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Comparative Study of Slope Soils Analysis by Using Limit Equilibrium and Finite Element Methods

International Journal of Geosciences 2022年第12期13卷 1089-1102页

作者： kempena adolphe Watha Ndoudy Noël Obami Ondon Harmel Mbilou Urbain Gampio Antonio Olimpio Gonçalves Rafael Guardado Lacaba Boudzoumou Florent Department of Geology Faculty of Sciences and Techniques Marien Ngouabi University Brazzaville Republic of Congo Mechanical Energy and Engineering Laboratory Higher National Polytechnic School Marien Ngouabi University Brazzaville Republic of Congo Department of Geology Faculty of Sciences Agostinho Neto University Luanda Angola Department of Geology Faculty of Mines and Geology Higher Institute of Mines and Metallurgy Moa Cuba

The slope soil analysis remains a corporate concern in construction activities. Because of its significance, the evaluation of slope soil stability has called widespread attention to several researchers all over the world. Many methods have been technologically advanced to evaluate the stability of slopes soils founded on distinct expectations and circumstances. Every method has specific benefits and limits. This work makes a comparison among safety factors and slip surfaces of slopes soils based on using Limit Equilibrium and Finite Element methods. Therefore, SLIDE 6.0 and PLAXIS 8.0 software were used for Limit Equilibrium and Finite Element methods, respectively. The computations of safety factors were performed for diverse shapes of slopes including different types of soils. Failure surfaces and values of safety factors obtained were compared for both methods used. It was noticed that the safety factors obtained from Limit Equilibrium methods were larger than of which is obtained by the finite element code. Moreover, an important change is noticed between the slip surfaces obtained by using both approaches.

关键词： Slopes Soils Slip Surface Limit Equilibrium Finite Element Factor of Safety

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