Análise comparativa de dimensionamento de pavimentos por meio dos métodos mecanístico-empírico e empírico: estudo de caso do trecho porto Santo Antônio das Lendas – MT

Abstract

The quality of highways is considered important for the country's economy and the safety of its citizens. Thus, analyzing the different methodologies for pavement design can help ensure its quality. Therefore, the objective of this work is to analyze the mechanical behavior of materials and the thickness of layers of the road pavement, using both the empirical method (CBR) and the mechanistic-empirical method (MeDiNa), in the Porto Santo Antônio das Lendas section, located in the state of Mato Grosso (MT). Consequently, the physical and mechanical behavior of the materials composing the pavement layers was evaluated, as well as their thicknesses determined in each applied method. Additionally, the pavement structures were evaluated according to each designed criterion. It was found that to satisfy the minimum criteria of MeDiNa, twice the thickness of the pavement used in CBR would be necessary. None of the designs made by CBR met the MeDiNa stopping criterion, demonstrating that pavements designed by the mechanistic-empirical method are more likely to meet the project's service life.