Logo PUC-Rio Logo Maxwell
ETDs @PUC-Rio
Estatística
Título: MONITORING TAILINGS DAMS USING GEOPHYSICAL METHODS OF ELECTRICAL RESISTIVITY AND MICROSSEISMIC IN THE STATE OF GOIÁS
Autor: ALINE ROZA DE FARIA
Colaborador(es): TACIO MAURO PEREIRA DE CAMPOS - Orientador
MARCO ANTONIO DA SILVA BRAGA - Coorientador
Catalogação: 28/OUT/2024 Língua(s): PORTUGUESE - BRAZIL
Tipo: TEXT Subtipo: THESIS
Notas: [pt] Todos os dados constantes dos documentos são de inteira responsabilidade de seus autores. Os dados utilizados nas descrições dos documentos estão em conformidade com os sistemas da administração da PUC-Rio.
[en] All data contained in the documents are the sole responsibility of the authors. The data used in the descriptions of the documents are in conformity with the systems of the administration of PUC-Rio.
Referência(s): [pt] https://www.maxwell.vrac.puc-rio.br/projetosEspeciais/ETDs/consultas/conteudo.php?strSecao=resultado&nrSeq=68497&idi=1
[en] https://www.maxwell.vrac.puc-rio.br/projetosEspeciais/ETDs/consultas/conteudo.php?strSecao=resultado&nrSeq=68497&idi=2
DOI: https://doi.org/10.17771/PUCRio.acad.68497
Resumo:
The monitoring of tailings dams, crucial to prevent accidents, is based on visual inspections and geotechnical instrumentation. Due to recent incidents, enhancement has become crucial, leading to the inclusion of geophysics in this study. Therefore, aiming to improve conventional monitoring during and after the alteration of two dams located in Catalão, Goiás, a campaign was conducted to obtain six electrical resistivity profiles to assess subsurface saturation conditions. Additionally, a microseismic monitoring system was implemented, involving fifteen seismic stations. By analyzing anomalies identified during the campaign in May 2022 and geological sections, it was possible to identify areas with unexpectedly high moisture content in places where such occurrences were not expected. Conventional microseismic monitoring revealed that most detonations did not significantly cause the mass to vibrate worryingly, with alerts primarily triggered by human activity and machinery movement. However, in the case of passive microseismic monitoring, due to the short monitoring period, no significant variations in the velocity percentage were recorded to enable a conclusive analysis of the mass s behavior.
Descrição: Arquivo:   
COMPLETE PDF