ESTUDO COMPARATIVO ENTRE METODOLOGIAS DE CÁLCULO DE CAPACIDADE DE CARGA DE FUNDAÇÕES PROFUNDAS EM ESTACAS PRÉ-MOLDADAS DE CONCRETO

Abstract

The following work proposes a case study of a deep foundation with precast concrete pile. This project was obtained from the dissertation of Santos Jr., O. F (1988, apud Fernandes Alves, Rubens Diego, 2014), in which he studied 8 static load tests of the SML type and 8 SPT type probing tests , located as close as possible to the load tests analyzed. These data were made available by the Geotechnical Department of EESC-USP. In this project, several semiempirical methods of load capacity were exemplified: Meyerhof (1976), Aoki-Velloso (1975), Décourt Quaresma (1978), Teixeira (1996), Alonso (1996), Vorcaro and Velloso 1981), Antunes and Cabral (1996) and the theoretical method proposed by Terzaghi (1943). For a better study of technical feasibility, when defining the load of rupture of the case study, it may happen to extrapolate the curve-settling, through this, it was necessary to present the extrapolation method of the curve-setback obtained in load tests of Van der Veen (1953). It was then proposed to apply the eight semiempirical methods to the eight stakes presented, in order to make a comparison between them. The results of Santos (1988), which was performed by extrapolation, will also be presented. By comparing the results, one can better understand the methods, their characteristics and be able to understand the motive of those who have approached and those who have distanced themselves the most.