Avaliação da capacidade de carga e recalque de estacas via métodos teóricos e provas de carga

Abstract

For choosing the best type of foundation, it is necessary to have data, both the building (type, size, location, column loads values, etc.) and the ground (surveys). Once the recognition of the ground is done by means of Standard Penetration Test (SPT), there must be done an analysis of the maximum capacity supported by cutting-soil system. This analysis can be determined either by loading tests performed in situ assays as by methods of theoretical calculations which allow to determine aspects related to the resistance of soil layers, the load capacity, and the discharge. This paper presents and analyzes the behavior of two different types of stakes, which are the Franki stake and pre molded the metal type stake. They are submitted to load test of the static vertical compression type. This analysis is done by associating the theory, using methods of semi-empirical calculations made by authors established in the literature foundations, and with practice based on the results obtained in the field. The calculated results were compared with the results obtained in the load tests in order to verify the variation between the estimate and real values.