Advertisement

Modeling Earth Systems and Environment

, Volume 4, Issue 2, pp 591–600 | Cite as

Cut soil slope stability analysis along National Highway at Wozeka–Gidole Road, Ethiopia

  • Kedir Mohammed Bushira
  • Yoseph Birru Gebregiorgis
  • Ramish Kumar Verma
  • Zhuping Sheng
Original Article
  • 52 Downloads

Abstract

The Wozeka–Gidole road in Ethiopia experiences frequent slope failure and triggered during road construction. This study identified the actually failed slope to verify numerical results of both limit equilibrium method (LEM) and finite element method (FEM) with the actually failed slope. Modeling of the actually failed slope with the FEM-based PLAXIS software and LEM-based SLOPE/W software had been used to calculate the factor of safety (FOS). The comparative study of the LE methods shows that The Bishop, Janbu, Morgenstern-Price, GLE and Spencer methods yield in most cases identical FOS for circular slip surface. However, the ordinary method may underestimate the FOS. All LE methods, except the Ordinary methods, estimate higher FOS than FE analysis in PLAXIS. Numerical results of both FEM and LEM verify instability of the slope. In general, the model provides the possible major causes of slope instability and their possible remedial measures in the study area.

Keywords

Wozeka–Gidole Road Slope-stability analysis Factor of safety LEM FEM PLAXIS SLOPE/W 

References

  1. Abramson LW, Lee TS, Sharma S, Boyce GM (1996) 2002) Slope stability and stabilization methods. Wiley, New YorkGoogle Scholar
  2. Albataineh N (2006), Slope stability analysis using 2D and 3D methods. M.Sc. thesis, Akron University, Ohio, USAGoogle Scholar
  3. Biswas RN, Islam MN, Islam MN (2017) Modeling on management strategies of slope stability and susceptibility to landslides catastrophe at hilly region in Bangladesh. Model Earth Syst Environ 3:977.  https://doi.org/10.1007/s40808-017-0346-4 CrossRefGoogle Scholar
  4. Brinkgreve R, Swolfs W, Engin E, Waterman D, Chesaru A, Bonnier P, Galavi V (2013) PLAXIS 3D reference manual. Plaxis bv, DelftGoogle Scholar
  5. Conforti M, Pascale S, Robustelli G, Sdao F (2014) Evaluation of prediction capability of the artificial neural networks for mapping landslide susceptibility in the Turbolo River catchment (northern Calabria, Italy). Catena 113:236–250CrossRefGoogle Scholar
  6. Duncan JM (1996) State of the art: limit equilibrium and finite element analysis of slopes. J Geotechn Eng 122(7):577–596CrossRefGoogle Scholar
  7. GEO-SLOPE International Ltd. (2012) Stability modeling with SLOPE/W: an engineering methodology. http://www.geo-slope.com
  8. Griffiths DV, Lane PA (1999) Slope stability analysis by finite elements. Geotechnique 49(3):387–403CrossRefGoogle Scholar
  9. Mandal B, Mandal S (2016) Assessment of mountain slope instability in the Lish River basin of Eastern Darjeeling Himalaya using frequency ratio model (FRM). Model Earth Syst Environ 2:121.  https://doi.org/10.1007/s40808-016-0169-8 CrossRefGoogle Scholar
  10. Matsui T, San KC (1992) Finite element slope stability analysis by shear strength reduction technique. Soils Found 32(1):59–70CrossRefGoogle Scholar
  11. Michael EA, Samanta S (2016) Landslide vulnerability mapping (LVM) using weighted linear combination (WLC) model through remote sensing and GIS techniques. Model Earth Syst Environ 2:88.  https://doi.org/10.1007/s40808- CrossRefGoogle Scholar
  12. Sharma T, Singh O (2017) Soil erosion susceptibility assessment through geo-statistical multivariate approach in Panchkula district of Haryana, India Model. Earth Syst Environ 3:733.  https://doi.org/10.1007/s40808-017-0331-y CrossRefGoogle Scholar
  13. Shit PK, Bhunia GS, Maiti R (2016) Potential landslide susceptibility mapping using weighted overlay model (WOM). Model Earth Syst Environ 2:21.  https://doi.org/10.1007/s40808-016-0078-x CrossRefGoogle Scholar
  14. Singh TN, Singh DP (1992) Prediction of the instability of slopes in an opencast mine over the old surface and underground workings. Int J Min Reclam Environ 6(2):81–89CrossRefGoogle Scholar
  15. Stark TD, Choi H, McCone S (2005) Drained shear strength parameters for analysis of landslides. J Geotech Geoenviron Eng 131(5):575–588CrossRefGoogle Scholar
  16. Swan CC, Seo YK (1999) Limit state analysis of earthen slopes using dual continuum/FEM approaches. Int J Numer Anal Methods Geomech 23(12):1359–1371CrossRefGoogle Scholar

Copyright information

© Springer International Publishing AG, part of Springer Nature 2018

Authors and Affiliations

  1. 1.Universidad Autonoma de Baja CaliforniaMexicaliMexico
  2. 2.Department of Civil Engineering, Arbaminch Institute of TechnologyArba Minch UniversityArba MinchEthiopia
  3. 3.Texas A&M AgriLife Research CenterEl PasoUSA

Personalised recommendations