ETDs @PUC-Rio
| Título: | PROBABILITY ANALYSIS OF THE A TAILING DAM | ||||||||||||
| Autor: |
VINICIUS PAIVA CABRAL BRAGA |
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| Colaborador(es): |
ALBERTO DE SAMPAIO FERRAZ JARDIM SAYAO - Orientador |
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| Catalogação: | 17/MAI/2021 | Língua(s): | PORTUGUESE - BRAZIL |
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| 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. |
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| Referência(s): |
[pt] https://www.maxwell.vrac.puc-rio.br/projetosEspeciais/ETDs/consultas/conteudo.php?strSecao=resultado&nrSeq=52748&idi=1 [en] https://www.maxwell.vrac.puc-rio.br/projetosEspeciais/ETDs/consultas/conteudo.php?strSecao=resultado&nrSeq=52748&idi=2 |
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| DOI: | https://doi.org/10.17771/PUCRio.acad.52748 | ||||||||||||
| Resumo: | |||||||||||||
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This work aims the results of the application of probabilistic analyzes in the evaluation of slope stability, based on the case of the rupture of a tailings dam that colapse in January 2019. A statistical analysis of the geotechnical characteristics of the materials present in the work was carried out, emphasizing the inherent variability of the data. In the probabilistic analyzes, the FOSM method was adopted. The basic concepts of reliability and probability of rupture and the hypotheses and calculation steps considered in each method are presented. The different limit equilibrium methods used for circular rupture surfaces are briefly discussed. Two scenarios were studied in relation to the adopted procedures: total stress analysis, with the resistance of soft clay obtained by field and laboratory tests; effective stress analysis with the angle of friction of the clay from field and laboratory tests. It was observed that for the two scenarios the values of probability of rupture were, respectively, in the order of 1/3,5 e 1/312,5.
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