Aplicabilidade do DMT na estimativa de parâmetros geotécnicos de maciços compactados

Abstract

Soil compaction is a process that starts with a simulation in laboratory so that it is properly planned in order to obtain the better results in the field. This technique allows for soil densification and reduction of its permeability. In the process, it is common to use deposits of other regions, causing different behavior in the compacted layers. Due to this difference in behavior, it is necessary to improve the technological control of field compaction, which is usually done considering only the variables Δh and GC (deviation of optimal moisture and degree of compaction, respectively. As a solution for more accurate results on the behavior of the massif, this research brought the Marchetti Dilatometer essay, known as DMT. The results obtained with the DMT are correlated with other geotechnical parameters obtained in the laboratory to have a most faithful representation of the compacted landfill. However, only the use of DMT still not ideal for the ultimate form of technological control of compacted soil, since the correlations are empirical, which signals the need to use complementary geotechnical investigation tools for an optimal final analysis, since certain parameters obtained by the correlations are not per se conclusive due to the variances presented due to equipment limitations