ASSESSMENT OF SLOPE STABILITY USING FEM | ||
| The International Conference on Civil and Architecture Engineering | ||
| Article 16, Volume 7, 7th International Conference on Civil and Architecture Engineering, May 2008, Pages 258-272 PDF (714.58 K) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/iccae.2008.45463 | ||
| Authors | ||
| Tarek N. Salem1; Khaled Hassan1; Mohsen Mashhour2; Ahmed AbuElella3 | ||
| 1Assoc. Prof., Dep. of Structural Eng., Faculty of Eng., Zagazig University, Zagazig, Egypt. | ||
| 2Prof. Dep. of Structural Eng., Faculty of Eng., Zagazig University, Zagazig, Egypt. | ||
| 3Ass. Lecturer, Dep. of Structural Eng., Faculty of Eng., Zagazig University, Zagazig, Egypt. | ||
| Abstract | ||
| Slope stability is one of the fundamental problems faced on a consistent basis by the majority of practicing geotechnical engineers. The studied slope may be a cut slope (excavation), or a formed slope (embankment). The objective of the current paper is to evaluate and assess the effect of many parameters affecting the stability of slopes and to produce a general equation for calculating the safety factors in simple and easy way. The finite element method is a very effective and versatile numerical tool, especially in nonlinear analysis, and consequently, a finite element code for soil and rock analysis (PLAXIS) is chosen for this paper. Results indicated that the slope height is probably the most effective parameter in the safety factors of slopes, followed by the effect of the presence of water beside or within the slope. Shear strength parameters and slope angle also affect the safety factor value, as indicated in the developed general equation for calculating the factor of safety in homogeneous soil slopes. The proposed equation is verified by comparing the calculated values obtained from that equation with PLAXIS results, and the maximum difference was about ±4%. Moreover, the results obtained from the proposed equation are compared with the results from Michalowski Charts (2002) and the maximum difference was about 7% in the conservative side, despite employing different analysis approaches. | ||
| Keywords | ||
| Slope Stability; Numerical analysis; Regression Analysis, Generalized Equation | ||
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