This paper presents the case study B114 Trieben-Sunk and is dealing with conventional, analytical calculation methods and numerical simulations of geosynthetic reinforced embankments. Two and threedimensional analysis are performed. For conventional calculations GGU Software is used and for numerical simulations Plaxis V.8 and Plaxis 3D Tunnel is employed. The goal is to simulate respectively to evaluate the behavior of geosynthetic reinforced embankments. The differences between conventional and numerical calculations are shown and the results are compared. An important aspect is the determination of the global safety factor and the failure mechanism. With Plaxis the deformations of the embankment and the resulting forces in geosynthetics and anchors are calculated. Variation of the ground stiffness and the road roller compaction force shows the influence on the forces in geosynthetics. The settlements of the embankment are calculated and a comparison with measurements at the project Trieben–Sunk is provided. Finally advantages and disadvantages of each, conventional and numerical method of calculation, are shown. Further the actual performance of the road under traffic is presented.
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