Geosynthetic-reinforced pile-supported embankments are widely used as a geotechnical solution for constructions over soils with high compressibility and low bearing capacity, such as soft soils. In this type of structure, soil arching and the membrane effect control stabilization. These effects are responsible for transferring most of the embankment loads and surcharges to the piles. Using the finite element code Plaxis 2D 2016, parametric analyses were performed aiming to evaluate the effect of induced stress due to soil compaction (CIS), geosynthetic stiffness, embankment height and spacing between caps on the behavior of these structures. In the numerical analyses, the pile-supported embankment was modelled with a trapdoor under plane strain condition, which was proposed by Terzaghi (1936). In this work, the effect of the factors mentioned previously on the differential settlement at the top of the embankment, the geosynthetic deflection and the mobilization of tensile load along the reinforcement were analyzed. Results show that the reinforcement stiffness, height of the embankment and spacing between caps are the most important factors in the structural behavior. Moreover, for structures with lower ratio between the height of the embankments and spacing between caps, the CIS may reduce the differential settlement at top of the embankment.
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