The Displacement and Strain Field of Three-Dimensional Rheologic Model of Earthquake Preparation

doi:10.1007/s00024-006-0109-z

IMECH-IR > 力学所知识产出(1956-2008)

	The Displacement and Strain Field of Three-Dimensional Rheologic Model of Earthquake Preparation
	Song ZP; Yin XC(尹祥础); Mei SR; Wang YC; Song, ZP (reprint author), Earthquake Adm Shanghai Municipal, Shanghai 200062, Peoples R China.
发表期刊	Pure and Applied Geophysics
	2006
ISSN	0033-4553
摘要	Based on the three-dimensional elastic inclusion model proposed by Dobrovolskii, we developed a rheological inclusion model to study earthquake preparation processes. By using the Corresponding Principle in the theory of rheologic mechanics, we derived the analytic expressions of viscoelastic displacement U(r, t) , V(r, t) and W(r, t), normal strains epsilon(xx) (r, t), epsilon(yy) (r, t) and epsilon(zz) (r, t) and the bulk strain theta (r, t) at an arbitrary point (x, y, z) in three directions of X axis, Y axis and Z axis produced by a three-dimensional inclusion in the semi-infinite rheologic medium defined by the standard linear rheologic model. Subsequent to the spatial-temporal variation of bulk strain being computed on the ground produced by such a spherical rheologic inclusion, interesting results are obtained, suggesting that the bulk strain produced by a hard inclusion change with time according to three stages (alpha, beta, gamma) with different characteristics, similar to that of geodetic deformation observations, but different with the results of a soft inclusion. These theoretical results can be used to explain the characteristics of spatial-temporal evolution, patterns, quadrant-distribution of earthquake precursors, the changeability, spontaneity and complexity of short-term and imminent-term precursors. It offers a theoretical base to build physical models for earthquake precursors and to predict the earthquakes.
学科领域	力学
DOI	10.1007/s00024-006-0109-z
收录类别	SCI
语种	英语
WOS记录号	WOS:000241455500017
WOS研究方向	Geochemistry & Geophysics
WOS类目	Geochemistry & Geophysics
引用统计
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/16087
专题	力学所知识产出(1956-2008)
通讯作者	Song, ZP (reprint author), Earthquake Adm Shanghai Municipal, Shanghai 200062, Peoples R China.
推荐引用方式 GB/T 7714	Song ZP,Yin XC,Mei SR,et al. The Displacement and Strain Field of Three-Dimensional Rheologic Model of Earthquake Preparation[J]. Pure and Applied Geophysics,2006.
APA	Song ZP,尹祥础,Mei SR,Wang YC,&Song, ZP .(2006).The Displacement and Strain Field of Three-Dimensional Rheologic Model of Earthquake Preparation.Pure and Applied Geophysics.
MLA	Song ZP,et al."The Displacement and Strain Field of Three-Dimensional Rheologic Model of Earthquake Preparation".Pure and Applied Geophysics (2006).

条目包含的文件		下载所有文件
文件名称/大小	文献类型	版本类型	开放类型	使用许可
104109.pdf（344KB）			开放获取	--	浏览下载