Advertisement

Finite element slope stability analysis of Souk Tleta dam by shear strength reduction technique

  • Ryma Afiri
  • Smail Gabi
Technical Note
  • 333 Downloads
Part of the following topical collections:
  1. Topical Collection from GeoMEast 2017 – Sustainable Civil Infrastructures: Innovative Infrastructure Geotechnology

Abstract

Slope stability analysis of earth dam is very important to ascertain the stability of the structure. The stability of earth dam depends on its geometry, components materials, water pressure and the forces to which it is subjected. Souk Tleta earth dam, currently under construction, is located on Bougdoura River, in north Algeria. The main purpose of the dam is to store surface water, for irrigation and domestic supply. In this study, reducing gradually the shear strength parameters technique is used to analyze the static slope stability of Souk Tleta zoned embankment dam based on the numerical simulation using Plaxis 2D finite element software. The deformations within the dam and the foundation at the end of construction and reservoir impoundment loading conditions and the corresponding factor of safety have been simulated. The results show that the displacements occurred in the dam body and foundation are the largest at the end of construction and lower during the reservoir filling. The safety factor in the different conditions decreases with the increase in reservoir water level.

Keywords

Slope stability Static analysis Earth dam Finite element software Factor of safety Shear strength reduction Displacement 

References

  1. 1.
    Bishop AW (1955) The use of the slip circle in the stability analysis of slopes. Géotechnique 5(1):7–17CrossRefGoogle Scholar
  2. 2.
    Brinkgreve RBJ, Engin E, Swolfs WM (2010) PLAXIS 2D 2010 user manual, Plaxis bv. Deft, the Netherland. ISBN-13: 978-90-76016-08-5Google Scholar
  3. 3.
    Cala M, Flisiak J (2003) Slope stability analysis with numerical and limit equilibrium methods. In: 15th international conference computer methods in mechanics, Gliwice, Poland, pp 1–4Google Scholar
  4. 4.
    Cheng YM, Lansivaara T, Wei WB (2007) Two-dimensional slope stability analysis by limit equilibrium and strength reduction methods. Comput Geotech 34:137–150CrossRefGoogle Scholar
  5. 5.
    Dawson EM, Roth WH, Drescher A (1999) Slope stability analysis by strength reduction. Geotechnique 49(6):835–840CrossRefGoogle Scholar
  6. 6.
    Donald IB, Giam SK (1988) Application of the nodal displacement method to slope stability analysis. In: Proceedings of the fifth Australia-New Zealand conference on geomechanics Sydney, Australia, pp 456–460Google Scholar
  7. 7.
    Fellenius W (1927) Erdstatische Berechnungen Mit Reibung Und Kohaesion. Ernst, BerlinGoogle Scholar
  8. 8.
    Griffiths DV, Lane PA (1999) Slope stability analysis by finite elements. Geotechnique 49(3):387–403CrossRefGoogle Scholar
  9. 9.
    Janbu N (1973) Slope stability computations. In: Hirschfield E, Poulos S (eds) Embankment dam—engineering. Wiley, New York, pp 47–86Google Scholar
  10. 10.
    Kainthola A, Singh PK, Wasnik AB, Sazid M, Singh TN (2012) Finite element analysis of road cut slopes using Hoek and Brown failure criterion. Int J Earth Sci Eng 5(5):1100–1109Google Scholar
  11. 11.
    Khanna R, Datta M, Ram GV (2017) Influence of core thickness on stability of downstream slope of earth and rockfill dams under end-of-construction and steady-state-seepage: a comparison. Int J Geotech Eng. doi: 10.1080/19386362.2017.1318230 CrossRefGoogle Scholar
  12. 12.
    Krishna PA (2006) Slope stability evaluations by limit equilibrium and finite element methods. Doctoral Thesis at NTN. ISBN:82-471-7881-8Google Scholar
  13. 13.
    Matsui T, San KC (1992) Finite element slope stability analysis by shear strength reduction technique. Soils Found 32(1):59–70CrossRefGoogle Scholar
  14. 14.
    Morgenstern NR, Price VE (1965) The analysis of the stability of general slip surfaces. Geotechnique 15(1):79–93CrossRefGoogle Scholar
  15. 15.
    Maji VB (2017) An insight into slope stability using strength reduction technique. Geol Soc India 89(1):77–81. doi: 10.1007/s12594-017-0561-7 CrossRefGoogle Scholar
  16. 16.
    Naylor DJ (1982) Finite elements and slope stability. Numerical Methods in Geomechanics. Springer, Dordrecht, pp 229–244. doi: 10.1007/978-94-009-7895-9_10 CrossRefGoogle Scholar
  17. 17.
    Rawat S, Gupta AK (2016) Analysis of a nailed soil slope using limit equilibrium and finite element methods. Int J Geosynth Ground Eng. doi: 10.1007/s40891-016-0076-0 CrossRefGoogle Scholar
  18. 18.
    Roosta RM, Sadaghyani MH, Pak A (2005) Strength reduction technique in stability analysis of jointed rock slopes. Int J Civ Eng 3(3&4):152–165Google Scholar
  19. 19.
    Rachez X, Billaux D, Hart R (2002) Slope stability analysis with integrated shear strength reduction algorithm. Numerical Methods in Geomechanical Engineering. Presses de I’ENPC/LCPC, Paris, pp 731–736Google Scholar
  20. 20.
    Spencer EE (1967) A method of the analysis of the stability of embankments assuming parallel interslice forces. Géotechnique 17:11–26CrossRefGoogle Scholar
  21. 21.
    Terzaghi K (1943) Theoretical soil mechanics. Wiley, New YorkCrossRefGoogle Scholar
  22. 22.
    Ugai K (1989) A method of calculation of global safety factor of slopes by elasto-plastic FEM. Soils Found 29(2):190–195CrossRefGoogle Scholar
  23. 23.
    Ugai K, Leshchinsky D (1995) Three-dimensional limit equilibrium and finite element analyses: a comparison of results. Soils Found 35:1–7CrossRefGoogle Scholar
  24. 24.
    Uromeihy A, Barzegari G (2007) Evaluation and treatment of seepage problems at Chapar-Abad Dam. Iran Eng Geol 91:219–228CrossRefGoogle Scholar
  25. 25.
    US Army Corps of Engineers (2003) Slope stability engineer manual No. 1110-2-1902 in: EM 1110-2-1902 US Army Corps of Engineers Washington, DC 20314-1000Google Scholar
  26. 26.
    Vrubel J, Říha J (2017) Discussion on the safety factors of slopes recommended for small dams. Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis 65(2):569–576. doi: 10.11118/actaun201765020569 CrossRefGoogle Scholar
  27. 27.
    Yuzhen Yu, Zhang B (2005) Stability of earth–rockfill dams: influence of geometry on the three-dimensional effect. Comput Geotech 32:326–339CrossRefGoogle Scholar
  28. 28.
    Zheng H, Liu DF, Li CG (2005) Slope stability analysis based on elastoplastic finite element method. Int J Numer Methods Eng 64:1871–1888CrossRefGoogle Scholar
  29. 29.
    Zheng H, Sun G, Liu D (2009) A practical procedure for searching critical slip surfaces of slopes based on the strength reduction technique. Comput Geotech 36:1–5CrossRefGoogle Scholar
  30. 30.
    Zienkiewicz OC, Humpheson C, Lewis RW (1975) Associated and non-associated viscoplasticity and plasticity in soil mechanics. Géotechnique 25(4):671–689CrossRefGoogle Scholar

Copyright information

© Springer International Publishing AG 2017

Authors and Affiliations

  1. 1.Geomaterials, Environment and Development LaboratoryUniversity Mouloud Mammeri of Tizi-OuzouTizi OuzouAlgeria

Personalised recommendations