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Estatística
Título: UNIT SKIN FRICTION OF PILES IN LATERITIC SOILS: ANALYSIS OF A DATABASE
Autor: ALAN HENRIQUE CARNEIRO BRITO
Colaborador(es): ALESSANDRO CIRONE - Orientador
Catalogação: 14/ABR/2025 Língua(s): PORTUGUESE - BRAZIL
Tipo: TEXT Subtipo: THESIS
Notas: [pt] Todos os dados constantes dos documentos são de inteira responsabilidade de seus autores. Os dados utilizados nas descrições dos documentos estão em conformidade com os sistemas da administração da PUC-Rio.
[en] All data contained in the documents are the sole responsibility of the authors. The data used in the descriptions of the documents are in conformity with the systems of the administration of PUC-Rio.
Referência(s): [pt] https://www.maxwell.vrac.puc-rio.br/projetosEspeciais/ETDs/consultas/conteudo.php?strSecao=resultado&nrSeq=70021&idi=1
[en] https://www.maxwell.vrac.puc-rio.br/projetosEspeciais/ETDs/consultas/conteudo.php?strSecao=resultado&nrSeq=70021&idi=2
DOI: https://doi.org/10.17771/PUCRio.acad.70021
Resumo:
Lateritic soils are predominant in tropical regions and widely distributed throughout the Brazilian territory. Their composition is characterized by a considerable presence of iron and aluminum oxides, which form cementitious bonds with soil particles. Recognizing the presence of these soils plays a fundamental role in foundation engineering, as omitting this characteristic when estimating load capacity can result in excessive costs in projects. Although the report from the Standard Penetration Test (SPT) plays a crucial role in foundation design, its accuracy in assessing the stiffness properties of lateritic soils may be limited. This research addresses this gap by collecting and analyzing data from various types of piles subjected to load tests in lateritic soils. The investigations cover experimental fields located in Campinas/SP and Londrina/PR, as well as cases in four satellite cities of the Federal District and an isolated case in Itaquera/SP. When comparing the estimated load capacity of the shaft with the measurements obtained from load tests, the results indicate that the shaft resistance of the piles in lateritic soils is approximately twice the values estimated by conventional Brazilian formulas. These results highlight the importance of determining the maximum shear modulus (G0) in profiles containing this type of soil, providing an understanding of soil stiffness and allowing for a more accurate and effective design of geotechnical projects.
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