Author(s): Jose Llamas
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Abstract: The stilling basin of a dam is usually designed in order to dissipate the kinetic water energy. However, when the ice blocks pass over the spillway, their penetration in the basin can be greater than the design depth and under this condition the impact with the downstream revetment may damage seriously the structure. The stilling basin is created naturally by the downstream level of water or by a sill. In this case, the length of the basin must be greater than the horizontal path of the ice block. The objective of this study is to evaluate the block trajectory and determine the main factors affecting the block position under several hydraulic and structural conditions.
Year: 1972