Ensaio de cone de penetração dinâmica para controle de compactação de vias urbanas da cidade de Curitiba/PR

Abstract

This study aims to evaluate the dynamic cone penetration (DCP) as methodology for geotechnical control on urban roads of light traffic. Currently, among the various tests available to evaluate the mechanical behavior of the soil, there is the use of CBR, however, this has disadvantages as the long time for obtaining the results, due to the intrinsic test procedure. From this perspective, the present study aims to analyze the use of DCP equipment - Dynamic Cone Penetration - as a more economical alternative, feasible and safe for the analysis of the compression levels of the component layers of the urban roads. The study area is located in the city of Curitiba, State of Parana, Brazil. The study is conducted through field and laboratory tests of the local soil to obtain mathematical correlations to ensure correspondence between the cone penetration and the CBR in situ. In addition, the evaluation of the performance of the equipment with the moisture content variation and degree of compaction was carried out. In addition, correlations were made between the CBR and the Proctor penetrometer and also comparisons between the soils of the subgrade (without cement) and base course of the roads (with cement) at different ages, also with the use of DCP. The results were positive regarding the feasibility of using the equipment to estimate compaction control, soil load bearing capacity and also for ease of handling both in the laboratory and in the field.