ANÁLISE GEOLÓGICO-GEOTÉCNICA DA CIDADE DE RIO VERDE – GO E DESENVOLVIMENTO DE CARTAS DE APTIDÃO PARA FUNDAÇÕES COM BASE EM SONDAGENS SPT UTILIZANDO QGIS

Abstract

This study aimed to structure a geological-geotechnical database for the urban area of Rio Verde, Goiás, based on Standard Penetration Tests (SPT), totaling 231 percussion drilling reports. The methodology included data collection from the drilling reports, georeferencing in the QGIS software, and applying interpolation methods such as Inverse Distance Weighting (IDW) to generate geotechnical maps and foundation suitability charts. Maps of Nspt isovalues, soil types at different depths, and maximum pile lengths were developed, considering different foundation types. The main results showed that the region's soil is predominantly clay in the upper meters, followed by silt and sand at greater depths, until impenetrable layers are reached. The suitability charts highlight specific areas for the application of continuous flight auger piles, precast piles, and root piles, supporting the planning of civil construction projects. It is concluded that the use of GIS tools, such as QGIS, and geostatistical techniques are of great value for geotechnical modeling of the region, providing a technical basis for strategic decisions in engineering projects, although further studies and on-site drilling are recommended for each specific project.