列车振动震源产生地震波的采集方法及信号比较研究
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摘要
通过描述列车振动作为震源所产生地震波的采集方法,对大秦铁路线怀柔段以及京沪铁路线兖州段铁路沿线的两次观测试验记录进行了观测系统和信号品质的比较研究,分析了通过宽频地震仪和浅层地震仪所接收火车振动信号的不同特点,为再次开展野外信号采集提出了建议,并预言列车振动将成为铁路沿线进行浅层地震勘探生产中的有效震源。
Through describing the seismic wave gathering method about the source of the vibration induced by trains, the two observation records, gathered at Huairou segment, Da-qin track line, and Yanzhou segment, Jing-hu trace line, are compared on the geometry and the quality of gathered signals. Analysis give out the different characteristics of signals gathered through the broadband seismographs and the shallow layer seismographs, and the suggestions to the next field signal gathering examination have been made. At last, the source of the vibration induced by trains were regarded as a intending source that will be used in shallow layer seismic exploration along the rail line.
Through describing the seismic wave gathering method about the source of the vibration induced by trains, the two observation records, gathered at Huairou segment, Da-qin track line, and Yanzhou segment, Jing-hu trace line, are compared on the geometry and the quality of gathered signals. Analysis give out the different characteristics of signals gathered through the broadband seismographs and the shallow layer seismographs, and the suggestions to the next field signal gathering examination have been made. At last, the source of the vibration induced by trains were regarded as a intending source that will be used in shallow layer seismic exploration along the rail line.
引文
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[5]http://www.pgc.nrcan.gc.ca/seismo/seismos/interpret.htm
[6]李丽,彭文涛等.可作为新震源的列车振动及实验研究.地球物理学报,2004,47(4):680-684
[7]Degrande G, Schillemans L. Free field vibrations during the passage of a Thalys high-speed train at variable speed[J]. J Sound Vibr, 2001,247(1): 131～144
[8]Gutowski T G, Dym C L. Propagation of ground vibration: a review[J]. J Sound Vibr,1976,49(2): 179～193
[9]Jones C J C, Sheng X, Petyt M.Simulations of ground vibration from a moving harmonic load on a railway track[J].J Sound Vibr,2000,231(3):739～751
[10]Yang Y B, Hung H H, Chang D W.Train-induced wave propagation in layered soilsu singf inite/infinitee lements imulation[J].Soil Dynamics and Earthquake Engineering,2003,23(4): 263～278
[2]管天保,雷晓燕等.重载列车轮轨动力作用分析[J].中国铁道科学,1995,16(1):64-77
[3]陈实,徐国彬等.列车振动对铁路沿线结构物影响的动力分析[J].北方交通大学学报,1998,22(4):57-60
[4]王逢朝,夏禾等.列车振动对环境及建筑物的影像分析[J].北方交通大学学报,1999,23(4):13-17
[5]http://www.pgc.nrcan.gc.ca/seismo/seismos/interpret.htm
[6]李丽,彭文涛等.可作为新震源的列车振动及实验研究.地球物理学报,2004,47(4):680-684
[7]Degrande G, Schillemans L. Free field vibrations during the passage of a Thalys high-speed train at variable speed[J]. J Sound Vibr, 2001,247(1): 131～144
[8]Gutowski T G, Dym C L. Propagation of ground vibration: a review[J]. J Sound Vibr,1976,49(2): 179～193
[9]Jones C J C, Sheng X, Petyt M.Simulations of ground vibration from a moving harmonic load on a railway track[J].J Sound Vibr,2000,231(3):739～751
[10]Yang Y B, Hung H H, Chang D W.Train-induced wave propagation in layered soilsu singf inite/infinitee lements imulation[J].Soil Dynamics and Earthquake Engineering,2003,23(4): 263～278
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