Effect of Sediment on Dynamic Pressure of Gravity Dams Using an Analytical Solution.

This paper presents an analytical solution to get a reliable estimation of the earthquake-induced hydrodynamic pressure on gravity dams by proposing closed-form formulas for the eigenvalues involved when solving the fluid and dam interaction problem. A new analytical technique is presented for calculation of earthquake-induced hydrodynamic pressure on rigid gravity dams allowing for water compressibility and wave absorption at the reservoir bottom. This new analytical solution can take into account the effect of bottom material on seismic response of gravity dams. The obtained results are in good agreement with other classical solutions. The main capability of proposed analytical solution is direct calculation of eigenvalues, without any need for numerical solution. In addition the method can be easily incorporated in dynamic analysis of a dam. [ABSTRACT FROM AUTHOR]