Publicar

26 - AVALIAÇÃO TÉCNICA DE UM CAMINHÃO SOBRE ESTEIRAS NA DESCARACTERIZAÇÃO DE BARRAGENS COM REJEITO SATURADO

Doi: 10.47094/COBRAMSEG2026.1/26

PALAVRAS CHAVE: Descaracterização de barragens; rejeito saturado; trafegabilidade.

KEYWORDS: Dam decharacterization; saturated tailings; mobility.

ABSTRACT:
The decommissioning of upstream-raised tailings dams presents significant operational challenges, particularly regarding equipment mobility over saturated tailings. This study presents the results of field tests conducted with a rubber-tracked truck at a mine site in Minas Gerais, Brazil. The equipment was evaluated under two scenarios: (i) manned operation over uncompacted tailings and (ii) manned and unmanned operation on a compacted test track. The tests assessed operational performance indicators, including mobility, productivity, physical availability, and maneuvering time. The tracked truck demonstrated the ability to operate on materials with a moisture content of up to 44% when supported by a compacted subgrade, significantly exceeding the operational limits of conventional trucks, which are reported to be up to 15%. Unmanned operation delivered better performance in terms of maneuverability and command responsiveness, although further improvements in safety and remote-control system integration are required. Despite its technical capabilities, the equipment’s low productivity and high cost per cubic meter of material removed limit its feasibility for large-scale operations. It is concluded that the tracked truck is technically suitable for specific applications, such as post-rain recovery operations, sump cleaning, and material transport in high-risk areas. However, its adoption as a primary solution for dam decommissioning requires domestic technical support, workforce training, and a comprehensive cost-benefit analysis.

Autores

  • Adriana Pereira

  • Kênia de Oliveira

  • Luana Araújo

Download