Risk Assessment of the Rupture of São Pedro Dam, Juiz de Fora - MG, through the Fault Three and Cause and Consequence Methods

Abstract

Attention to risk study and analysis grows as the number of undesirable events increases, causing social and environmental damage. In Brazil, the last years have been marked by the occurrence of tailings dams rupture. Considering the large number of water dams - used for various uses, such as population supply, irrigation, hydroelectricity and others - it is important to study and analyze the risks surrounding these dikes and their dams. In this sense, the present work has as objective to make a risk analysis to the rupture of the dam of São Pedro reservoir, in Juiz de Fora, Minas Gerais. Methodologically, the work was did based on the Failt Tree (FTA) and Cause and Consequence (CCA) methods. At the end of the analyzes, although care was taken to control the flow of the dam, factors were observed that increased the risk of serious consequences from possible dam disruption, such as the absence of an emergency plan, alarms and escape routes.