Abstract
The experience which accumulated over many years on problems of slope instability in quarries and opencast mines led to the development of several reliable methodologies for predicting discontinuities and selecting related consolidation works. Sloped bench faces that compose the overall slope in the studied case in this paper are evaluated from the stability prospective by applying a variety of stability analysis methods such as stereographic projection and software methods. The adopted approach is based on laboratory tests on understudied samples to designate the mechanical parameters and numerical modeling by implementing the finite element method. The latter, a vital tool to the quantitative determination of deformation mechanisms in large slope instabilities, is used to unravel the uncertainty of mechanical homogeneity properties of the involved materials at the level of discrete meshes in numerical computations that type of application proposes a procedural combination of an assortment of calculation stability methods through three steps. The first step is to quantify the alteration and fracturing conditions and to determine the mechanical parameters of Kef Essenoun rock mass by using slope mass rating (SMR) classification scheme, developed by Romana, to depict the strength of an individual rock slope. This system is based on the rock mass rating (RMR) geo-mechanical classification system of rocks, developed by Bieniawski, who refurbished that system with quantitative guidelines to get the rate of influence of adverse joint orientations. The second step is to uses the abacus method to estimate the stability of open-pit mines. The last step is to use a numerical modeling by applying Plaxis 8.2 calculation code.
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References
Abd-Allah AMA, El-Sawy EK, El-Sayed SAS, El-Fakharani A, Mohammed Amin MS (2013) Rock slope stability and design in Arafat–Muzdalifa area, Saudi Arabia. Arab J Geosci. doi:10.1007/s12517-013-1030-2
Alemdag S, Akgun A, Kaya A, Gokceoglu C (2014) A large and rapid planar failure: causes, mechanism, and consequences (Mordut, Gumushane, Turkey). Arab J Geosci 7(3):1205–1221
Bieniawski ZT (1976) Rock mass classification of jointed rock masses. In: Bieniawski ZT (ed) Exploration for rock engineering. Balkema, Johannesbourg, pp 97–106
Bieniawski ZT (1979) Engineering classification of jointed rock masses. Trans Soc Afr Inst Civil Eng 15:335–344
Bieniawski ZT (1984) Rock mechanics design in mining and tunneling. A.A. Balkema, Rotterdam, p 272
Bieniawski ZT (1989) Engineering rock mass classifications. John Wiley & Sons, New York, p 251
Budetta P, De Luca C (2015) Wedge failure hazard assessment by means of a probabilistic approach for an unstable sea-cliffin. Nat Hazards 76:1219–1239
Colas G, Pilot G (1976) Description et classification des glissements de terrain. Bulletin de liaison des laboratoires des ponts et chaussées, Numéro spécial, 2, pp 21–30
Dass Amiour M, Mezghache H, Elouadi B (2013) The use of three physico-chemical methods in the study of the organic matter associated with the sedimentary phosphorites in Jebel Onk Basin, Algeria. Arab J Geosci 6(2)
Deere DU, Merritt AH, Coon RF (1969) Engineering classification of in situ rock: air force systems command, Kirtland Air Force Base, Report AFWL-64-144
Eberhardt E (2003) Rock slope stability analysis—utilization of advanced numerical techniques. Earth and Ocean Sciences, University of British Columbia, Vancouver
Franklin JA (1986) Size-strength system for rock characterization: proceedings of the symposium of rock characterization to mine design, American Society of Mining Engineers Annual Meeting, pp 11–16
Gunzburger Y, Merrien-Soukatchoff V, Guglielmi Y (2002) Mechanical influence of the last deglaciation on the initiation of the “La Clapière” slope instability (southern French Alps). 5th European Conference on Numerical Methods in Geotechnical Engineering (NUMGE) 2002, 4/6 September 2002, Paris, France
Hadji R, Boumazbeur A, Chouabi A (2013) Geologic, topographic and climatic controls in landslide hazard assessment using GIS modeling: a case study of Souk Ahras region, NE Algeria. Quat Int 302:224–237
Haines A, Terbrugge PJ (1991) Preliminary estimation of rock slope stability using rock mass classification systems. In: Wittke W (ed) Proc. 7th Congr. on Rock Mechanics 2, ISRM, Aachen, Germany. Balkema, Rotterdam, pp 887–892
Hoek E (1990) Practical rock engineering 3−slope stability and rockfalls, Chap. 9
Hoek E, Brown ET (1980) Empirical strength criterion for rock masses. J Geotech Eng Div ASCE 106(GT9):1013–1035
Jhanwar JC (2011) Slope failures in the opencast coal mines of Wardha valley coalfield in central India: a study. Rock Mech Rock Eng 44(5):635–639, ISSN 0723-2632
Jhanwar JC (2012) A classification system for the slope stability assessment of opencast coal mines in central India. Rock Mech Rock Eng 45(4):631–637, ISSN 0723-2632
Jhanwar JC (2013) Slope stability issues in the opencast limestone and iron ore mines in India—case studies. Indian Min Eng J 52(7):8–12, ISSN 0019-5944
John LP, Srikrishnan S, Verma CP, Jhanwar JC, Pal Roy P (2014) Slope stability assessment approach for multiple seams Highwall Mining extraction. Int J Rock Mech Min Sci 70:444–449, ISSN 1365-1609
Keykha HA, Yusof ZBM, Mohammad Ali TA (2011) Kinematic analysis of blocks in tunnel on the basis of discontinuities. Electron J Geotech Eng 16D:513–520
Kıncal C, Koca MY (2009) A proposed method for drawing the great circle representing dip angle and strike changes. Environ Eng Geosci 15(3):145–65
Kliche CA (1999) Rock slope stability. Society for Mining, Metallurgy and Exploration Inc., United States of America
Koca MY, Kıncal C (2004) Abandoned stone quarries in and around the Izmir City center and their geo-environmental impacts—Turkey. Eng Geol 75(1):49–67
Krautblatter M, Moser M, Schrott L, Wolf J, Morche D (2012) Significance of rockfall magnitude and carbonate dissolution of rock slope erosion and geomorphologic work on Alpine limestone cliffs (Reintal, German Alp). Geomorphology 167–168:21–34
Martin P (2006) Ces risques que l’on dit naturels. Editions Eyrolles, Paris, 506 p
Merrien-Soukatchoff V, Quenot X, Guglielmi Y (2001) Apports de méthodes géomécaniques quantitatives à l’investigation de grands versants instables: application au glissement de la Clapière (Saint-Etienne, Alpes Maritimes). XVème Congrès Français de Mécanique, Nancy
Mokadem N, Hamed Y, Ben Saad A, Gargouri I (2014) Atmospheric pollution in North Africa (ecosystems-atmosphere interactions): a case study in the mining basin of El Guettar-M’Dilla (southwestern Tunisia). Arab J Geosci 7(5):2071–2079
Pantelidis L (2009) Rock slope stability assessment through rock mass classification systems. Int J Rock Mech Min Sci 46(2):315–325
Paul A, Singh AP, John-Loui P, Singh A (2012) Validation of RMR-based support design using roof bolts by numerical modeling for underground coal mine of Monnet Ispat, Raigarh, India—a case study. Arab J Geosci 5(6):1435–1448
Romana M (1985) New adjustment rating for application of the Bieniawski classification to slopes. Proc. Int. Symp. on Rock Mechanics, Mining Civ Works, ISRM, Zacatecas, Mexico, pp 59–63
Romana M (1988) Practice of SMR classification for slope appraisal. Cinquième Symposium international sur les glissements de terrain, Lausanne
Romana M (1991) SMR classification. In: Wittke W (ed) Proc. 7th Congr. on Rock Mechanics, vol 2. ISRM, Aachen
Sarkar K, Singh TN, Verma AK (2012) A numerical simulation of landslide-prone slope in Himalayan region. Arab J Geosci 5:73–81
Serafim JL, Pereira JP (1983) Consideration of the geomechanics classification of Bieniawski. Proc. Int. Symp; on Engineering Geology and Underground Constructions, pp 1133–1144
Trunk U, Hönisch K (1989) Cited at rock mechanics design in mining and tunneling, Bieniawski, p 183
Wang G, Wu F, Ye W (2013) Stability analysis for toppling failure of unstable rock in three gorges reservoir area, China. Rock Charact Model Eng Des Methods 431–435. doi:10.1201/b14917-77
Yoon WS, Jeong UJ, Kim JH (2002) Kinematic analyses for sliding failure of multi-faced rocks lopes. Eng Geol 67(1–2):51–61
Acknowledgments
The author would like to thank the staff of the mine laboratory of Tebessa University (Algeria). Also, a special thanks to Professor A. Boumazbeur (Tebessa University - Algeria) for her objective comments and corrections and to Khaled Raїs for the not simple translation in English language of the text.
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Gadri, L., Hadji, R., Zahri, F. et al. The quarries edges stability in opencast mines: a case study of the Jebel Onk phosphate mine, NE Algeria. Arab J Geosci 8, 8987–8997 (2015). https://doi.org/10.1007/s12517-015-1887-3
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DOI: https://doi.org/10.1007/s12517-015-1887-3