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.
作者
殷常阳
温景充
石永祥
宁杰远
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)
出处
《北京大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
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。
关键词
高铁
移动组合源
干涉场
视速度
high-speed rail
moving source combination
interference field
apparent velocity
