ANÁLISE COMPARATIVA ENTRE FUNDAÇÕES PROFUNDAS: estacas escavadas e estacas metálicas de trilho - estudo de caso de edifício residencial e comercial

Abstract

Deep foundations are those where the load is transmitted to the ground through its base (tip resistance) and / or side surface (frictional resistance). The stakes are slender structural elements which, placed on the ground by nailing or drilling, have the transmitting loads to the ground, either by tip resistance or lateral friction or the combination of both. The permissible pile load shall be verified by the methods of calculation of load capacity, which consider soil-pile interaction. In this study, we approached the comparative cost between deep pile foundation and spiked pile rails. Spiked piles are made by mechanical excavation, whether or not using bentonite and full or partial coating sludge and subsequent concreting. May have circular or any other shape. Rail metal piles are as efficient as rail piles. Beams / Profiles, the main advantage is the fact that it lends itself to crimping in almost all terrain types allowing easy crimping and large amount of load. Nowadays no longer there are concerns about the corrosion problem as the rails remain entirely buried in natural soil, in this case the amount of existing oxygen is so small that oxidation stops within a short time. In the project used for the study, the excavated piles were already sized. To do the comparison between the types of piles was made, according to the survey actual, the sizing of the sheet metal in rails. By sizing the load capacity, a commercial diameter was adopted and, with the result obtained, it was adopted the number of piles per pillar.