Watts Bar Lock Valve Model Study
ENGINEER RESEARCH AND DEVELOPMENT CENTER VICKSBURG MS COASTAL AND HYDRAULICS LAB
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A 110-scale physical model has been used to evaluate the performance of the replacement reverse tainter lock culvert valves at Watts Bar Lock and Dam on the Tennessee River. Project personnel have reported problems associated with the replacement valves during normal and emergency operations. This model study was conducted to determine the valve hoist loads during normal and emergency operations, culvert pressures downstream of the valve, and cavitation potential for various valve openings. Design modifications to improve performance were to be recommended. The model tests revealed the maximum valve hoist loads are reduced when the top seal plate is removed. A horizontal plate installed at the bottom of the valve increases valve hoist loads and valve movement for the larger openings. Tests of the original double-skin-plated valve showed that the valve hoist loads were higher with the original valve. These higher loads were attributed to the interior of the valve being filled with water. This report contains the analysis of data acquired for the original double-skin plated valve and the replacement vertically-framed valve and subsequent modifications.
- Civil Engineering
- Pumps, Filters, Pipes, Tubing, Fittings and Valves