Stability analysis of a slope subject to real accelerograms by finite elements. Application to San Pedro cliff at the Alhambra in Granada |
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| Institution: | 1. Department of Building Structures and Geotechnical Engineering, University of Seville, Spain;2. TGT-NT2 Labs, Chile;3. Department of Geodynamics, University of Granada, Spain;4. Department of Computer Science. Pablo de Olavide University of Seville, Spain;1. School of Electrical, Electronic and Computer Engineering, North-West University, Private Bag X6001, Potchefstroom 2531, South Africa;2. Unit for Energy and Technology Systems, North-West University, Private Bag X6001, Potchefstroom 2531, South Africa |
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| Abstract: | The dynamic stability analysis of slopes is often conducted by the traditional method of slices, using pseudo-static calculations. However, the response of a geotechnical structure subjected to seismic loads can be studied through a dynamic finite element analysis, which can be considered one of the most complete available tools, as information about the stress distribution and the deformations can be obtained. The dynamic analysis of the stability of San Pedro cliff at the Alhambra in Granada is studied in this paper. The results have been compared with pseudo-static calculations worked out with the method of slices. Real accelerograms have been selected for the dynamic tests. Thorough in situ and laboratory tests have been conducted in order to properly characterize the cliff. The soil constitutive model is also explained in this paper. Finally, the influence of the sources of energy dissipation has been studied through the material damping, the integration scheme and the boundary conditions. |
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| Keywords: | Dynamic calculation Stability of slopes Finite element Accelerogram |
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