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Finite Element Methods for 3D Slope Stability Analysis
In this paper, a new approach for modeling of three dimensional slope stability problems is presented. To this end, p-version of the finite element method together with large deformation hyperelastic-plastic formulation is utilized to model localized, continuous deformation that has been observed in failure mechanisms of slopes. In particular, it is shown how the new method can be used with a rather small number of finite elements to model sharp deformation gradients resulting from shear localization during slope failures. Method is well suited for both 2D and 3D computations. In 3D, we show clear advantages of our formulation over classical approach which rely on large number of elements or special elements with enhanced shape functions. In addition to that, solution advancement strategies that allow for accurate following of the equilibrium path in hardening, softening and snap-back regimes are presented. Proposed method is used to simulate behavior of three dimensional slopes. Reduction of safety factors (obtained for plain strain conditions) is observed as the out the of plane curvature of the slope is increased.
Finite Element Methods for 3D Slope Stability Analysis
In this paper, a new approach for modeling of three dimensional slope stability problems is presented. To this end, p-version of the finite element method together with large deformation hyperelastic-plastic formulation is utilized to model localized, continuous deformation that has been observed in failure mechanisms of slopes. In particular, it is shown how the new method can be used with a rather small number of finite elements to model sharp deformation gradients resulting from shear localization during slope failures. Method is well suited for both 2D and 3D computations. In 3D, we show clear advantages of our formulation over classical approach which rely on large number of elements or special elements with enhanced shape functions. In addition to that, solution advancement strategies that allow for accurate following of the equilibrium path in hardening, softening and snap-back regimes are presented. Proposed method is used to simulate behavior of three dimensional slopes. Reduction of safety factors (obtained for plain strain conditions) is observed as the out the of plane curvature of the slope is increased.
Finite Element Methods for 3D Slope Stability Analysis
Jeremić, Boris (Autor:in)
Geo-Denver 2000 ; 2000 ; Denver, Colorado, United States
Slope Stability 2000 ; 224-238
24.07.2000
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
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