A case study integrating numerical simulation and GB-InSAR monitoring to analyze flexural toppling of an anti-dip slope in Fushun open pit

CORC > 力学研究所 > 中国科学院力学研究所 > 流固耦合系统力学重点实验室(2012-)

	A case study integrating numerical simulation and GB-InSAR monitoring to analyze flexural toppling of an anti-dip slope in Fushun open pit
	Li Z; Wang JA; Li L; Wang LX(王理想); Liang RY
刊名	ENGINEERING GEOLOGY
	2015-10-30
通讯作者邮箱	zI28@zips.ualcron.edu ; wja@ustb.edu.cn ; lin.li02@aecom.com ; omega168@163.com ; rliang@uakron.edu
卷号	197 页码:20-32
关键词	Flexural toppling Anti-dip slope Numerical modeling CDEM GB-InSAR Monitoring
ISSN号	0013-7952
通讯作者	Liang, RY (reprint author), Univ Akron, Dept Civil Engn, Akron, OH 44325 USA.
产权排序	[Li, Zhao; Liang, Robert Y.] Univ Akron, Dept Civil Engn, Akron, OH 44325 USA; [Wang, Jin'an] Univ Sci & Technol Beijing, Sch Civil & Environm Engn, Beijing 100083, Peoples R China; [Li, Lin] AECOM, Cleveland, OH 44115 USA; [Wang, Lixiang] Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China
中文摘要	Toppling failure of rock slopes is a complicated mode due to a combination of both continuous and discontinuous deformation, especially in dealing with anti-dip rock slopes. In this paper, a novel continuum-based discrete element method (CDEM), which is useful in modeling the entire progressive process from continuous to discontinuous deformation, is proposed to analyze the deformation characteristics, the failure mechanism and the evolution process of a large-scale open pit slope with a typical anti-dip structure. To simulate the slope deformation, the shear strength reduction method (SSR) is adopted to represent the strength degradation of rock mass in the deterioration process. The simulated results are validated using data obtained from a field investigation and continuous monitoring by employing an advanced remote sensing technique called ground-based interferometric synthetic aperture radar (GB-InSAR). To analyze the evolution trend of the anti-dip slope, the subsequent toppling failure mode is predicted using the validated CDEM models. Based on a case study of a slope at the Fushun open pit mine (in Fushun, China), the unique geological structure with various joints and discontinuities, ground-water, intense rainfall, and mining activities are identified as the main triggers for different failure stages. The comparison between the field data and the simulation shows that CDEM accurately depicts the rock deformation and the failure pattern of the studied slope. The proposed numerical modeling techniques can be used for predicting failures of other similar excavated rock slopes. The simulated evolution process and the recorded deformation patterns help engineers to gain a better understanding of rock mass movement of anti-dip slopes, and the presented methodology could be utilized for similar studies and engineering designs. (C) 2015 Elsevier B.V. All rights reserved.
分类号	二类/Q1
类目[WOS]	Engineering, Geological ; Geosciences, Multidisciplinary
研究领域[WOS]	Engineering ; Geology
关键词[WOS]	DISCRETE ELEMENT METHOD ; FOLIATED ROCK SLOPES ; STABILITY ; STABILIZATION ; LANDSLIDE ; MODEL ; DEFORMATION ; AREAS ; CHINA ; SPAIN
收录类别	SCI ; EI
原文出处	http://dx.doi.org/10.1016/j.enggeo.2015.08.012
语种	英语
WOS记录号	WOS:000364252100003
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/58387]
专题	力学研究所_流固耦合系统力学重点实验室(2012-)
推荐引用方式 GB/T 7714	Li Z,Wang JA,Li L,et al. A case study integrating numerical simulation and GB-InSAR monitoring to analyze flexural toppling of an anti-dip slope in Fushun open pit[J]. ENGINEERING GEOLOGY,2015,197:20-32.
APA	Li Z,Wang JA,Li L,王理想,&Liang RY.(2015).A case study integrating numerical simulation and GB-InSAR monitoring to analyze flexural toppling of an anti-dip slope in Fushun open pit.ENGINEERING GEOLOGY,197,20-32.
MLA	Li Z,et al."A case study integrating numerical simulation and GB-InSAR monitoring to analyze flexural toppling of an anti-dip slope in Fushun open pit".ENGINEERING GEOLOGY 197(2015):20-32.