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Failure of dams arranged in series or in complex

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Abstract

A practical methodology has been developed for predicting flows generated by dam failures or malfunctions in a complex or a series of dams. A twofold approach is followed. First, the waves induced in the downstream reservoirs are computed, as well as hydrodynamic impacts induced on downstream dams and dikes are estimated. Second, the flood wave propagation and the inundation process are simulated in the downstream valley, accounting for possible dam collapse or breaching in cascade. Two complementary flow models are combined: a two-dimensional fully dynamic model and a simplified lumped model. At each stage, the methodology provides guidelines to select the most appropriate model for efficiently computing the induced flows. Both models handle parametric modeling of gradual dam breaching. The procedure also incorporates prediction of breach formation time and final width, as well as sensitivity analysis to compensate for the high uncertainties remaining in the estimation of breach parameters. The applicability of the modeling procedure is demonstrated for a case study involving a 70-m high-gravity concrete dam located upstream of four other dams. Copyright Springer Science+Business Media B.V. 2011

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  • Benjamin Dewals & Sébastien Erpicum & Sylvain Detrembleur & Pierre Archambeau & Michel Pirotton, 2011. "Failure of dams arranged in series or in complex," Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, Springer;International Society for the Prevention and Mitigation of Natural Hazards, vol. 56(3), pages 917-939, March.
  • Handle: RePEc:spr:nathaz:v:56:y:2011:i:3:p:917-939
    DOI: 10.1007/s11069-010-9600-z
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    References listed on IDEAS

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    1. Paul Kamrath & Markus Disse & Matthias Hammer & Jürgen Köngeter, 2006. "Assessment of Discharge through a Dike Breach and Simulation of Flood Wave Propagation," Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, Springer;International Society for the Prevention and Mitigation of Natural Hazards, vol. 38(1), pages 63-78, May.
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    Cited by:

    1. Te Wang & Zongkun Li & Wei Ge & Yadong Zhang & Yutie Jiao & Hua Zhang & Heqiang Sun & Pieter Gelder, 2023. "Risk assessment methods of cascade reservoir dams: a review and reflection," Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, Springer;International Society for the Prevention and Mitigation of Natural Hazards, vol. 115(2), pages 1601-1622, January.
    2. Taesam Lee & Kiyoung Seong & Seung Oh Lee & Hyung Ju Yoo, 2022. "Safety First? Lessons from the Hapcheon Dam Flood in 2020," Sustainability, MDPI, vol. 14(5), pages 1-22, March.

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