隧道掘进爆破地震频谱特性分析
|
摘要
结合某蓄能电站工程,分别应用快速傅立叶变换和小波包理论分析了隧道掘进爆破振动的特点,它的能量和频率特性表现出随着装药量的增加,主震频率降低,能量也相对的集中在较低的频段上的特点。由于隧道开挖采用多段微差爆破,所以多数实测爆破地震波中存在多个优势频率峰值,能量带分布很宽。结构物对爆破振动荷载的动态响应,是其对于不同优势频率的细节信号的不同的动态响应的叠加的结果。
Combined with storage station project,the FFT and wavelet theory are used to analyze the character of tunnel excavation blasting vibration: with the increase of charge,main frequency decreases and energy centralizes in lower frequency belt.Multi-millisecond blasting is used in tunnel excavation,so there are several dominating frequency peak values in actual observation blasting seismic,and the energy distribution belt is wide.Under blasting vibrating load,the dynamic response of the structure results from the superposed results of its dynamic response to various dominating frequency detail signals.
Combined with storage station project,the FFT and wavelet theory are used to analyze the character of tunnel excavation blasting vibration: with the increase of charge,main frequency decreases and energy centralizes in lower frequency belt.Multi-millisecond blasting is used in tunnel excavation,so there are several dominating frequency peak values in actual observation blasting seismic,and the energy distribution belt is wide.Under blasting vibrating load,the dynamic response of the structure results from the superposed results of its dynamic response to various dominating frequency detail signals.
引文
[1]许红涛,卢文波.几种爆破震动安全判据[J].爆破,2002,19(3):8~10.[1]XU Hong-tao,LU W en-bo.Advance on Safety Criteria forB lasting V ibration[J].B lasting,2002,19(3):8~10.
[2]张雪亮,黄树棠.爆破地震效应[M].北京:地震出版社,1981.[2]ZHANG Xue-liang,HUANG Shu-tang.B lasting Se ism icE ffect[M].Be ijing:Earthquake Press,1981.
[3]刘贵忠,邸双亮.小波分析及其应用[M].西安:西安电子科技大学出版社,1997.[3]LIU Gu i-zhong,D I Shuang-liang.W aveletAnalysis and ItsApp lication[M].X i’an:X id ian Un iversity Pub lish ingHouse,1997.
[4]崔锦泰.小波分析导论[M].西安:西安交通大学出版社,1998.[4]CUI Jin-tai.W avelet Analysis Introduction[M].X i’an:X i’an Jiaotong Un iversity Press,1998.
[5]陈逢时.子波变换理论及其在信号分析与处理中的应用[M].北京:国防工业出版社,1999.[5]CHEN Feng-sh i.The Sub-wave Transform Theory and ItsApp lication in S ignal Analysing and Dealing[M].Be i-jing:National Defense Industry Press,1999.
[6]何军,于亚伦,梁文基.爆破振动信号的小波分析[J].岩土工程学报,1998,20(1):47~50.[6]HE Jun,YU Ya-lun,LIANG W en-ji.W avelet Analysis ofB lasting V ibration S ignal[J].Ch inese Journal ofGeotech-n ical Engineering,1998,20(1):47~50.
[7]胡昌华.基于MATLAB的系统分析与设计———小波分析[M].西安:西安电子科技大学出版社,1999.[7]HU Chang-hua.System Analysis and Design Based onMATLAB-waveletAnalysis[M].X i'an:X id ian Un iversityPress,1999.
[8]黄文华,徐全军,沈蔚,等.小波变换在判断爆破地震危害中的应用[J].工程爆破,2001,3:24~27.[8]HUANG W en-hua,XU Quan-jun,Shen W e i,et al.App li-cation ofW avelet Transform in Evaluation of B lasting V i-bration Dam age[J].B lasting Engineering,2001,3:24~27.
[9]李彬峰.爆破地震效应及其控制措施分析[J].爆破,2003,20(2):83~85.[9]LI B in-feng.Analysis of Controlling M easurem ent andB lasting V ibration E ffect[J].B lasting,2003,20(2):83~85.
[10]程康,徐学勇.爆破振动频率对振动效应影响的试验研究[J].爆破,2003,20(3):79~81.[10]CHENG Kang,XU Xue-yong.Experim ental Research onInfluence of B lasting V ibration Frequency on Its V ibra-tion E ffect[J].B lasting,2003,20(3):79~81.
[2]张雪亮,黄树棠.爆破地震效应[M].北京:地震出版社,1981.[2]ZHANG Xue-liang,HUANG Shu-tang.B lasting Se ism icE ffect[M].Be ijing:Earthquake Press,1981.
[3]刘贵忠,邸双亮.小波分析及其应用[M].西安:西安电子科技大学出版社,1997.[3]LIU Gu i-zhong,D I Shuang-liang.W aveletAnalysis and ItsApp lication[M].X i’an:X id ian Un iversity Pub lish ingHouse,1997.
[4]崔锦泰.小波分析导论[M].西安:西安交通大学出版社,1998.[4]CUI Jin-tai.W avelet Analysis Introduction[M].X i’an:X i’an Jiaotong Un iversity Press,1998.
[5]陈逢时.子波变换理论及其在信号分析与处理中的应用[M].北京:国防工业出版社,1999.[5]CHEN Feng-sh i.The Sub-wave Transform Theory and ItsApp lication in S ignal Analysing and Dealing[M].Be i-jing:National Defense Industry Press,1999.
[6]何军,于亚伦,梁文基.爆破振动信号的小波分析[J].岩土工程学报,1998,20(1):47~50.[6]HE Jun,YU Ya-lun,LIANG W en-ji.W avelet Analysis ofB lasting V ibration S ignal[J].Ch inese Journal ofGeotech-n ical Engineering,1998,20(1):47~50.
[7]胡昌华.基于MATLAB的系统分析与设计———小波分析[M].西安:西安电子科技大学出版社,1999.[7]HU Chang-hua.System Analysis and Design Based onMATLAB-waveletAnalysis[M].X i'an:X id ian Un iversityPress,1999.
[8]黄文华,徐全军,沈蔚,等.小波变换在判断爆破地震危害中的应用[J].工程爆破,2001,3:24~27.[8]HUANG W en-hua,XU Quan-jun,Shen W e i,et al.App li-cation ofW avelet Transform in Evaluation of B lasting V i-bration Dam age[J].B lasting Engineering,2001,3:24~27.
[9]李彬峰.爆破地震效应及其控制措施分析[J].爆破,2003,20(2):83~85.[9]LI B in-feng.Analysis of Controlling M easurem ent andB lasting V ibration E ffect[J].B lasting,2003,20(2):83~85.
[10]程康,徐学勇.爆破振动频率对振动效应影响的试验研究[J].爆破,2003,20(3):79~81.[10]CHENG Kang,XU Xue-yong.Experim ental Research onInfluence of B lasting V ibration Frequency on Its V ibra-tion E ffect[J].B lasting,2003,20(3):79~81.
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