Improvement of the finite-element-based limit equilibrium method to include changes in groundwater: a case study of a deforming bank slope from the Three Gorges Reservoir

doi:10.1007/s12665-018-7517-0

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	Improvement of the finite-element-based limit equilibrium method to include changes in groundwater: a case study of a deforming bank slope from the Three Gorges Reservoir
	Sun, Guanhua; Shi, Lu
刊名	ENVIRONMENTAL EARTH SCIENCES
	2018-05-01
卷号	77 期号:9 页码:15
关键词	Deforming slope Seepage force Reservoir water level fluctuation Three Gorges Reservoir Finite-element-based limit equilibrium method
ISSN号	1866-6280
DOI	10.1007/s12665-018-7517-0
英文摘要	Changes in groundwater are an important factor affecting slope stability. In this study, the finite-element-based limit equilibrium method (FELE), which does not require any predetermined assumptions, is improved to include groundwater. The seepage force in the improved FELE is directly regarded as a body force and can be transformed into the equivalent nodal force. Moreover, a practical technique of employing the signed distance function is used to represent the groundwater level, making the improved FELE insensitive to the mesh. An analysis of a benchmark slope is performed to validate the effectiveness of the improve FELE, and the results show that the seepage force has a significant influence on the stability of the slope. Moreover, a case study of a deforming bank slope from the Three Gorges Reservoir is analyzed by the improved FELE to study the relationships between the deformation and changes in the phreatic lines within the sliding body.
资助项目	'Five-twelfth' National Science and Technology Support Program[2014BAC18B01] ; Youth Innovation Promotion Association of the Chinese Academy of Sciences (CAS)
WOS研究方向	Environmental Sciences & Ecology ; Geology ; Water Resources
语种	英语
出版者	SPRINGER
WOS记录号	WOS:000431987400017
内容类型	期刊论文
源URL	[http://202.127.146.157/handle/2RYDP1HH/5337]
专题	中国科学院武汉植物园
通讯作者	Shi, Lu
作者单位	Chinese Acad Sci, State Key Lab Geomech & Geotech Engn, Inst Rock & Soil Mech, Wuhan, Hubei, Peoples R China
推荐引用方式 GB/T 7714	Sun, Guanhua,Shi, Lu. Improvement of the finite-element-based limit equilibrium method to include changes in groundwater: a case study of a deforming bank slope from the Three Gorges Reservoir[J]. ENVIRONMENTAL EARTH SCIENCES,2018,77(9):15.
APA	Sun, Guanhua,&Shi, Lu.(2018).Improvement of the finite-element-based limit equilibrium method to include changes in groundwater: a case study of a deforming bank slope from the Three Gorges Reservoir.ENVIRONMENTAL EARTH SCIENCES,77(9),15.
MLA	Sun, Guanhua,et al."Improvement of the finite-element-based limit equilibrium method to include changes in groundwater: a case study of a deforming bank slope from the Three Gorges Reservoir".ENVIRONMENTAL EARTH SCIENCES 77.9(2018):15.