Measurements of Time Lag in Concrete Gravity Dam Foundations

by B. Alex Grenoble, Stone & Webster Engineering Corp, Denver, United States,
Craig W. Harris, Stone & Webster Engineering Corp, Denver, United States,
Douglas I. Morris, Stone & Webster Engineering Corp, Denver, United States,



Document Type: Proceeding Paper

Part of: Waterpower '91: A New View of Hydro Resources

Abstract:

Uplift measurements from eight large concrete gravity dams show that the time lag between an increase in headwater level and a corresponding increase in uplift pressure is insignificant. When making stability calculations, it is not appropriate to assume that time lag reduces uplift.

Subject Headings: Gravity dams | Dam foundations | Concrete dams | Uplifting behavior | Underwater foundations | Pressure measurement | Offshore structures

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