Research Article
Jan 1973
Transient Hydraulic Simulation of Breached Earth Dams
Publication: Journal of the Hydraulics Division
Volume 99, Issue 1
Abstract
A conceptual method to alleviate flood damages due to overtopping failures of future small earthfill dams is the incorporation of a relatively thin erosion retarding layer within the dam. This paper investigates the potential reduction in the reservoir release due to the proposed erosion retarding layer. The paper provides a method for the determination of an optimal location of the layer so as to minimize the maximum possible reservoir release due to a gradually breached earth dam. The transient reservoir flow is simulated by a numerical model, based upon the solution of the one-dimensional St. Venant unsteady open-channel flow equations. These equations are solved by the method of characteristics, with appropriate boundary conditions incorporated into the solution procedure. The numerical simulation model is used to determine the reduction in reservoir release due to a single retarding layer and its optimal location for a wide range of pertinent geometric, hydraulic and dynamic parameters.
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Published In
Journal of the Hydraulics Division
Volume 99 • Issue 1 • January 1973
Pages: 139 - 154
Copyright
© 1973 American Society of Civil Engineers.
History
Published in print: Jan 1973
Published online: Feb 3, 2021
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Authors
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Danny L. Fread, M.ASCE
Hydro., Office of Hydrology-National Weather Service, National Oceanic and Atmospheric Admin., Silver Spring, Md
Terence E. Harbaugh, M.ASCE
Assoc. Prof. of Civ. Engrg., Dept. of Civ. Engrg., Univ. of Missouri-Rolla, Rolla, Mo
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ASCE Library Cards let you download journal articles, proceedings papers, and available book chapters across the entire ASCE Library platform. ASCE Library Cards remain active for 24 months or until all downloads are used. Note: This content will be debited as one download at time of checkout.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.