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Dynamic Effect of Sediment on Dam Hydrodynamics

by Tin-Kan Hung, Univ of Pittsburgh, Pittsburgh, United States,
Bang-Fuh Chen, Univ of Pittsburgh, Pittsburgh, United States,
Kuo-Chyang Chang, Univ of Pittsburgh, Pittsburgh, United States,



Document Type: Proceeding Paper

Part of: Mechanics Computing in 1990's and Beyond

Abstract:

The dam-reservoir-foundation interaction problem has been studied by many investigators. A two dimensional model of compressible porous media is employed to analyze the dynamic response of reservoir sediment and the impounded water during ground accelerations. The effects of the bulk modulus of pore water in the sediment on a reduction in hydrodynamic pressure acting on a vertical rigid dam face are studied. However, an increase in pressure is also identified; it is associated with a decrease in porosity near the dam and a rise of the Stokes drag in the porous medium.

Subject Headings: Dams | Two-dimensional models | Sediment | Hydrodynamics | Reservoirs | Dynamic structural analysis | Dynamic response

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