Influência de face do talude na estabilidade de obras geotécnicas em solo grampeado

Abstract

With the advancement of knowledge in the area of geotechnics, the techniques that allow the improvement and reinforcement of the soil have been increasingly used in slope stabilization works. The use of computational systems in projects of soil nailing has been preparing more and more present in the geotechnics. This work was presented and discussed as a result of a series of parameters in a slope profile with soil nailing. The analysis was based on the PLAXIS computational program, based on the finite element method, with the objective of evaluating the influence of a structure in soil nailing on slope stability. The comparation of this model was performed through the software PLAXIS, GeoSlope and Mitchell and Villet (1987) method for validation of software, with the objective of obtaining greater reliability in the results. The post-calibration analyzes were based on the variation of some parameters (nail inclination, vertical nail spacing and face layer thickness) that may influence the magnitude of the maximum horizontal displacements of the structure and its safety factor. The analysis of the results allowed to confirm that the PLAXIS is a software capable of reproducing the behavior of structures in soil nailing. In addition, the analyzes also showed that the face of the slope has no structural function and that its coating proves important to combat local instabilities and erosive processes.