Research Article
Jul 1977
Behavior of Auxiliary Intake of Ramganga Dam at Low Levels
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VIEW THE REPLYPublication: Journal of the Hydraulics Division
Volume 103, Issue 7
Abstract
In June, 1975, when the auxiliary intake of Ramganga Dam was being run, its hemispherical trash-rack was lifted up, displaced from its seat, and subsequently sucked into the tunnel. Model studies were conducted to investigate the causes of the trash-rack displacement and of the auxiliary intake behavior at low reservoir levels. The studies indicated that the release of air-water spouts resulting from escape of locked air in the tunnel through the intake shaft at a reservoir level of El.970.46-ft could have lifted up and displaced the hemispherical trash-rack. In order to avoid air entry into the tunnel, a regulation curve for HB valve operation has been suggested to prevent recurrence of such a phenomenon in the future.
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Published In
Journal of the Hydraulics Division
Volume 103 • Issue 7 • July 1977
Pages: 753 - 762
Copyright
© 1977 American Society of Civil Engineers.
History
Published in print: Jul 1977
Published online: Feb 3, 2021
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Authors
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Hari Mohan
Chf. Engr., Design and Research, Irrigation Dept., U.P., India
Shivaraj S. Tiagi
Asst. Research Officer; U.P. Irrigation Research Inst., Roorkee, India
Dharam V. Varshney
Research Officer; U.P. Irrigation Research Inst., Roorkee, India
Heramb D. Sharma
Dir., U.P. Irrigation Research Inst., Roorkee, India
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