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Título: BEHAVIOR OF A REINFORCEMENT LANDFILL FOR MINING WASTE CONTAINMENT BUILT ON SOFT SOILS
Autor: MIRYAN YUMI SAKAMOTO
Colaborador(es): CELSO ROMANEL - Orientador
JACKELINE ROSEMERY CASTANEDA HUERTAS - Coorientador
Catalogação: 26/JUN/2023 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=63021&idi=1
[en] https://www.maxwell.vrac.puc-rio.br/projetosEspeciais/ETDs/consultas/conteudo.php?strSecao=resultado&nrSeq=63021&idi=2
DOI: https://doi.org/10.17771/PUCRio.acad.63021
Resumo:
In this present research, it was done an interpretation of the reinforcement work s behavior in a containment dike/dam for mining waste built on soft soils. It was defined the geotechnical profile and the heightening steps to be performed using the finite element method in the Plaxis 2D software. To define the parameters, the field and laboratory tests were interpreted, and in the laboratory tests in which the curvatures were known, it was possible to apply parameters with the simulation of tests in an extension of Plaxis (Soil test). In the case of sandy silt soils and embankments materials, as was done with the Hardening Soil Model. For the clay layers, five different scenarios were simulated with the models: Soft Soil, Hardening Soil and Mohr Coulomb with effective strength parameters and Hardening Soil and Mohr Coulomb with undrained strength parameters. The displacement results were compared with each other and with field monitoring data. For the stability analysis the five scenarios were analyzed among themselves and with the results of a conventional analysis with limit equilibrium in terms of total strength. Also the application of the Displaced Volumes Method as a way of verifying its suitability to in situ monitoring of the stability of the work at each constructive stage.
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