Avaliação da segurança da barragem Labourrie/AP à luz de diferentes metodologias

In recent years, dams in Brazil have been constantly related to the occurrence of numerous engineering problems, whether in design, construction methods, control, monitoring, instrumentation, etc., these situations were created as a result of some accidents that occurred, such as Mariana's cases and Brumadinho / MG. The inadequate design and construction of these structures represents a great risk to society, the environment and the economy. Thus, in this work, we chose, as a case study, to analyze the safety of the Laborrie tailings dam, located in the Lourenço district, in the state of Amapá, based on risk analysis and associated potential damage. The methodologies used were: SABESP, COGERH (modified), USACE, CNRH Res. 143/2012 and ANM Ordinance 70.389 / 2017. The study identified the similarity in the methods, oscillating in the weights used for calculations, as well as identified the method that does not use any relevant item in the analysis of tailings dams. Therefore, it is concluded that for the Laborrie Dam case study, the use for risk assessment of tailings dams using the ANM methodology and resolution 143, are the most indicated, which does not invalidate the use of the other methodologies, however, each particularity of the proposed method must be analyzed, in order to fill in the information that really has relevance and direct impact in the search for a closer approximation of the result. ; Nos últimos anos, as Barragens no Brasil tem sido constantemente relacionadas a ocorrências de inúmeros problemas de engenharia, seja na concepção, métodos contrutivos, controle, monitoramento, instrumentação etc., essas situações foram criadas em decorrência de alguns acidentes ocorridos como os casos de Mariana e Brumadinho/MG. A concepção e construção de forma inadequada dessas estruturas representam um grande risco para sociedade, meio ambiente e economia. Desse modo, neste trabalho, optou-se, como estudo de caso, analisar a segurança da barragem de disposição de rejeito Laborrie, localizada no distrito do ...