Stepped Spillway Design for Flow Over Embankmentsby Kathleen Houston Frizell, US Bureau of Reclamation, Denver, United States,
Abstract: Many embankment dams have been identified as unable to pass their design flows without failure due to overtopping. The U.S. Bureau of Reclamation (Reclamation) is currently at the forefront of pursuing the technology of providing overtopping protection for embankment dams. The major emphasis of Reclamation's research program is to determine the capability of a stepped concrete overlay to protect the embankment from erosion during passage of large design flows. This paper will discuss the test program, laboratory and near-prototype facilities, and the current test results for horizontal steps on a 2:1 slope.
Subject Headings: Embankment dams | Dam failures | Wave overtopping | Bureau of Reclamation | Spillways | Hydraulic models | Model tests
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