Estudo de infraestrutura urbana com a utilização do método radar de penetração no solo (GPR) na área urbana de Caçapava do Sul

Abstract

In the present work, a study of urban infrastructure was carried out, in which the Ground Penetration Radar (GPR) method was used in order to delimit underground interferences, such as water pipes, sewage pipes and electrical cables, which are materials used to supplying companies and homes to residents of Benjamin Constant Street, located in the urban center of the municipality of Caçapava do Sul - RS. The methodology used consists of collecting data from GPR profiles along Benjamin Constant Street, starting at XV de Novembro Street and ending at Bento Gonçalves Street. For the acquisition of GPR data, the common offset arrangement was used through shielded monostatic antennas with central frequency of 80 MHz and 200 MHz, developed by the Italian company Ingegneria Dei Sistemi (IDS) and made available by the Federal University of Pampa (Unipampa). The data were processed in the ReflexW software from the German company Sandmeier Geophysical Research, using processing steps such as: data editing, temporal filtering, spatial filtering, time zero correction, application of gains and time cut. With the analysis of the results, 6 reflection patterns were verified, highlighting the hyperbolic reflection patterns (PR1), related to underground interferences, if they had any continuity between the profiles, where 10 continuities correlated with pipes crossing the Benjamin Constant Street can be seen. The possible interferences buried underground were delimited in order to enable the creation of a guiding technical document, which will allow the municipality's infrastructure managers to have access to buried structures in an agile way, thus reducing the risks of accidents and the time of each ground intervention.