北京大学学报（自然科学版）2019，Vol.55Issue(5)：838-848,11.DOI:10.13209/j.0479-8023.2019.073
高架桥下方高铁地震波场的特征量提取
Extraction of Characteristics of Wavefield under Viaduct Produced by High-Speed Rail
摘要
Abstract
The seismic signal propagating along the viaduct of a high-speed rail when the train is approaching or departing is extracted by cross-correlation method. Stable average cross-correlation function can be obtained by stacking the cross-correlation functions of different trains. The average cross-correlation function can be used as the characteristic quantity of the wavefield produced by high-speed rail. This quantity has potential to monitor the structural changes of the high-speed rail viaduct.关键词
高铁地震波场/ 互相关函数/ 被动监测Key words
wavefield of high-speed railway/ cross-correlation function/ passive monitoring引用本文复制引用
鲍铁钊,宁杰远,张献兵..高架桥下方高铁地震波场的特征量提取[J].北京大学学报（自然科学版）,2019,55(5):838-848,11.基金项目
国家自然科学基金(41874071)资助 （41874071）
