1st Edition

Dam Protections against Overtopping and Accidental Leakage

    In the last decades, the technology of dam protection has undergone major advancements. The increasing demand for safety in modern society has created the need for cost-effective measures to protect critical infrastructure such as dams. This situation has resulted in the drafting of new regulations and technical manuals in countries like Norway, Sweden, and the USA, among others.

    Dam Protections against Overtopping and Accidental Leakage includes the latest advances in dam protection, and a portfolio of applications in representative case studies. The main topics include:

    - Failure of embankment and concrete dams due to overtopping or accidental leakage

    - Hard protections for embankment dams (RCC, wedge-shaped blocks, reinforced concrete slabs)

    - Soft protections for embankment dams (rockfill toes, articulated concrete blocks, vegetation cover)

    - Concrete dam protections and additional issues directly related to dam protections

    The book includes contributions from the 1st International Seminar on Dam Protections against Overtopping and Accidental Leakage (Madrid, Spain, 24-26 November 2014), and also a summary of the technical manual "Overtopping Protection for Dams", published by the US Federal Emergency Management Agency (FEMA) in March 2014. Dam Protections against Overtopping and Accidental Leakage provides a comprehensive summary of dam protections, covering case studies and applied research worldwide, and will be invaluable to professionals and academics in Dam Engineering.

    Preface
    Acknowledgements
    Scientific and Organizing Committees
    Organizing institutions
    Supporting institutions
    Sponsoring company


    Keynote lectures

    Technical manual: Overtopping protection for dams
    T.E. Hepler

    Review of embankment dam protections and a design methodology for downstream rockfill toes
    R. Morán

    Flood overtopping protection for concrete dams
    W.R. Fiedler


    Failure of embankment dams due to overtopping or accidental leakage

    Dam failures of embankment dams caused by overtopping or accidental leakage – New aspects for breach widening and deepening processes
    A. Vogel, J.-R. Courivaud & K. Jarecka

    Failure of dams due to overtopping – A historical prospective
    M.J. Harris

    Overtopping and internal erosion on small dams in Burkina Faso
    A. Nombré, E.A. Somda, M. Kabore & F. Millogo

    Failure of the downstream shoulder of rockfill dams in overtopping or accidental leakage scenario
    M.Á. Toledo, H. Campos, Á. Lara & R. Cobo

    Structural failure of the clay core or the upstream face of rockfill dams in overtopping scenario
    M.Á. Toledo, R.M. Alves & R. Morán

    Simulation of the beginning of failure in rockfill dams caused by overtopping
    A. Larese, R. Rossi & E. Oñate

    CFD study of the time dependent flow pattern around the slope of rockfill dams in overtopping scenario
    J. San Mauro, M.Á. Toledo & R. Morán


    Soft protections for embankment dams

    Design of overtopping-resistant rockfill dams
    M.Á. Toledo & L. Morera

    Isoresistant double slope for the optimization of overtopping-resistant rockfill dams
    M.Á. Toledo & L. Morera

    Practical challenges and experience from large-scale overtopping tests with placed riprap
    P.H. Hiller & L. Lia


    Hard protections for embankment dams

    Continuously-reinforced concrete slab spillways built over embankment dams in Spain: Molino de la Hoz and Llodio Dams
    R.M. Alves & R. Morán

    Comprehensive literature review on dam overtopping incidents
    N. Tavakoli

    Barriga Dam spillway: a case study of wedge-shaped blocks technology
    R. Morán & M.Á. Toledo

    Physical and numerical modeling for understanding the hydraulic behaviour ofWedge-Shaped-Blocks spillways
    F.J. Caballero, F. Salazar, J. San Mauro & M.Á. Toledo


    Masonry dams failure due to overtopping and its protections

    Failures of masonry or concrete dams by overtopping
    A. Vogel, F. Laugier & E. Bourdarot

    Laboratory measurements and numerical simulations of overtopping nappe impingement jets
    J.M. Carrillo & L.G. Castillo

    Characterization of the dynamic actions and scour estimation downstream of a dam
    L.G. Castillo & J.M. Carrillo

    Highly-converging chutes as an overtopping protection for concrete dams: physical and numerical modelling
    L. Morera, J. San Mauro, F. Salazar & M.Á. Toledo


    Miscellaneous

    Probabilistic methods for hydrologic dam safety analysis
    I. Flores, A. Sordo-Ward & L. Garrote

    Two-dimensional direct rainfall hydraulic models applied to direct calculation of hydrologic events in dams to prevent overtopping
    P. Batanero, I. Martínez & E. Martínez

    CFD analysis of flow pattern in labyrinth weirs
    F. Salazar, J. San Mauro, E. Oñate & M.Á. Toledo

    Analysis of the design of energy-dissipating structure in spillways
    I. Robles, A. Palacio & A. Rodríguez

    Author index

    Biography

    Miguel Ángel Toledo & Rafael Morán, Department of Civil Engineering: Hydraulics, Energy and Environment E.T.S. de Ingenieros de Caminos, Technical University of Madrid, Madrid, Spain. Eugenio Oñate, International Center for Numerical Methods in Engineering, Barcelona, Spain.