Plunge Basin Examples: Difference between revisions
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When the erosion anticipated downstream of the outlet works is minimal and/or manageable, a plunge basin (pool) is commonly used as the energy dissipator. Plunge basins may be lined or unlined. The discharge into the basin may come from a free outlet or from a valve. The following pictures are examples of plunge basins: | When the erosion anticipated downstream of the outlet works is minimal and/or manageable, a plunge basin (pool) is commonly used as the energy dissipator. Plunge basins may be lined or unlined. The discharge into the basin may come from a free outlet or from a valve. The following pictures are examples of plunge basins: | ||
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File:plunge basin.jpg|Unlined plunge basin (view is looking downstream). This basin has been allowed to scour over time. | File:plunge basin.jpg|Unlined plunge basin (view is looking downstream). This basin has been allowed to scour over time. | ||
File:concrete plunge basin.jpg | File:riprap plunge basin.jpg|A riprap-lined plunge basin. | ||
File:typical plan.jpg| | File:concrete plunge basin.jpg|Concrete-lined plunge basin with baffle wall, grouted riprap side slopes, and discharge channel. Flow discharges into the plunge basin from two 36-inch diameter fixed-cone valve. | ||
File:typical plan.jpg|Plan view of a typical lined plunge basin design. | |||
File:elevation plan.jpg|Elevation view of a typical lined plunge basin design. | |||
File:jet trajectory.jpg|Jet trajectory from a 54-inch diameter hooded fixed-cone valve. | |||
</gallery> | </gallery> | ||
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Latest revision as of 16:56, 27 June 2022
When the erosion anticipated downstream of the outlet works is minimal and/or manageable, a plunge basin (pool) is commonly used as the energy dissipator. Plunge basins may be lined or unlined. The discharge into the basin may come from a free outlet or from a valve. The following pictures are examples of plunge basins:
-
Unlined plunge basin (view is looking downstream). This basin has been allowed to scour over time.
-
A riprap-lined plunge basin.
-
Concrete-lined plunge basin with baffle wall, grouted riprap side slopes, and discharge channel. Flow discharges into the plunge basin from two 36-inch diameter fixed-cone valve.
-
Plan view of a typical lined plunge basin design.
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Elevation view of a typical lined plunge basin design.
-
Jet trajectory from a 54-inch diameter hooded fixed-cone valve.
Revision ID: 1577
Revision Date: 06/27/2022