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

Larese, Antonia and Rossi, Riccardo and Oñate Ibáñez, Eugenio and Toledo Municio, Miguel Ángel and Morán Moya, Rafael and Campos Espinoza, Hibber and Lara Dominguez, Ángel and Viña Gomez, Mª del Pilar (2011). Simulation of the behavior of prototypes of rockfill dams during overtopping scenarios. Seepage evolution and beginning of failure. In: "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.

Description

Title: Simulation of the behavior of prototypes of rockfill dams during overtopping scenarios. Seepage evolution and beginning of failure
Author/s:
  • Larese, Antonia
  • Rossi, Riccardo
  • Oñate Ibáñez, Eugenio
  • Toledo Municio, Miguel Ángel
  • Morán Moya, Rafael
  • Campos Espinoza, Hibber
  • Lara Dominguez, Ángel
  • Viña Gomez, Mª del Pilar
Item Type: Presentation at Congress or Conference (Article)
Event Title: XI ICOLD Benchmark Workshop on Numerical Analysis of Dams
Event Dates: 20/10/2011-21/10/2011
Event Location: Valencia, España
Title of Book: XI ICOLD Benchmark Workshop on Numerical Analysis of Dams
Date: 2011
ISBN: 978-84-695-1816-8
Subjects:
Faculty: E.T.S.I. Caminos, Canales y Puertos (UPM)
Department: Otro
Creative Commons Licenses: Recognition - No derivative works - Non commercial

Full text

[img]
Preview
PDF - Requires a PDF viewer, such as GSview, Xpdf or Adobe Acrobat Reader
Download (851kB) | Preview

Abstract

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.

Funding Projects

TypeCodeAcronymLeaderTitle
Government of SpainBIA2010-21350-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

More information

Item ID: 48674
DC Identifier: http://oa.upm.es/48674/
OAI Identifier: oai:oa.upm.es:48674
Deposited by: Memoria Investigacion
Deposited on: 04 Dec 2017 16:19
Last Modified: 17 Oct 2018 12:11
  • Logo InvestigaM (UPM)
  • Logo GEOUP4
  • Logo Open Access
  • Open Access
  • Logo Sherpa/Romeo
    Check whether the anglo-saxon journal in which you have published an article allows you to also publish it under open access.
  • Logo Dulcinea
    Check whether the spanish journal in which you have published an article allows you to also publish it under open access.
  • Logo de Recolecta
  • Logo del Observatorio I+D+i UPM
  • Logo de OpenCourseWare UPM