie-di,WEN Jiang-tao,JIN Shi-jiu.Localizationprinciple of ground surfacemoving target based on HHT[J].Journal of Vibration and Shock,2009,28(5):169-171.(in Chinese)
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