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40 - AVALIAÇÃO GEOTÉCNICA E SOLUÇÕES PARA TALUDES INSTÁVEIS NA BR- 393/RJ: INSPEÇÃO EXTRAORDINÁRIA EM ATUAÇÃO COM O PROARTE/DNIT

Doi: 10.47094/COBRAMSEG2026.4/40

PALAVRAS CHAVE: Estabilidade de Taludes; PROARTE; Inspeção Extraordinária; Contenções; Manutenção Rodoviária.

KEYWORDS: Slope Stability; PROARTE; Extraordinary Inspection; Retaining Structures; Road Maintenance.

ABSTRACT:
This paper presents a case study on the extraordinary inspection carried out on the stretch between km 105+300 and km 288.60 of the BR-393/RJ highway, within the scope of actions by the Coordination of Maintenance of Structures and Retaining Works (COMEC/DNIT). Seven sites with geotechnical instabilities previously identified in a technical report by the contracted supervisor were evaluated, encompassing pathological manifestations such as progressive erosion, tensile cracks, differential settlements, active instability of embankments, deficient surface and deep drainage, and risk of rockfalls. Based on field surveys, geotechnical analysis of failure mechanisms, and the PROARTE guidelines, preliminary and definitive solutions were proposed, including the improvement and implementation of drainage systems, soil nailing, tied-back retaining walls, high-strength steel meshes, and gabion retaining structures. This study contributes to the technical systematization of extraordinary inspections on federal highways and to the improvement of geotechnical risk management in road infrastructure.

Autores

  • Alexandre Gil Batista Medeiros

  • Alexandre Menezes Resque de Oliveira

  • Francesca Emmanuelle Leite Viana Abreu

  • José Bruno Primo do Nascimento

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