Barragem Maravilhas: Continuidade das atividades do Plano de Preparação para o Período Chuvoso
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Barragem Maravilhas: Continuidade das atividades do Plano de Preparação para o Período Chuvoso
Durante o mês de outubro, demos continuidade às atividades listadas no Plano de Preparação para o Período Chuvoso (PPC) na Barragem Maravilhas III, situada em Nova Lima. O objetivo deste trabalho é reforçar ainda mais a segurança da estrutura e nos preparamos para o período de chuva.
Seguimos construindo canaletas de drenagem, caixas de passagem e sistema de contenção de finos conforme planejado.
No período de 21 de setembro a 20 de outubro houve precipitação em nove dias, que somadas resultaram em um acumulado mensal de 73,50 mm. Em 2021, as análises realizadas neste período apresentaram um acumulado de cerca de 230 mm. A ocorrência dessas chuvas marcam o início do período chuvoso e já era o esperado.
Relembramos que este plano foi aprovado pelo Engenheiro de Registro (EOR) e apresentado aos órgãos de fiscalização e auditoria de barragens. O EOR é um profissional que tem entre suas atribuições a realização da inspeção de segurança regular, bem como a emissão de relatórios técnicos mensais, interpretando continuamente os resultados das atividades de inspeção e monitoramento das estruturas. Ele é externo às operações e independente da Vale, de forma a atuar com a autoridade requerida para esse tipo de função.
Ressaltamos ainda que para este período a Vale intensifica as inspeções em campo das estruturas, fazendo análises de acordo com os registros pluviométricos. Há também o monitoramento 24 horas, por 7 dias da semana, via Centro de Monitoramento Geotécnico (CMG).
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