Planejamento das operações de dragagem no Rio Paraopeba: um estudo de caso pós-desastre Brumadinho

Abstract

This thesis examines the planning and execution of dredging operations in the Paraopeba River, focusing on environmental remediation following the Brumadinho disaster. This work explores the planning stages, operational challenges faced, and discrepancies between expected and achieved outcomes. It was identified that the productivity of dredging was negatively impacted by the presence of large rocks not detected in the initial tests, frequent ruptures in the pipeline, and issues with oil containment barriers. The study highlights the importance of more representative tests of the material to be dredged, more rigorous pipeline maintenance planning, and the need for adaptive solutions for contaminant containment. Recommendations include the use of advanced monitoring technologies, a conservative approach to pipeline maintenance, and the implementation of more robust containment barriers, aiming to improve the efficiency, safety, and sustainability of future dredging operations.