Research Study on Stilling Basins, Energy Disipators, and Associated Appurtenances--Section 14, Modification of Section 6 (Stilling Basin for Pipe or Open Channel Outlets--Basin Vi)

摘要

Model studies on 1.6- and 2.4-ft-wide (48.76 and 73.15 cm) Type VI stilling basins were conducted to modify existing standard design procedures. Investigations were concerned with: basin entrance flow conditions including type of entrance, slope, velocity, and Froude number; basin dimensions in relation to the basin width; basin width in relation to Froude number; and riprap size and location. Performance was evaluated in terms of energy dissipation and prototype operation. An optimum tailwater, an alternate end sill design, methods of preventing clogging of the basin, and means for automatic removal of sediment from the basin were suggested. (Author)