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24 - ATRITO NEGATIVO NA ENGENHARIA DE FUNDAÇÕES: UM PANORAMA TEÓRICO E EXPERIMENTAL DA LITERATURA

Doi: 10.47094/COBRAMSEG2026.5/24

PALAVRAS CHAVE: Interação solo-estrutura, Adensamento, Solos moles, Atrito lateral, Plano neutro.

KEYWORDS: Soil-structure interaction, Consolidation, Soft soils, Skin friction, Neutral plane.

ABSTRACT:
Negative skin friction in piles corresponds to the mobilization of downward shear stresses along the pile shaft, resulting from the vertical displacement of the soil relative to the pile. This phenomenon may compromise the load-bearing capacity and induce excessive settlements, being frequently associated with soft soils subjected to consolidation processes, the application of surface loads, or variations in the groundwater level. Considering the technical relevance of this phenomenon and the evolution of the understanding of the subject since the 1960s, this study presents a systematic literature review on negative skin friction in piles. The Methodi Ordinatio method was employed for the selection of publications, based on criteria related to year of publication, number of citations, and journal impact factor. Both national and international studies were analyzed. The reviewed literature addresses conceptual aspects of the phenomenon, its causes and implications, calculation methods, and mitigation strategies, as well as discussions on the group effect and on the consideration of negative skin friction in the geotechnical context.

Autores

  • Ana Beatriz de Castro Fernandes

  • Graziela Santolia da Silva

  • Jherry Lobaton Phocco Minaya

  • José Guilherme Sacilotto

  • Paulo José Rocha de Albuquerque

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