A study on the uplift mechanism of Tongjiezi dam using a coupled hydro-mechanical model

doi:10.1016/j.enggeo.2010.10.013

	A study on the uplift mechanism of Tongjiezi dam using a coupled hydro-mechanical model
	Liu, Xiaoli 1,3; Wang, Sijing 1,2; Wang, Enzhi 1
刊名	ENGINEERING GEOLOGY
	2011-01-10
卷号	117 期号:1-2 页码:134-150
关键词	Uplift mechanism Representative elementary volume (REV) Coupled hydro-mechanical model Time-dependent deformation
ISSN号	0013-7952
DOI	10.1016/j.enggeo.2010.10.013
文献子类	Article
英文摘要	During filling in 1992 of the Tongiiezi reservoir, in Southwest China, it was noticed that the dam body and the rock masses on the right side of the valley were uplifted up to 22.2 mm and 24.3 mm respectively. After reservoir filling in 1993, the uplift continued, but the rate decreased, and the measured maximum uplift increased from 22.2 mm to 27.5 mm in the dam body and from 24.3 mm to 28.9 mm in the rock masses from 1993 to 2004. Based on the geological features of the dam site and observed geomechanics data, a numerical method is used to evaluate the representative elementary volume (REV) and to identify the parameters related to the mechanical and hydraulic properties of the rock mass. Furthermore, a coupled hydro-mechanical model is presented to describe the uplift process. The simulated results agree well with those measured. In addition, the time-dependent deformation is studied in the laboratory and numerically. It is concluded that, with the specific hydrogeological conditions at the Tongjiezi dam site, hydro-mechanical coupling during and after the reservoir impoundment is the main factor contributing to the uplift, and the time-dependent deformation is due to the rheological behavior of rock masses under seepage pressure. (C) 2010 Elsevier B.V. All rights reserved.
WOS关键词	ROCK MASSES ; STRENGTH ; STRESS ; CLASSIFICATION ; SYSTEM ; SIZE ; FLOW
WOS研究方向	Engineering ; Geology
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000286853100014
资助机构	National Natural Science Foundation of China (NSFC)(51009079 ; National Natural Science Foundation of China (NSFC)(51009079 ; State key Laboratory of Hydroscience and Engineering(sklhse-2010-02) ; State key Laboratory of Hydroscience and Engineering(sklhse-2010-02) ; Gongzui Hydropower General Plant of Dadu Hydropower Development CO., LTD ; Gongzui Hydropower General Plant of Dadu Hydropower Development CO., LTD ; 40872152) ; 40872152) ; National Natural Science Foundation of China (NSFC)(51009079 ; National Natural Science Foundation of China (NSFC)(51009079 ; State key Laboratory of Hydroscience and Engineering(sklhse-2010-02) ; State key Laboratory of Hydroscience and Engineering(sklhse-2010-02) ; Gongzui Hydropower General Plant of Dadu Hydropower Development CO., LTD ; Gongzui Hydropower General Plant of Dadu Hydropower Development CO., LTD ; 40872152) ; 40872152) ; National Natural Science Foundation of China (NSFC)(51009079 ; National Natural Science Foundation of China (NSFC)(51009079 ; State key Laboratory of Hydroscience and Engineering(sklhse-2010-02) ; State key Laboratory of Hydroscience and Engineering(sklhse-2010-02) ; Gongzui Hydropower General Plant of Dadu Hydropower Development CO., LTD ; Gongzui Hydropower General Plant of Dadu Hydropower Development CO., LTD ; 40872152) ; 40872152) ; National Natural Science Foundation of China (NSFC)(51009079 ; National Natural Science Foundation of China (NSFC)(51009079 ; State key Laboratory of Hydroscience and Engineering(sklhse-2010-02) ; State key Laboratory of Hydroscience and Engineering(sklhse-2010-02) ; Gongzui Hydropower General Plant of Dadu Hydropower Development CO., LTD ; Gongzui Hydropower General Plant of Dadu Hydropower Development CO., LTD ; 40872152) ; 40872152)
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/74152]
专题	中国科学院地质与地球物理研究所
通讯作者	Liu, Xiaoli
作者单位	1.Tsinghua Univ, State Key Lab Hydrosci & Engn, Beijing 100084, Peoples R China 2.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China 3.Ecole Polytech Fed Lausanne, Rock Mech Lab LMR, CH-1015 Lausanne, Switzerland
推荐引用方式 GB/T 7714	Liu, Xiaoli,Wang, Sijing,Wang, Enzhi. A study on the uplift mechanism of Tongjiezi dam using a coupled hydro-mechanical model[J]. ENGINEERING GEOLOGY,2011,117(1-2):134-150.
APA	Liu, Xiaoli,Wang, Sijing,&Wang, Enzhi.(2011).A study on the uplift mechanism of Tongjiezi dam using a coupled hydro-mechanical model.ENGINEERING GEOLOGY,117(1-2),134-150.
MLA	Liu, Xiaoli,et al."A study on the uplift mechanism of Tongjiezi dam using a coupled hydro-mechanical model".ENGINEERING GEOLOGY 117.1-2(2011):134-150.