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Slope stability analysis based on elasto-plastic finite element method
Zheng, H; Liu, DF; Li, CG
2005
Source PublicationINTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN ENGINEERING
ISSN0029-5981
Volume64Issue:14Pages:1871-1888
Abstract

The paper deals with two essential and related closely processes involved in the finite element slope stability analysis in two-dimensional problems, i.e. computation of the factors of safety (FOS) and location of the critical slide surfaces. A so-called phi-v inequality, sin 0 >= 1 - 2v is proved for any elasto-plastic material satisfying Mohr-Coulomb's yield criterion. In order to obtain an FOS of high precision with less calculation and a proper distribution of plastic zones in the critical equilibrium state, it is stated that the Poisson's ratio v should be adjusted according to the principle that the phi-v inequality always holds as reducing the strength parameters c and phi. While locating the critical slide surface represented by the critical slide line (CSL) under the plane strain condition, an initial value problem of a system of ordinary differential equations defining the CSL is formulated. A robust numerical solution for the initial value problem based on the predictor-corrector method is given in conjunction with the necessary and sufficient condition ensuring the convergence of solution. A simple example, the kinematic solution of which is available, and a challenging example from a hydraulic project in construction are analysed to demonstrate the effectiveness of the proposed procedures. Copyright (c) 2005 John Wiley & Sons, Ltd.

KeywordSlope Stability Elasto-plastic Finite Element Method The Factor Of Safety (Fos) The Critical Slide Line (Csl)
DOI10.1002/nme.1406
Indexed BySCI
Language英语
WOS Research AreaEngineering ; Mathematics
WOS SubjectEngineering, Multidisciplinary ; Mathematics, Interdisciplinary Applications
WOS IDWOS:000233877300002
PublisherJOHN WILEY & SONS LTD
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Document Type期刊论文
Identifierhttp://119.78.100.198/handle/2S6PX9GI/3140
Collection岩土力学所知识全产出_期刊论文
AffiliationChina Three Gorges Univ, Coll Civil & Hydroelect Engn; Chinese Acad Sci, Inst Rock & Soil Mech
Recommended Citation
GB/T 7714
Zheng, H,Liu, DF,Li, CG. Slope stability analysis based on elasto-plastic finite element method[J]. INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN ENGINEERING,2005,64(14):1871-1888.
APA Zheng, H,Liu, DF,&Li, CG.(2005).Slope stability analysis based on elasto-plastic finite element method.INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN ENGINEERING,64(14),1871-1888.
MLA Zheng, H,et al."Slope stability analysis based on elasto-plastic finite element method".INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN ENGINEERING 64.14(2005):1871-1888.
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