Uplift under Concrete Dams on Rock

by Jerry L. Foster, Federal Energy Regulatory Commission, United States,



Document Type: Proceeding Paper

Part of: Waterpower '89

Abstract: While the possible existence of uplift pressures within dams and foundations is no longer questioned, there is still considerable controversy over the magnitude and distribution of uplift pressures at existing structures. In 1987, The Federal Energy Regulatory Commission (FERC) published 'Engineering Guidelines for the Evaluation of Hydropower Projects' which established the uplift criteria by which non-federal hydropower projects are evaluated for dam safety. FER's experience with more than 500 existing concrete dams has allowed staff engineers to become familiar with the problems associated with evaluating older dams by current criteria.

Subject Headings: Concrete dams | Uplifting behavior | Hydro power | Pressure distribution | Dam foundations | Federal government | Dam safety | Earthfill dams

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