International Journal of Scientific & Technology Research

Home About Us Scope Editorial Board Blog/Latest News Contact Us
10th percentile
Powered by  Scopus
Scopus coverage:
Nov 2018 to May 2020


IJSTR >> Volume 10 - Issue 2, February 2021 Edition

International Journal of Scientific & Technology Research  
International Journal of Scientific & Technology Research

Website: http://www.ijstr.org

ISSN 2277-8616

Finite Element Slope Stability Analysis By Geofoam Technique

[Full Text]



Mahmoud S. El-kady, Essam Farouk, Wassef Ounaies, Muhammad Tariq Bashir



Slope Stability, Geofoam, Local Failure, Slip Failure.



Slope stability is one of the most important problems in geotechnical engineering because failure could cause catastrophic environmental and human disaster, in addition to large economical losses due to such failure. The simplest solution to handle with slope failures is to avoid the failed zones and choose safer locations to move the projects which are decided to be constructed nearby the failed slopes. The paper delineates the effects of geofoam on soft clayey slopes which contain weak layers. This emphasis is given to the slope geometry, loading, and geofoam material that are numerically simulated using the finite element technique. In addition, the proposed stabilizing system is employed, presented, and analyzed. The analysis of the embankment is performed by the limit equilibrium analysis program (Slide V6.003). The increase in the geofoam thickness from 0.0m to 1.0m resulted in a noticeable increase in the safety factor for loaded and unloaded slopes. On another hand, increase in geofoam thickness from 1.0m up to 4.0m in case of unloaded slope, the safety factor is still constant for about 2.10. A consistent increase in the safety factors is noticed as a result of increasing the geofoam thickness from 0.0m up to 4.0m. Moreover, there is a slight decrease in the safety factor for loaded slopes during different values of geofoam position from the road level. The main factors which affect the slopes stabilized with geofoam such as, geofoam width, thickness, and position of the geofoam from the road level are also presented and discussed.



[1] Capilleri PP, Motta E, Raciti E. Experimental study on native plant root tensile strength for slope stabilization. Procedia Engineering. 2016;158:116-21.
[2] Cho SE. Probabilistic assessment of slope stability that considers the spatial variability of soil properties. Journal of geotechnical and geoenvironmental engineering. 2010;136(7):975-84.
[3] Duncan JM, Wright SG, Brandon TL. Soil strength and slope stability: John Wiley & Sons; 2014.
[4] Isakov A, Moryachkov Y. Estimation of slope stability using two-parameter criterion of stability. International Journal of Geomechanics. 2014;14(3):06014004.
[5] Stark TD, Hussain M. Empirical correlations: drained shear strength for slope stability analyses. Journal of geotechnical and geoenvironmental engineering. 2013;139(6):853-62.
[6] Xu J-s, Li Y-x, Yang X-l. Seismic and static 3D stability of two-stage slope considering joined influences of nonlinearity and dilatancy. KSCE Journal of Civil Engineering. 2018;22(10):3827-36.
[7] Xu J-s, Yang X-l. Seismic stability of 3D soil slope reinforced by geosynthetic with nonlinear failure criterion. Soil Dynamics and Earthquake Engineering. 2019;118:86-97.
[8] Chowdhury, R., Flentje, P., and Bhattacharya, G. Geotechnical Slope Analysis. Taylor & Francis Group, London, UK; 2010.
[9] Rashad, R. H. Analysis of Slope Stabilizing Piles. M. Sc. Thesis, Structural Eng. Dept., Zagazig University; 2012.
[10] Bhavikatti, S. S. Finite Element Analysis. New Age International, New Delhi, India; 2005.
[11] Cheng, Y.M., Lansivaara, T. and Wei, W.B. Two-Dimensional Slope Stability Analysis by Limit Equilibrium and Strength Reduction Methods. Computers and Geotechnics, Vol. 34, pp.137–150; 2007.
[12] Cheng, Y.M., and Lau, C.K. Slope stability and stabilization (new methods and insight). Routledge, Taylor & Francis Group; 2008.