Velocity and acceleration characteristics of seismic ground motions;related to basin structure

	Velocity and acceleration characteristics of seismic ground motions;related to basin structure
	Zhao, ZX; Xu, JR
刊名	CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION
	2005
卷号	48 期号:5 页码:1085-1091
关键词	basin structure staggered grid FFT differentiation ground motion acceleration multiple wave reflection seismic wave interference
ISSN号	0001-5733
英文摘要	In present analysis distributions of seismic wave propagation and amplitude related to basin structure and alluvial fan in heterogeneous medium are digitally simulated by using the pseudospectral method with the staggered grid RFFT differentiation. The results show that the seismic energy transmitting into sediments in the basin from the bedrock region can not penetrate the bottom of basin back into the bedrock region. The seismic waves oscillating up-down within the basin may result in large damages for buildings above the basin structure. It is a notable characteristic for the aseismic research and engineering. Interferences due to the secondary surface wave from the bedrock to sedimentary basin and the upward body wave probably result in peak ground accelerations and peak collapse ratios of buildings away from the earthquake fault. Analyses of the interference process show that seismic velocity structure and geologic structure strongly influence the distribution of the maximum amplitudes of acceleration and velocity waveforms.
学科主题	固体地球物理学
WOS关键词	PSEUDOSPECTRAL METHOD ; WAVE-PROPAGATION ; EARTHQUAKE ; SIMULATION ; INTERFERENCE ; CALIFORNIA ; EQUATION ; JAPAN ; FAULT ; KOBE
WOS研究方向	Geochemistry & Geophysics
语种	中文
出版者	SCIENCE PRESS
WOS记录号	WOS:000232232400015
内容类型	期刊论文
源URL	[http://119.78.100.197/handle/2HKVOGP0/38063]
专题	中国地质科学院地质研究所
作者单位	Chinese Acad Geol Sci, Inst Geol, Beijing 100037, Peoples R China.
推荐引用方式 GB/T 7714	Zhao, ZX,Xu, JR. Velocity and acceleration characteristics of seismic ground motions;related to basin structure[J]. CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,2005,48(5):1085-1091.
APA	Zhao, ZX,&Xu, JR.(2005).Velocity and acceleration characteristics of seismic ground motions;related to basin structure.CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,48(5),1085-1091.
MLA	Zhao, ZX,et al."Velocity and acceleration characteristics of seismic ground motions;related to basin structure".CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION 48.5(2005):1085-1091.