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| 高铁地震面波相速度频散曲线提取 | |
| 引用本文： | 温景充, 石永祥, 宁杰远. 2021. 高铁地震面波相速度频散曲线提取. 地球物理学报, 64(9): 3246-3256, doi: 10.6038/cjg2021P0252 |
| 作者姓名： | 温景充 石永祥 宁杰远 |
| 作者单位： | 1. 北京大学地球与空间科学学院, 北京 100871; 2. 河北红山地球物理国家野外科学观测研究站, 河北邢台 054000 |
| 基金项目： | 河北省地震科技星火计划 |
| 摘 要： |  为了充分利用高铁地震信号中的面波信息,本文将双台法和旋转法等面波相速度提取方法应用于高铁地震模拟记录,尝试提取基阶瑞利波与勒夫波相速度频散曲线.通过分析以高铁高架桥的桥墩为源的高铁波场干涉特征,给出了适用于高铁地震波场的面波相速度校正方法;通过数值实验,证明了方法的有效性. |
| 关 键 词： | 移动组合源 高铁地震波场 面波 频散曲线 旋转地震学 |
| 收稿时间： | 2021-04-19 |
| 修稿时间： | 2021-07-07 |
Measurement of high-speed rail surface-wave phase-velocity dispersion |
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| WEN JingChong, SHI YongXiang, NING JieYuan. 2021. Measurement of high-speed rail surface-wave phase-velocity dispersion. Chinese Journal of Geophysics (in Chinese), 64(9): 3246-3256, doi: 10.6038/cjg2021P0252 | |
| Authors: | WEN JingChong SHI YongXiang NING JieYuan |
| Affiliation: | 1. School of Earth and Space Sciences, Peking University, Beijing 100871, China; 2. Hebei Hongshan Geophysical National Observation and Research Station, Hebei Xingtai 054000, China |
| Abstract: | In order to make full use of the surface wave information in high-speed rail seismic signals, this paper applies the two-station method and the rotation method to the high-speed rail seismic simulation results, trying to obtain dispersion curves of the fundamental-mode Rayleigh and Love waves. By analyzing the interference characteristics of the wave field generated by the piers of the high-speed rail with viaduct, we propose a surface-wave phase velocity correction method suitable for the high-speed rail seismic wave field. Numerical tests show the effectiveness of the method. |
| Keywords: | Moving source set High-speed rail seismic wave field Surface wave Dispersion curve Rotational seismology |
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