Rayleigh channel wave field and dispersion of coal seams with small faults

doi:10.6038/cjg2018J0590

CORC > 地质与地球物理研究所 > 中国科学院地质与地球物理研究所 > 岩石圈演化国家重点实验室

	Rayleigh channel wave field and dispersion of coal seams with small faults
	Qiao YongHu 1,2; Teng JiWen 2,3; Pi JiaoLong 2
刊名	CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION
	2018-12-01
卷号	61 期号:12 页码:4976-4987
关键词	Rayleigh channel wave Spectral element method Numerical simulation Dispersion analysis Small-throw fault
ISSN号	0001-5733
DOI	10.6038/cjg2018J0590
英文摘要	Whether concealed small faults in coal seams can be found out during geological exploration is a main geological factor that affects the safety production of a coal mine. Seam Channel waves in coal seams are very suitable for detecting abnormal structures in a coal field, because they are characterized by strong energy, obvious dispersion and easy to identify. In this paper, we use the spectral element method to simulate 2D Rayleigh channel wave propagation in coal seams containing small faults, and analyze the characteristics of wave fields, dispersion and spectra of direct, reflected and transmitted channel waves. Based on different fault models with small throws (vertical offsets 1/4, 1/2, 3/4, one thickness of a coal seam; dips 90 degrees, 60 degrees, and 45 degrees), we address the influential effects of small faults on these waves. By virtue of the analysis above, we obtain some new insights into Rayleigh channel wave in coal seams with small faults, and discuss the application of such waves in exploration.
WOS关键词	MODE ; SH
WOS研究方向	Geochemistry & Geophysics
语种	英语
出版者	SCIENCE PRESS
WOS记录号	WOS:000454466600022
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/90256]
专题	地质与地球物理研究所_岩石圈演化国家重点实验室
通讯作者	Qiao YongHu
作者单位	1.Shanxi Normal Univ, Linfen 041000, Shanxi, Peoples R China 2.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China 3.Jilin Univ, Changchun 130026, Jilin, Peoples R China
推荐引用方式 GB/T 7714	Qiao YongHu,Teng JiWen,Pi JiaoLong. Rayleigh channel wave field and dispersion of coal seams with small faults[J]. CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,2018,61(12):4976-4987.
APA	Qiao YongHu,Teng JiWen,&Pi JiaoLong.(2018).Rayleigh channel wave field and dispersion of coal seams with small faults.CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,61(12),4976-4987.
MLA	Qiao YongHu,et al."Rayleigh channel wave field and dispersion of coal seams with small faults".CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION 61.12(2018):4976-4987.