Verificação do dimensionamento geotécnico das fundações de uma obra em Campo Mourão, PR

Abstract

In Civil Engineering, particularly within the geotechnical field, reports of negligence regarding the geotechnical investigation stage in foundation projects are unfortunately common. Conversely, the recognition and characterization of the subsoil layers are fundamental for foundation design, as these layers are responsible for dissipating stresses originating from the superstructure. In this context, this study aimed to verify the geotechnical design carried out for the foundations of a two-story residential building in the municipality of Campo Mourão, PR, considering that such design was based on borehole logs obtained from a different construction site within the same municipality. To achieve this, analyses of the provided Standard Penetration Test (SPT) logs were performed to determine the representative average soil profile of the site. Subsequently, the geotechnical design of the foundations was conducted based on the Allowable Stress Design (ASD) philosophy. Information regarding the type of foundation implemented and the structural load plan of the building were also provided. Analyses of bearing capacity, allowable load, and immediate settlement were addressed in this work. Generally, the results revealed a series of non-conformities between the geotechnical design performed in this study and the executive project of the building's foundations. Consequently, it is concluded that the observed discrepancies may be associated with the use of different design methodologies by the firm responsible for the project, or the fact that the foundation project was developed without proper site-specific geotechnical investigation.