Avaliação de Capacidade de Carga de Estacas Hollow Auger por meio de Ensaios de Carregamento Dinâmico, em Pelotas/RS

: In this paper, it was studied the behavior of 310 mm diameter Hollow Auger Piles, with a drilled length of 28 m, 22 m and 15 m, in Pelotas, RS, Brazil, through the analyses of the results of five Dynamic Load Testings. This paper’s goal, therefore, is to analyze the CAPWAP results and compare to semi-empirical methods: Lizzi (1982), Décourt & Quaresma (1996), Aoki & Velloso (1975) and Teixeira (1996). With that in mind, the calculations were made using the pre-determined coefficients from each method for Root Piles, Continuous Flight Auger Piles and Bored Piles, which had executive similarities with the studied pile. Adopting the ultimate loads obtained in the dynamic load tests as reference, it was found that these values were close to some of the values provided by the formulas. However, it was considered that these methods were developed based on static load tests, which do not always present the same values as the dynamic load tests. On average, it was observed that the calculations as Root Piles and Continuous Flight Auger Piles presented results, respectively, 80% and 20% higher. As for Bored Piles, the results were close to what was expected. Load Semi-empirical methods, Load Capacity.