Spatial distribution of inter-layer shear zones at Gaobazhou dam site, Qingjiang River, China

	Spatial distribution of inter-layer shear zones at Gaobazhou dam site, Qingjiang River, China
	Xiao, YJ ; Lee, CF ; Wang, SX
刊名	ENGINEERING GEOLOGY
	2000-03-01
卷号	55 期号:4 页码:227-239
关键词	inter-layer shear zone rescaled range (R/S) analysis SCT-R/S model
ISSN号	0013-7952
文献子类	Article
英文摘要	The spatial distribution of inter-layer shear zones is studied, based on the fully mapped inter-layer shear zones at the Gaobazhou dam site on the Qingjiang River in Hubei province, China. The field observations revealed that two types of inter-layer shear zone, under-developed and well-developed, are distributed differently. The former are associated with the incompetent rock layers, and the latter are controlled by the inter-bed folds and lithological properties of the strata. To represent their lithological properties geomechanically, data on strength by the Schmidt hammer test and thickness of each field-identified rock layer were collected to form strength sequences and thickness sequences. The adjacent rock layers of similar strength are then grouped, and two grouped sequences are combined into a single sequence, whose individual term is the strength weighted by the exponential function value of the centralized thickness (SCT). The rescaled range (RS) analysis results of SCT (SCT-R/S), taking into account the presence of inter-bed folds, are in good agreement with RIS analysis results of the spacing sequence of the well-developed inter-layer shear zones. Thus the SCT-R/S model has the potential to predict their spatial distributions. (C) 2000 Elsevier Science B.V. All rights reserved.
WOS研究方向	Engineering ; Geology
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000086323600002
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/75947]
专题	中国科学院地质与地球物理研究所
通讯作者	Lee, CF
作者单位	1.Univ Hong Kong, Dept Civil Engn, Hong Kong, Peoples R China 2.Chinese Acad Sci, Inst Geol, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Xiao, YJ,Lee, CF,Wang, SX. Spatial distribution of inter-layer shear zones at Gaobazhou dam site, Qingjiang River, China[J]. ENGINEERING GEOLOGY,2000,55(4):227-239.
APA	Xiao, YJ,Lee, CF,&Wang, SX.(2000).Spatial distribution of inter-layer shear zones at Gaobazhou dam site, Qingjiang River, China.ENGINEERING GEOLOGY,55(4),227-239.
MLA	Xiao, YJ,et al."Spatial distribution of inter-layer shear zones at Gaobazhou dam site, Qingjiang River, China".ENGINEERING GEOLOGY 55.4(2000):227-239.