Análise e dimensionamento geotécnico de uma estaca raiz em rocha na região oeste do Paraná

Abstract

This study aims to analyze the load-bearing capacity of partially embedded root piles in rock, comparing normative calculation methods with results obtained from an actual sondage. Foundations, essential structural elements, transfer the loads of buildings to the soil or rock, and their proper design is crucial, especially in large-scale projects that require greater load-bearing capacity due to the vertical nature of the structures. The analysis uses data from a rotary sondage provided by Fundati Engenharia Geotécnica, referring to a root pile with 8 meters in soil, 1 meter in altered rock, and 5 meters in basaltic rock. The evaluation was conducted using the Rowe and Armitage and Cabral-Antunes methods, considering different degrees of rock alteration and compressive strength. The results from these methods were similar, highlighting lateral resistance as the main factor for load support. The study concludes that the determination of the embedment length should consider the specific geotechnical characteristics of the site, and that load testing is essential for confirming the pile's real load-bearing capacity.