基于台阵资料测量高铁信号视速度的方法  

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

作　　者：殷常阳 温景充 石永祥 宁杰远[1,2] YIN Changyang;WEN Jingchong;SHI Yongxiang;NING Jieyuan(School of Earth and Space Sciences,Peking University,Beijing 100871;Hebei Hongshan National Geophysical Observation and Research Station,Xingtai 054000)

机构地区：[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

出　　处：《北京大学学报（自然科学版）》2022年第5期813-819,共7页Acta Scientiarum Naturalium Universitatis Pekinensis

基　　金：河北省地震科技星火计划(DZ20200827054);国家自然科学基金(41874071)资助。

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。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 crosscorrelation 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.

关 键 词：高铁 移动组合源 干涉场 视速度 

分 类 号：U284[交通运输工程—交通信息工程及控制]