Utilização do capim Vetiver na estabilização de taludes situados em áreas de risco geológico no município de Juiz de Fora - MG

Abstract

Landslides also occur due to the continuous and disorderly expansion of cities, leading to construction in places where the topography is rugged, which, in itself, present great risks of landslides, which can cause enormous losses, devastation of public and private assets, road closures and even deaths. Such landslides occur due to the low resistance of the materials that make up the slope, allowing slippage due to gravitational force, or even due to the increase in acting efforts that exceed the shear resistance limit. In this situation, it is possible to identify the need to use safety mechanisms that can reduce and/or eliminate such risks, offering a stable arrangement and considerably increasing the resistance forces of the earth mass. Therefore, the scope of this work is to evaluate the soil resistance parameters after six and twelve months of planting Vetiver grass on a slope located in an area of very high geological risk (R4) in the municipality of Juiz de Fora/MG. To this end, a qualitative-quantitative approach was used, through bibliographic and experimental research. The results showed that samples containing roots presented higher values for the internal friction angle compared to soil without roots, especially after twelve months of planting. It was observed that Vetiver grass can substantially improve the soil's ability to resist shear, showing how promising the use of the species can be as a slope stabilization technique, in order to prevent the occurrence of these adverse events.