Uplift Reduction Using Drains

by Tissa H. Illangasekare, Univ of Colorado, Boulder, CO, USA,
Bernard Amadei, Univ of Colorado, Boulder, CO, USA,
C. Chinnaswamy, Univ of Colorado, Boulder, CO, USA,



Document Type: Proceeding Paper

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

Abstract:

Uplift in cracks and in rock-concrete interface plays a crucial role in dam stability. Drains can be designed to intersect these cracks to reduce uplift. This paper explains how the effectiveness of drains in reducing uplift was investigated using laboratory experiments. A computer program was developed to allow analysts to model real or potential cases of cracks and to investigate the effects of alternative drain designs.

Subject Headings: Uplifting behavior | Drainage | Concrete dams | Gravity dams | Cracking | Fluid flow | Fluid dynamics

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