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79 - MÉTODOS DE CAPACIDADE DE CARGA GEOTÉCNICA À COMPRESSÃO DE ESTACAS EM AMBIENTE OFFSHORE BASEADOS NO ENSAIO DE CONE (CPT)

Doi: 10.47094/COBRAMSEG2026.5/79

PALAVRAS CHAVE: Capacidade de Carga à Compressão, Estacas, CPT, Offshore, Métodos semiempíricos.

KEYWORDS: Compressive bearing capacity, Piles, CPT, Offshore, Semi-empirical methods

ABSTRACT:
Geotechnical compressive bearing capacity of piles is a highly valued topic in foundation engineering. Among the most widely used approaches are semi-empirical methods based on correlations with in situ tests. In this context, particularly under offshore conditions, the cone penetration test (CPT), due to its high repeatability and reduced operator dependency, offers advantages over the standard penetration test (SPT). This paper presents a comparative assessment of three semi-empirical methods for estimating the compressive bearing capacity of piles: Aoki-Velloso (1975), UWA (2005), and NGI (2005). The analysis is based on a case study involving a square precast pile installed in an offshore environment within a silty fine sand deposit, for which static pile load test results are available. The results indicate that the Aoki-Velloso (1975) method significantly underestimates the total bearing capacity, whereas the UWA (2005) and NGI (2005) methods show better agreement with the reference value.

Autores

  • Fernando Artur Brasil Danziger

  • Filipe José de Oliveira

  • Gustavo Vaz de Mello Guimarães

  • Lucas Marques Pires da Silva

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