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|Title:||Spillway gate vibrations on Arkansas River dams, Arkansas and Oklahoma : hydraulic model investigation|
|Authors:||United States. Army. Corps of Engineers. Little Rock District.|
United States. Army. Corps of Engineers. Tulsa District.
Pickering, Glenn A.
|Keywords:||Arkansas River Navigation Project|
|Publisher:||Hydraulics Laboratory (U.S.)|
Engineer Research and Development Center (U.S.)
|Series/Report no.:||Technical report (U.S. Army Engineer Waterways Experiment Station) ; H-71-5.|
Abstract: The Arkansas River navigation project has 17 individual lock and dam projects. Vibration of the tainter gates has been reported at several of these dams, the major causes of the gate vibrations being the gate lip and bottom seal designs. A 1:12-scale model that reproduced one 60-ft-wide gate bay and the adjacent half bays was used to investigate the gate vibrations. The central gate reproduced the prototype with respect to size, shape, and weight, whereas the adjacent gates were only schematic. Prototype water-surface elevations and flow conditions were accurately reproduced in the model. The vibrations of the prototype gates that were attributable to the gate lip geometry were reproduced in the model for similar flow conditions. Revisions in the shape of the gate lip were made that successfully eliminated the vibrations. The vibrations of the prototype gates that were attributable to the fluttering of the rubber seal were not exactly reproduced in the model for similar flow conditions because of the inability to reproduce the elastic and geometric properties of the rubber seal. However, it was determined in the model that there would be no vibrations for any flow conditions with the rubber seal and backing plate removed. Removal of the seal is considered feasible for the prototype because none of the Arkansas project prototype structures that used this type of seal have power-generating units and thus some leakage under the gates is allowable.
|Appears in Collections:||Technical Report|