| 可作为新震源的列车振动及实验研究 |
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| 引用本文： | 李丽,彭文,李纲,陈颙,陈棋福,汤毅.可作为新震源的列车振动及实验研究[J].地球物理学报,2004,47(4):680-684. |
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| 作者姓名： | 李丽 彭文 李纲 陈颙 陈棋福 汤毅 |
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| 作者单位： | 中国地震局分析预报中心,北京,100036;中国科学院地质与地球物理研究所,北京,100029;中国地震局地球物理研究所,北京,100081 |
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| 基金项目： | 国家自然科学基金项目 ( 4 0 3 72 0 94)，科技部基础研究重大项目前期研究专项 ( 2 0 0 1CCA0 2 10 0 ) |
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| 摘 要： | 利用地震仪器对火车通过大同—秦岭铁路线产生的振动进行了观测. 观测中使用了两套宽频带地震仪和一套短周期地震仪，共获得距铁路0～2.15km的9个观测点的38次列车振动观测数据，全部记录均可分辨出清晰的地震波形. 研究表明：运动列车会在铁路沿线2～3km范围内产生明显的地面振动，接收到的振动频谱在0.05～20Hz范围内平坦，信号频带较宽，观测重复性好. 列车振动为利用地震勘探方法探测地下浅层结构提供了一种重复性很好的新震源.
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| 关 键 词： | 列车振动 地壳结构 爆破地震学 新震源 |
| 文章编号： | 0001-5733(2004)04-0680-05 |
| 收稿时间： | 2003-6-16 |
| 修稿时间： | 2004-3-26 |
induced by trains: a new seismic source and relative test |
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| LI Li PENG Wen-Tao LI Gang CHEN Yong CHEN Qi-Fu TANG Yi Center for Analysis and Prediction,China Earthquake Administration,Beijing ,China Institute of Geology and Geophysics,Chinese Academy of Sciences,Beijing ,China Institute of Geophysics,China Earthquake Administration,Beijing ,China.induced by trains: a new seismic source and relative test[J].Chinese Journal of Geophysics,2004,47(4):680-684. |
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| Authors: | LI Li PENG Wen-Tao LI Gang CHEN Yong CHEN Qi-Fu TANG Yi Center for Analysis and Prediction China Earthquake Administration Beijing China Institute of Geology and Geophysics Chinese Academy of Sciences Beijing China Institute of Geophysics China Earthquake Administration Beijing China |
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| Institution: | 1.Center for Analysis and Prediction, China Earthquake Administration, Beijing 100036, China 2 Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China 3 Institute of Geophysics, China Earthquake Administration, Beijing 100081, China |
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| Abstract: | Vibrations induced by train moving on railway tracks could arouse elastic waves in the shallow crust, which radiate on the ground surface in a long distance around the train lines. We recorded some of the ground waves along the Datong Qinling railroad in Northern China, with two sets of broad band and one set of short period seismometers. 38 shock events on 9 sites were clearly recorded at a distance of 0～2.15km to the railroad. Observations show that the vibrations induced by a running train would cause significant ground trembling in a distance of 2～3km, and the flat frequency of the seismometers covers 0.05 to 20Hz. The broad frequency range and repeatability of the trembling indicates that the vibration could be used as a seismic source to detect shallow structures in the crust. It is expected that a new kind of exploration source with related new observing systems, new data processing methods and new crustal models will bring lights to the traditional exploration seismology. |
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| Keywords: | Vibration induced by trains Shallow crustal structures Exploration seismology Seismic sources |
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