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Slope stability charts for two-layered purely cohesive soils based on finite-element limit analysis methods

Qian, Z. G., Li, A. J., Merifield, R. S. and Lyamin, A. V. 2015, Slope stability charts for two-layered purely cohesive soils based on finite-element limit analysis methods, International journal of geomechanics, vol. 15, no. 3, pp. 1-14, doi: 10.1061/(ASCE)GM.1943-5622.0000438.

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Title Slope stability charts for two-layered purely cohesive soils based on finite-element limit analysis methods
Author(s) Qian, Z. G.
Li, A. J.
Merifield, R. S.
Lyamin, A. V.
Journal name International journal of geomechanics
Volume number 15
Issue number 3
Start page 1
End page 14
Total pages 14
Publisher American Society of Civil Engineers (ASCE)
Place of publication Reston, Va.
Publication date 2015-06-01
ISSN 1532-3641
Keyword(s) Factor of safety
Landslides
Limit-equilibrium methods (LEMs)
Soil fill
Stability number
Science & Technology
Technology
Engineering, Geological
Engineering
BROWN FAILURE CRITERION
3-DIMENSIONAL ANALYSIS
LOADED SLOPES
EQUILIBRIUM
CLAY
Summary Stability charts for soil slopes, first produced in the first half of the twentieth century, continue to be used extensively as design tools, and draw the attention of many investigators. This paper uses finite-element upper and lower bound limit analysis to assess the short-term stability of slopes in which the slopematerial and subgrade foundation material have two distinctly different undrained strengths. The stability charts are proposed, and the exact theoretical solutions are bracketed to within 4.2% or better. In addition, results from the limit-equilibrium method (LEM) have been used for comparison. Differences of up to 20% were found between the numerical limit analysis and LEM solutions. It also shown that the LEM sometimes leads to errors, although it is widely used in practice for slope stability assessments.
Language eng
DOI 10.1061/(ASCE)GM.1943-5622.0000438
Field of Research 090501 Civil Geotechnical Engineering
Socio Economic Objective 870501 Civil Building Management and Services
HERDC Research category C1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2015, American Society of Civil Engineers
Persistent URL http://hdl.handle.net/10536/DRO/DU:30074962

Document type: Journal Article
Collection: School of Engineering
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