Modelagem computacional de aterro sobre solo mole reforçado com geossintéticos

Abstract

The execution of embankments on soft soils can be considered a challenge for geotechnical engineering, due to the risks of high settlements and ruptures that can occur, since construction, provided by the low support capacity over the long period of consolidation associated with this type of soil. As a result, solutions that provide an increase in the stability and load capacity of these works are essential for their safety. The use of geosynthetic material as reinforcement has become an economically viable way in works of this type, due to its high shear resistance. This work presents a study of the behavior of an embankment on soft soil reinforced with geogrid at the embankment-soft soil interface, carried out from a computational modeling via the finite element method. Analyzes of the vertical displacements and the safety factor were carried out for 3 different scenarios, using geogrids with different resistances. The results showed that for some cases the use of reinforcement provided a reduction in displacements and also an increase in the landfill safety factor.