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116 - SOLUÇÃO DE ATERRO CONFINADO DE SOLO REFORÇADO COM GEOGRELHAS E BLOCOS SEGMENTAIS DE CONCRETO PARA APOIO DE ESCADA DE ACESSO

Doi: 10.47094/COBRAMSEG2026.4/116

PALAVRAS CHAVE: Solo Reforçado; MurrosTerrae®; Geogrelhas; Estabilidade de Taludes; Contenção; Bloco segmental.

KEYWORDS: Reinforced Soil; TerraeWall®; Geogrids; Slope Stability; Retaining Wall; Segmental block.

ABSTRACT:
The article describes the development of an engineering solution using soil reinforced with unidirectional geogrids and segmental concrete block facing (TerraeWall®) to serve as the foundation for an urban access stairway. This confined backfill technique was adopted to replace conventional systems, eliminating the need for deep foundations and reducing excavation volume and lateral land occupation. The structural design followed NBR 16920-1:2021 and NBR 11682:2009 standards, encompassing internal stability verifications (reinforcement rupture and local stability) and external stability (foundation bearing capacity and global stability). Analyses were performed via numerical modeling and calculation spreadsheets, and this work presents the results for the most critical section. The results for this section demonstrated factors of safety exceeding the minimums required by the standards. The solution proved to be efficient, offering advantages in terms of modularity, cost, and speed of execution in areas with spatial constraints.

Autores

  • Isabela Grossi da Silva

  • Joaquim Monteiro Garcez Duarte

  • Luis Brian Apaza Fuente

  • Marcelo Francisco Jordão Aviles

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