Publicar

09 - ESTUDO DOS FATORES CONDICIONANTES DE QUEDAS E ROLAMENTOS DE BLOCOS DE ROCHA EM MATRIZ DE MATERIAL INCONSOLIDADO

Doi: 10.47094/COBRAMSEG2026.6/9

PALAVRAS CHAVE: Quedas de Blocos, Movimentos de Massa, Suscetibilidade, Taludes de Solo, Blocos em Solos.

KEYWORDS: Rockfall, Mass Moviment, Susceptibility, Soil Slopes, Blocks in Soils.

ABSTRACT:
This study investigates the conditioning factors controlling the rockfall embedded within a soil matrix through statistical analyses and field observations. An existing database comprising 57 slopes was analyzed, from which the most relevant variables describing rockfall susceptibility were selected. Each variable received a score from 1 to 4, where 1 indicates conditions favorable to stability and 4 represents adverse conditions. K-means cluster analysis was applied, and the results show that clustering was primarily governed by the cumulative sum of variable scores, enabling an initial classification of susceptibility levels. The most influential parameters were slope height, as well as block size and shape. Field investigations conducted on a slope in Contagem, Minas Gerais, Brazil, indicate that steep slope geometry increases the predisposition to rockfall. Additionally, the presence of large, dense, and subangular blocks enhances the destructive potential, corroborating the statistical findings.

Autores

  • Giovana Pires Cardoso Gonçalves

  • Larissa Regina Costa Silveira

  • Maria Giovana Parisi

  • Maria Luiza Ferreira Soares

Download