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The Stability Analysis Method of the Cohesive Granular Slope on the Basis of Graph Theory

文献类型：期刊论文

作者Guan, Yanpeng1; Liu, Xiaoli1; Wang, Enzhi1; Wang, Sijing1,2
刊名MATERIALS
出版日期2017-03-01
卷号10期号:3
关键词Stability Analysis Progressive Failure Slope Stability Dem (Discrete Element Method) Particle Macro-contact
ISSN号1996-1944
DOI10.3390/ma10030240
文献子类Article
英文摘要This paper attempted to provide a method to calculate progressive failure of the cohesive-frictional granular geomaterial and the spatial distribution of the stability of the cohesive granular slope. The methodology can be divided into two parts: the characterization method of macro-contact and the analysis of the slope stability. Based on the graph theory, the vertexes, the edges and the edge sequences are abstracted out to characterize the voids, the particle contact and the macro-contact, respectively, bridging the gap between the mesoscopic and macro scales of granular materials. This paper adopts this characterization method to extract a graph from a granular slope and characterize the macro sliding surface, then the weighted graph is analyzed to calculate the slope safety factor. Each edge has three weights representing the sliding moment, the anti-sliding moment and the braking index of contact-bond, respectively, E1E2E3E1E2E3. The safety factor of the slope is calculated by presupposing a certain number of sliding routes and reducing Weight E-3 repeatedly and counting the mesoscopic failure of the edge. It is a kind of slope analysis method from mesoscopic perspective so it can present more detail of the mesoscopic property of the granular slope. In the respect of macro scale, the spatial distribution of the stability of the granular slope is in agreement with the theoretical solution.
WOS关键词BONDED-PARTICLE MODEL ; NUMERICAL-ANALYSIS ; ROCK ; ASSEMBLIES
WOS研究方向Materials Science
语种英语
WOS记录号WOS:000400863500023
出版者MDPI AG
资助机构National Key Research and Development Plan(2016YFC0501104) ; National Natural Science Foundation-Outstanding Youth Foundation(51522903) ; National Natural Science Foundation of China(U1361103 ; Open Research Fund Program of the State Key Laboratory of Hydroscience and Engineering(2013-KY-06 ; 51479094 ; 2015-KY-04 ; 51379104) ; 2016-KY-02) ; National Key Research and Development Plan(2016YFC0501104) ; National Natural Science Foundation-Outstanding Youth Foundation(51522903) ; National Natural Science Foundation of China(U1361103 ; Open Research Fund Program of the State Key Laboratory of Hydroscience and Engineering(2013-KY-06 ; 51479094 ; 2015-KY-04 ; 51379104) ; 2016-KY-02) ; National Key Research and Development Plan(2016YFC0501104) ; National Natural Science Foundation-Outstanding Youth Foundation(51522903) ; National Natural Science Foundation of China(U1361103 ; Open Research Fund Program of the State Key Laboratory of Hydroscience and Engineering(2013-KY-06 ; 51479094 ; 2015-KY-04 ; 51379104) ; 2016-KY-02) ; National Key Research and Development Plan(2016YFC0501104) ; National Natural Science Foundation-Outstanding Youth Foundation(51522903) ; National Natural Science Foundation of China(U1361103 ; Open Research Fund Program of the State Key Laboratory of Hydroscience and Engineering(2013-KY-06 ; 51479094 ; 2015-KY-04 ; 51379104) ; 2016-KY-02)
源URL[http://ir.iggcas.ac.cn/handle/132A11/52906]  
专题地质与地球物理研究所_中国科学院页岩气与地质工程重点实验室
通讯作者Liu, Xiaoli
作者单位1.Tsinghua Univ, State Key Lab Hydro Sci & Engn, Beijing 100084, Peoples R China
2.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China
推荐引用方式
GB/T 7714		 Guan, Yanpeng,Liu, Xiaoli,Wang, Enzhi,et al. The Stability Analysis Method of the Cohesive Granular Slope on the Basis of Graph Theory[J]. MATERIALS,2017,10(3).
APA Guan, Yanpeng,Liu, Xiaoli,Wang, Enzhi,&Wang, Sijing.(2017).The Stability Analysis Method of the Cohesive Granular Slope on the Basis of Graph Theory.MATERIALS,10(3).
MLA Guan, Yanpeng,et al."The Stability Analysis Method of the Cohesive Granular Slope on the Basis of Graph Theory".MATERIALS 10.3(2017).

入库方式： OAI收割

来源：地质与地球物理研究所

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