Engineering geological properties of altered rocks and implications for railway construction in the Sanjiang orogenic belt, Southwest China

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	Engineering geological properties of altered rocks and implications for railway construction in the Sanjiang orogenic belt, Southwest China
	Zhang, YS (Zhang, Yongshuang); Guo, CB (Guo, Changbao); Qu, YX (Qu, Yongxin); Song, YH (Song, Yuhuan)
刊名	BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT
	2011
卷号	70 期号:1 页码:143-152
关键词	Montmorillonitization Altered rock Swelling Hydrothermal action Yunnan-Tibet railway
ISSN号	1435-9529
英文摘要	The Yunnan-Tibet Railway, currently under construction, crosses five altered rock zones in the Sanjiang orogenic belt, southwestern China. They are mainly montmorillonitized rock zones formed by hydrothermal alteration. Based on field investigation and laboratory tests, this paper presents the geological characteristics and engineering properties of the altered rocks encountered during the construction of the railway. Being characterized by a high montmorillonite content, high degree of alteration, high physico-chemical activity and high swelling potential, these rocks always lead to engineering geological problems. The concept of "alteration coefficient" is put forward; the greater the alteration coefficient, the higher the alteration degree and swelling potential. Countermeasures are proposed to tackle the engineering problems during tunnel construction caused by the altered rock.
学科主题	工程地质学
WOS关键词	BEHAVIOR ; MINE
WOS研究方向	Engineering ; Geology
语种	英语
出版者	SPRINGER HEIDELBERG
WOS记录号	WOS:000286940200014
内容类型	期刊论文
源URL	[http://119.78.100.197/handle/2HKVOGP0/39446]
专题	中国地质调查局
作者单位	Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China
推荐引用方式 GB/T 7714	Zhang, YS ,Guo, CB ,Qu, YX ,et al. Engineering geological properties of altered rocks and implications for railway construction in the Sanjiang orogenic belt, Southwest China[J]. BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT,2011,70(1):143-152.
APA	Zhang, YS ,Guo, CB ,Qu, YX ,&Song, YH .(2011).Engineering geological properties of altered rocks and implications for railway construction in the Sanjiang orogenic belt, Southwest China.BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT,70(1),143-152.
MLA	Zhang, YS ,et al."Engineering geological properties of altered rocks and implications for railway construction in the Sanjiang orogenic belt, Southwest China".BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT 70.1(2011):143-152.