Título: | EVALUATION OF HYDRAULIC PROPERTIES OF UNSATURATED TROPICAL SOILS | |||||||
Autor: |
MONICA PRISCILLA HERNANDEZ MONCADA |
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Colaborador(es): |
TACIO MAURO PEREIRA DE CAMPOS - Orientador |
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Catalogação: | 07/OUT/2008 | 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=12304&idi=1 [en] https://www.maxwell.vrac.puc-rio.br/projetosEspeciais/ETDs/consultas/conteudo.php?strSecao=resultado&nrSeq=12304&idi=2 |
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DOI: | https://doi.org/10.17771/PUCRio.acad.12304 | |||||||
Resumo: | ||||||||
The present research work had two main objectives. The
first was to obtain a geotechnical index for measuring the
weathering degree of gneissic residual
soils. For that it were analyzed data corresponding to
typical weathering profiles
found in the municipality of Rio de Janeiro and executed a
complete
characterization of a specific weathering profile of
facoidal gneiss. The second
objective was to determine, experimentally, the hydraulic
properties of tropical
unsaturated soils. As part of that new instruments were
developed and existing
equipments were modified. Moisture retention curves were
determined for six
residual soils and two sedimentary ones. The axis-
translation technique, the filter
paper method and the relative humidity one were employed to
obtain such curves.
Data from mercury intrusion porosimetry tests were also
used to define these
curves. The applicability of models available in literature
to adjust the obtained
experimental data was evaluated. The hydraulic conductivity
function was
determined for two soils, one residual and one sedimentary.
A suction controlled,
flexible wall permeameter set up was used for that.
Numerical modeling was
implemented to evaluate the performance of the experimental
set up. This
provided means for an optimized interpretation of the
testing results. The
applicability of models available in the literature to
obtain the permeability
functions was evaluated, being found the need to introduce
changes in their
formulation in order to be able to reproduce the obtained
experimental data.
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