Deep weathering of a group of thick argillaceous limestone rocks near Three Gorges Reservoir, Central China

doi:10.1016/j.ijrmms.2009.03.006

	Deep weathering of a group of thick argillaceous limestone rocks near Three Gorges Reservoir, Central China
	Qi Shengwen 2; Qi, Yue Zhong 1; Wu Faquan 2; Chang Zhonghua 2
刊名	INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES
	2009-07-01
卷号	46 期号:5 页码:929-939
关键词	Weathering Argillaceous limestone Three Gorges Reservoir Urban development Geohazards Landslides Sinkhole Mountain environment Rock mass characterization
ISSN号	1365-1609
DOI	10.1016/j.ijrmms.2009.03.006
文献子类	Article
英文摘要	Rock mass characterization is one of the most basic and important tasks in rock mechanics and engineering. Literature review indicates that although there are many publications available on weathered rocks, there are few reports in English on weathered argillaceous limestone rocks and their chemical and mechanical properties. This paper presents a case study of characterizing a group of highly weathered thick argillaceous limestone rocks. Most importantly, they can be easily and quickly decomposed into soils after they are exposed due to excavation. Consequently, they would substantially lose their mechanical strengths. Geohazards such as landslides and sinkholes could occur in uncovered highly weathered argillaceous limestone rocks. The problematic weathered rocks were found during the development of a new town in upper mountains above the Three Gorges Reservoir on Yangtze River in Central China in the past 20 years. The factual data are presented on the changes of chemical compositions and mechanical properties of the weathered argillaceous limestone rocks due to chemical weathering. Some empirical correlations are given to quantify the changes in their uniaxial compressive strength and deformation moduli in terms of their contents of calcium carbonate. The data and findings presented in the paper can be useful to future urban development in geologically poor mountainous environments occupied by highly weathered argillaceous limestone rocks in the world. (C) 2009 Elsevier Ltd. All rights reserved.
WOS关键词	ENGINEERING PROPERTIES ; MOUNTAINOUS AREA ; HONG-KONG ; GRANITE ; GENERATION ; PROFILES ; BEHAVIOR ; ANKARA
WOS研究方向	Engineering ; Mining & Mineral Processing
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000267862200011
资助机构	China Natural Science Foundation(40772188 ; China Natural Science Foundation(40772188 ; 50729904) ; 50729904) ; China Natural Science Foundation(40772188 ; China Natural Science Foundation(40772188 ; 50729904) ; 50729904) ; China Natural Science Foundation(40772188 ; China Natural Science Foundation(40772188 ; 50729904) ; 50729904) ; China Natural Science Foundation(40772188 ; China Natural Science Foundation(40772188 ; 50729904) ; 50729904)
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/71391]
专题	中国科学院地质与地球物理研究所
通讯作者	Qi, Yue Zhong
作者单位	1.Univ Hong Kong, Dept Civil Engn, Hong Kong, Hong Kong, Peoples R China 2.Chinese Acad Sci, Key Lab Geomech, Inst Geol & Geophys, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Qi Shengwen,Qi, Yue Zhong,Wu Faquan,et al. Deep weathering of a group of thick argillaceous limestone rocks near Three Gorges Reservoir, Central China[J]. INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES,2009,46(5):929-939.
APA	Qi Shengwen,Qi, Yue Zhong,Wu Faquan,&Chang Zhonghua.(2009).Deep weathering of a group of thick argillaceous limestone rocks near Three Gorges Reservoir, Central China.INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES,46(5),929-939.
MLA	Qi Shengwen,et al."Deep weathering of a group of thick argillaceous limestone rocks near Three Gorges Reservoir, Central China".INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES 46.5(2009):929-939.