Numerical modeling of slope stability in Chouf Amar limestone quarry (M’sila, Algeria)

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Authors:

A.Saadoun, Badji Mokhtar University, Annaba, Algeria, Algeria, e‑mail: This email address is being protected from spambots. You need JavaScript enabled to view it., Abderrahmane Mira University, Bejaia, Algeria

A.Hafsaoui, Dr. Sc. (Tech.), Prof., Badji Mokhtar University, Annaba, Algeria, Algeria, e‑mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

Y.Khadri, Dr. Sc. (Tech.), Badji Mokhtar University, Annaba, Algeria, Algeria, e‑mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

M.Fredj, Badji Mokhtar University, Annaba, Algeria, Algeria, e‑mail: This email address is being protected from spambots. You need JavaScript enabled to view it., Abderrahmane Mira University, Bejaia, Algeria

Abstract:

Purpose. The aim of this paper is numerical modeling of the slope stability of limestone quarry in dry and wet cases.

Methodology. The study of slope stability was performed by the limit equilibrium method (LEM) through the SLIDE software, and numerical methods through PLAXIS and FLAC.

Findings. In this study, the presence of water in the marl layer has a heavy influence on the safety factor (SF), which allows for instability of the slope.

Originality. The originality of this work is based on two different approaches to determine the safety factor in the dry and wet cases through three methods, the limit equilibrium, finite element and finite difference methods (FEM, FDM).

Practical value. This study has shown that numerical modeling of the slope stability using three methods, LEM, FDM and FEM can be expected to produce similar results. The different methods indicate that the finite difference method in our case is the most efficient and can be used as a practical check for the other methods.

References.

1. Wang, G., Wu, F. and Ye, W., 2013. Stability analysis for toppling failure of unstable rock in three gorges reservoir area, China. Rock Charact. Model Eng Des Methods, pp. 431–435. DOI:10. 1201/b14917-77.

2. Gadri, L., Riheb, H., Zahri, F., Benghazi, Z., Boumezbeurm, A., Laid, B. M. and Raїs, K., 2015. The quarries edges stability in opencast mines: a case study of the Jebel Onk phosphate mine, NE Algeria. Arab J Geosci, 8, pp. 8987–8997. DOI: 10.1007/s12517-015-1887-3.

3. Jiang, Q., Qi, Z., Wie, W. and Zhou, C., 2015. Stability assessment of a high rock slope by strength reduction finite element method. Bull. Eng. Geol. Environ, 74, pp. 1153–1162.

4. Kainthola, A., Singh, P. K., Wasnik, A.B., Sazid, M. and Singh, T.N., 2012. Finite element analysis of road cut slopes using Hoek and Brown failure criterion. Int. J. Earth Sci. Eng., 5(5), pp. 1100‒1109.

5. Gupta, T., Rai, R., Jaiswal, A. and Srivastava, B. K., 2014. Sensitivity Analysis of Coal Rib Stability for Internal Mine Dump in Opencast Mine by Finite Element ModeIling. Geotech. Geol. Eng., 32, pp. 705‒712.

6. Saadoun, A., Hafsaoui, A. and Fredj, M., 2017. Landslide Study of Lands in Quarrys. Case Chouf Amar ‒ M’sila, Algeria. Contemporary Issues in Geoenvironmental Engineering, Sustainable Civil Infrastructures. DOI: 10.1007/978-3-319-61612-4_3.

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