Simulation of the behavior of prototypes of rockfill dams during overtopping scenarios. Seepage evolution and beginning of failure

Larese, Antonia; Rossi, Riccardo; Oñate Ibáñez, Eugenio; Toledo Municio, Miguel Angel; Morán Moya, Rafael; Campos Espinoza, Hibber; Lara Dominguez, Ángel y Viña Gomez, Mª del Pilar (2011). Simulation of the behavior of prototypes of rockfill dams during overtopping scenarios. Seepage evolution and beginning of failure. En: "XI ICOLD Benchmark Workshop on Numerical Analysis of Dams", 20/10/2011-21/10/2011, Valencia, España. ISBN 978-84-695-1816-8. pp. 1-25.

Descripción

Título: Simulation of the behavior of prototypes of rockfill dams during overtopping scenarios. Seepage evolution and beginning of failure
Autor/es:
  • Larese, Antonia
  • Rossi, Riccardo
  • Oñate Ibáñez, Eugenio
  • Toledo Municio, Miguel Angel
  • Morán Moya, Rafael
  • Campos Espinoza, Hibber
  • Lara Dominguez, Ángel
  • Viña Gomez, Mª del Pilar
Tipo de Documento: Ponencia en Congreso o Jornada (Artículo)
Título del Evento: XI ICOLD Benchmark Workshop on Numerical Analysis of Dams
Fechas del Evento: 20/10/2011-21/10/2011
Lugar del Evento: Valencia, España
Título del Libro: XI ICOLD Benchmark Workshop on Numerical Analysis of Dams
Fecha: 2011
ISBN: 978-84-695-1816-8
Materias:
Escuela: E.T.S.I. Caminos, Canales y Puertos (UPM)
Departamento: Otro
Licencias Creative Commons: Reconocimiento - Sin obra derivada - No comercial

Texto completo

[img]
Vista Previa
PDF (Document Portable Format) - Se necesita un visor de ficheros PDF, como GSview, Xpdf o Adobe Acrobat Reader
Descargar (851kB) | Vista Previa

Resumen

In recent years the technology on embankments dams has developed sensibly due to the advances in soil mechanic, and in all related sciences. Nevertheless their vulnerability to overtopping still remains their weakest point in comparison with concrete structures. The principal aim of this theme is the simulation of the initial stage of failure of the dam when an overtopping or an exceptional flood occurs. A fluid-structure coupled problem has to be considered. The sudden variation of the upstream conditions induces a quick evolution of a seepage line in the downstream shoulder. Non linear Darcy law has to be taken into account. On the other hand the water, emerging from the toe of the dam, induces dragging of particles and possible mass sliding, depending on geometrical and material conditions. UPM and CEDEX have carried out more than 70 experiments during the last two years. They analyzed the influence of a series of parameters on the failure mechanisms. These parameters are, for instance, the dimension of the rocks, the slope of the downstream part of the dam, the type of impermeable element used, and so on. We propose to reproduce numerically three experiments analyzing the evolution of seepage and following initial stage of failure in the case of a homogeneous dam, of a dam with impermeable upstream face and of a dam with internal core. Experimental data, bottom pressure distribution and topographic analysis of the geometry of the dam during the failure can be compared with numerical results.

Proyectos asociados

TipoCódigoAcrónimoResponsableTítulo
Gobierno de EspañaBIA2010-21350-C03-00e-DAMSRiccardo RossiMétodos numéricos y experimentales para la evaluación de la seguridad y protección de las presas de materiales sueltos en situación de sobrevertido

Más información

ID de Registro: 48674
Identificador DC: http://oa.upm.es/48674/
Identificador OAI: oai:oa.upm.es:48674
Depositado por: Memoria Investigacion
Depositado el: 04 Dic 2017 16:19
Ultima Modificación: 04 Dic 2017 16:19
  • Open Access
  • Open Access
  • Sherpa-Romeo
    Compruebe si la revista anglosajona en la que ha publicado un artículo permite también su publicación en abierto.
  • Dulcinea
    Compruebe si la revista española en la que ha publicado un artículo permite también su publicación en abierto.
  • Recolecta
  • e-ciencia
  • Observatorio I+D+i UPM
  • OpenCourseWare UPM