Author(s): Gustavo A. Delgado F. ; Oscar Paz Paiz
Linked Author(s):
Keywords: Dams; Weirs; Coefficients; Upstream; Labyrinth
Abstract: In recent times more dams are starting to use labyrinth weirs to replace structures due to the fact that the original structure is insufficient. This weir increases the volume of discharge in a high event situation. The advantage is the actual increase of the body' s normal level of water to replace dam volume losses, while maintaining the same level of high water. These losses might be due to sedimentation and incomplete hydrology. The position of the weir in the discharge channel influences the increase of the discharge, and it is well known that the larger amount of water that is placed above this structure, far from the effects of the channel walls, the larger the discharge coefficient becomes. The numerical specification (graphics discharge coefficient) is important to be implemented in any design or rehabilitation. This aspect is important in cases where spill weirs are replaced by maze cornices, which seek to maximize the available space.
Year: 2015