A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Slide Gate Tests, Norfork Dam, North Fork River, Arkansas: Preliminary Report
Results of full-scale tests of two types of slide gates under high heads at Norfork Dam, Arkansas, indicated that the performance of a gate with a 45-degree upstream bevel at the lower edge (type B) was superior to that of the Norfork-type gate (type A) which had a flat bottom with a slight slope to fit the sealing surface. High negative pressures on the gate bottom, considerable gate vibration, and crackling sounds characteristic of cavitation were noted for most gate openings of the Norfork gate. By contrast, high positive pressures occurred over the sloping bottom of the 45-degree gate, resulting in elimination of cavitation sounds and in a marked reduction in gate vibration. The high positive pressures also resulted in less air demand at partial gate opening.
Slide Gate Tests, Norfork Dam, North Fork River, Arkansas: Preliminary Report
Results of full-scale tests of two types of slide gates under high heads at Norfork Dam, Arkansas, indicated that the performance of a gate with a 45-degree upstream bevel at the lower edge (type B) was superior to that of the Norfork-type gate (type A) which had a flat bottom with a slight slope to fit the sealing surface. High negative pressures on the gate bottom, considerable gate vibration, and crackling sounds characteristic of cavitation were noted for most gate openings of the Norfork gate. By contrast, high positive pressures occurred over the sloping bottom of the 45-degree gate, resulting in elimination of cavitation sounds and in a marked reduction in gate vibration. The high positive pressures also resulted in less air demand at partial gate opening.
Slide Gate Tests, Norfork Dam, North Fork River, Arkansas: Preliminary Report
1949
73 pages
Report
No indication
English
Slide gate tests, Norfolk dam, North Fork river, Arkansas
Engineering Index Backfile | 1954
Tainter gate tests Norfork dam, North Fork river, Arkansas
Engineering Index Backfile | 1954
Norfork Dam in Arkansas nears completion
Engineering Index Backfile | 1944
Construction cableways on Norfork Dam
| Engineering Index Backfile | 1945