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Green's function for three-dimensional elastic wave equation with a moving point source on the free surface with applications

文献类型：期刊论文

作者Chen, Jing-Bo1,2,3; Cao, Jian1,2,3
刊名GEOPHYSICAL PROSPECTING
出版日期2020-01-15
页码10
关键词Elastodynamic Green's function Green's function computation Modelling
ISSN号0016-8025
DOI10.1111/1365-2478.12928
英文摘要High-speed train seismology has come into being recently. This new kind of seismology uses a high-speed train as a repeatable moving seismic source. Therefore, Green's function for a moving source is needed to make theoretical studies of the high-speed train seismology. Green's function for three-dimensional elastic wave equation with a moving point source on the free surface is derived. It involves a line integral of the Green's function for a fixed point source with different positions and corresponding time delays. We give a rigorous mathematical proof of this Green's function. According to the principle of linear superposition, we have also obtained the Green's function for a group of moving sources which can be regarded as a model of a traveling high-speed train. Based on a temporal convolution, an analytical formula for other moving sources is also given. In terms of a moving Gaussian source, we deal with the issue of numerical calculations of the analytical formula. Applications to modelling of a traveling high-speed train are presented. We have considered both the land case and the bridge case for a traveling high-speed train. The theoretical seismograms show different waveform features for these two cases.
WOS关键词PROPAGATION
资助项目National Natural Science Foundation of China[41874163] ; National Natural Science Foundation of China[41674132] ; National Major Project of China[2018YFF01013503]
WOS研究方向Geochemistry & Geophysics
语种英语
WOS记录号WOS:000507131700001
出版者WILEY
资助机构National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Major Project of China ; National Major Project of China ; National Major Project of China ; National Major Project of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Major Project of China ; National Major Project of China ; National Major Project of China ; National Major Project of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Major Project of China ; National Major Project of China ; National Major Project of China ; National Major Project of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Major Project of China ; National Major Project of China ; National Major Project of China ; National Major Project of China
源URL[http://ir.iggcas.ac.cn/handle/132A11/95923]  
专题地质与地球物理研究所_中国科学院油气资源研究重点实验室
通讯作者Chen, Jing-Bo
作者单位1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
2.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Petr Resources Res, Beijing 100029, Peoples R China
3.Chinese Acad Sci, Inst Earth Sci, Beijing 100029, Peoples R China
推荐引用方式
GB/T 7714		 Chen, Jing-Bo,Cao, Jian. Green's function for three-dimensional elastic wave equation with a moving point source on the free surface with applications[J]. GEOPHYSICAL PROSPECTING,2020:10.
APA Chen, Jing-Bo,&Cao, Jian.(2020).Green's function for three-dimensional elastic wave equation with a moving point source on the free surface with applications.GEOPHYSICAL PROSPECTING,10.
MLA Chen, Jing-Bo,et al."Green's function for three-dimensional elastic wave equation with a moving point source on the free surface with applications".GEOPHYSICAL PROSPECTING (2020):10.

入库方式： OAI收割

来源：地质与地球物理研究所

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