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Descripción
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| Sliding through the foundation is one of the most common mechanisms under which a gravity dam can fail and is one of the most difficult modes of failure to determine the safety due to uncertainties that the rock mass properties provides. This paper evaluates the sliding stability of existing gravity dams with a failure mechanism characterized by a sub-horizontal joint set acting as a sliding plane and with a potential failure path through the rock mass. For the study, a simplistic static analysis is considered, using the criteria of Barton-Choubey (1977) and Hoek-Brown (1980; 1992) to determine the shear strength for discontinuity and for rock mass respectively. The finite difference program FLAC 6.0 has been used to validate the model. Results show in a sensitivity analysis executed, that it is possible to define with acceptable accuracy a sliding safety factor for the mechanism proposed in a preliminary study, with a simple spreadsheet. | |
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Internacional
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Si |
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Nombre congreso
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Eurock 2014 |
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Tipo de participación
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960 |
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Lugar del congreso
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Vigo |
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Revisores
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Si |
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ISBN o ISSN
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978-1-138-00149-7 |
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DOI
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Fecha inicio congreso
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27/05/2014 |
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Fecha fin congreso
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29/05/2014 |
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Desde la página
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539 |
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Hasta la página
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544 |
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Título de las actas
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Eurock 2014 |