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http://dx.doi.org/10.7843/kgs.2008.24.11.55

Comparison of Safety factor for an Anchored Slope in Accordance with the Effects of Load Transfer  

Kim, Sung-Kyu (Dept. of Civil, Architectural & Environmental, System Eng., Sungkyunkwan Univ.)
Kim, Wak-Kyung (Dept. of Civil, Architectural & Environmental, System Eng., Sungkyunkwan Univ.)
Park, Jong-Sik (Hanwha Institute of Construction Technology, Hanwha E&C Co, Ltd.)
Joo, Yong-Sun (Dept. of Civil, Architectural & Environmental, System Eng., Sungkyunkwan Univ.)
Kim, Tae-Hoon (Daewoo Institute of Construction Technology, Daewoo E&C Co. Ltd.)
Publication Information
Journal of the Korean Geotechnical Society / v.24, no.11, 2008 , pp. 55-60 More about this Journal
Abstract
This paper presents how the load transfer mechanism of the ground anchor affects on the stability analysis of anchored slope. The finite element analysis and the conventional limit equilibrium analysis on the anchored slope were performed and compared. The limit equilibrium analysis of the anchored slope is widely used in design practice due to the easiness of the analysis. However, the load transfer mechanism is not considered properly for the analysis. When the failure surface passes through the bonded length of an anchor, the anchor load is disregarded and the factor of safety for the anchored slope is smaller than it should be. In this study, the load transfer distribution was incorporated into the limit equilibrium stability analysis of the anchored slope and the results were compared with those of finite element analysis.
Keywords
Anchored slope stability; Finite element analysis; Ground anchors; Limit equilibrium analysis; Load transfer;
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  • Reference
1 ABAQUS, Version 6.4, Hibbit, Karlson & Sorensen Inc., Pawtucket, R.I., 2004.
2 Briaud, J.L., Lim, Y. (1999), "Tieback walls in sand: numerical simulation and design implications", Journal of Geotechnical and Geoenvironmental Engineering, ASCE, Vol.125, No.2, pp.101-110   DOI   ScienceOn
3 Matsui, T. and San, K.C. (1992), "Finite element slope stability analysis by shear strength reduction technique", Soils Found. Vol.32, No.1, pp.59-70   DOI
4 PCSTABL5 Manual, Federal Highway Administration U.S. Department of Transportation
5 Tenier, P. and Molier, P. (1982), "Influence of Concentrated Loads on Slope Stability", Canadian Geotechnical Journal, Vol.19, pp. 396-400, Feb   DOI
6 Zienkiewicz, O.C. and Taylor, R.L., 1989, "The finite element method", Vol.1, 4th edn. London, New York: McGraw-Hill
7 Davis, E.H. (1968), "Theories of plasticity and the failure of soil masses", In: Lee, I. K., editor, Soil mechanics: selected topics, London UK : Butterworth, pp.341-380
8 Duncan, J.M. and Dunlop, P. (1969), "Slopes in stiff fissured clays and soils", J. Soil Mech. Found. Div., ASCE, Vol.95, SM5, pp.467-492
9 Griffiths, D.V. and Lane. P.A. (1999), "Slope stability analysis by finite elements", Geotechnique, Vol.49, No.3, pp.387-403   DOI   ScienceOn
10 Duncan, J.M. (1996), "State of the art: limit equilibrium and finite-element analysis of slopes", J. Geotech. Engng, ASCE, Vol.122, No.7, pp.577-596   DOI   ScienceOn
11 Weerasinghe, R.B. and Littlejohn, G.S. (1977), "Load transfer and failure of anchorages in weak mudstone", In: Proc., Conference on Ground Anchorages and Anchored Structures, Institution of Civil Engineers, London
12 Ostermayer, H. and Sheele, F. (1977), "Research on Ground Anchors in Non Cohesive Soils", Sepcial session 4, IXth ICSMFE, Tokyo
13 BSI (1989), "British standard code of practice for ground anchors", London, England
14 Griffiths, D.V. (1985), "Numerical modeling of interfaces using conventional finite element", In: Proc. 5th Int. Conf. Num. Meth. Geomech., Nagoya, pp.837-844
15 Kondner, R.L. (1963), "Hyperbolic stress-strain response: cohesive soils", Journal of the Soil Mechanics and Foundations Division, ASCE, Vol.89, SM1, pp.115-143
16 AASHTO (1990), "Permanent ground anchor specification In-situ soil improvement technique", AASHTO-AGC-ARTBA TF27 Rep., AASHTO, Washington, D.C
17 Fredlund, D.G. and Krahn, J. (1977), "Comparison of slope stability ethod of analysis", Canadian Geotechnical Journal, Vol.13, No.3, pp.429-439
18 Snitbhan, N. and Chen, W. F. (1976), "Elastic-plastic large deformation analysis of soil slopes", Comput. Struct. 9, 567-577   DOI   ScienceOn
19 Fredlund, D.G., Krahn, J. and Pufahl, D.E. (1981), "The methods", Proceedings of Tenth International Conference on Soil Mechanics and Foundations Engineering, Stockholm, Sweden, 3, pp.409-416
20 Kim, N.K. (2003), "Performance of tension and compression anchors in weathered soil", Journal of Geotechnical and Geoenvironmental Engineering, ASCE, Vol.129, No.2, pp.1138-1150   DOI   ScienceOn