Abstract
This work aims to study methodologies for calculating the allowable pile load based on the results of a static load test provided for in NBR 12131:2006. It is known that, in the design phase, the allowable pile load is found through the use of semi-empirical methods of load capacity forecasting. Field tests can be carried out to guarantee that the pile fulfills its function correctly and to prove the safety factor provided by ABNT (2019), such as the static loading test. This kind of test may lead to pile breaking, with its allowable load determined directly. Otherwise, the extrapolation methods in load-movement records of a static loading test are used to determine this value. With this assumption, this article presents a comparative analysis between allowable load admitted in a project for continuous flight auger pile and the loads found by the application of the Chin-Kondner Extrapolation proposed in 1970, the Brazilian method (NBR 6122:2019), the Van der Veen Method proposed in 1953, and the Décourt Extrapolation proposed in 1999 in the results of static loading test with a mixed load. After the analysis of the results, it was verified that the proximity between the allowable loads was determined through the Van der Veen and Conventional method in relation to that obtained by the Décourt-Quaresma load capacity method proposed in 1996.
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