An Array-Based Method for Measuring Apparent Velocity of the High-Speed Rail Seismic Wavefield

doi:10.13209/j.0479-8023.2022.046

Acta Scientiarum Naturalium Universitatis Pekinensis ›› 2022, Vol. 58 ›› Issue (5): 813-819.DOI: 10.13209/j.0479-8023.2022.046

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An Array-Based Method for Measuring Apparent Velocity of the High-Speed Rail Seismic Wavefield

YIN Changyang¹, WEN Jingchong¹, SHI Yongxiang¹, NING Jieyuan^1,2,†

1. School of Earth and Space Sciences, Peking University, Beijing 100871 2. Hebei Hongshan National Geophysical Observation and Research Station, Xingtai 054000

Received:2021-05-30 Revised:2022-05-22 Online:2022-09-20 Published:2022-09-20
Contact: NING Jieyuan, E-mail: njy(at)pku.edu.cn

基于台阵资料测量高铁信号视速度的方法

殷常阳¹, 温景充¹, 石永祥¹, 宁杰远^1,2,†

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, 邢台 054000

通讯作者: 宁杰远, E-mail: njy(at)pku.edu.cn
基金资助:
河北省地震科技星火计划(DZ20200827054)和国家自然科学基金(41874071)资助

Abstract

Abstract:

For the seismic source generated by the high-speed rail with viaduct, a theoretical method is proposed to measure the apparent velocity of the high-speed rail wavefield generated by a moving source set by using cross-correlation of the waves recorded by multiple stations. Furthermore, synthetic data of the high-speed rail wavefields in layered media is generated, and the apparent velocity of a phase in it is calculated. The correctness of the method is verified compared with the theoretical results.

Key words: high-speed rail, moving source combination, interference field, apparent velocity

摘要：

针对运行于高架桥上高铁引发的震源, 基于对移动组合源形成的波场传播的理论分析, 提出一种利用多台互相关测量高铁波场视速度的方法。然后, 生成分层介质条件下的高铁波场合成数据, 计算信号视速度, 并通过与理论结果的对比, 验证方法的正确性。

关键词: 高铁, 移动组合源, 干涉场, 视速度

YIN Changyang, WEN Jingchong, SHI Yongxiang, NING Jieyuan. An Array-Based Method for Measuring Apparent Velocity of the High-Speed Rail Seismic Wavefield[J]. Acta Scientiarum Naturalium Universitatis Pekinensis, 2022, 58(5): 813-819.

殷常阳, 温景充, 石永祥, 宁杰远. 基于台阵资料测量高铁信号视速度的方法[J]. 北京大学学报自然科学版, 2022, 58(5): 813-819.

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URL: https://xbna.pku.edu.cn/EN/10.13209/j.0479-8023.2022.046

https://xbna.pku.edu.cn/EN/Y2022/V58/I5/813

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An Array-Based Method for Measuring Apparent Velocity of the High-Speed Rail Seismic Wavefield

基于台阵资料测量高铁信号视速度的方法

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