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  2. Kings Norton - Wikipedia

    en.wikipedia.org/wiki/Kings_Norton

    Amongst some of the features available are a concrete half pipe with a deck at each end, a Funbox that includes a flat rail, stairs with a ledge on either side, a Vulcano which also has ledge, as well as a concrete spine with Coping. [clarification needed]

  3. Half-pipe - Wikipedia

    en.wikipedia.org/wiki/Half-pipe

    Half-pipe diagram. Half-pipe applications include leisure recreation, skills development, competitive training, amateur and professional competition, demonstrations, and as an adjunct to other types of skills training. A skilled athlete can perform in a half-pipe for an extended period of time by pumping to attain extreme speeds with relatively ...

  4. Tremie - Wikipedia

    en.wikipedia.org/wiki/Tremie

    The tremie concrete placement method uses a vertical or nearly vertical pipe, through which concrete is placed by gravity feed below water level. [4]The lower end of the pipe is kept immersed in fresh concrete so that concrete rising from the bottom displaces the water above it, thus limiting washing out of the cement content of the fresh concrete at the exposed upper surface.

  5. Pipe (fluid conveyance) - Wikipedia

    en.wikipedia.org/wiki/Pipe_(fluid_conveyance)

    Pipe sizes can be confusing because the terminology may relate to historical dimensions. For example, a half-inch iron pipe does not have any dimension that is a half inch. Initially, a half inch pipe did have an inner diameter of 1 ⁄ 2 inch (13 mm)—but it also had thick walls. As technology improved, thinner walls became possible, but the ...

  6. Prestressed concrete cylinder pipe - Wikipedia

    en.wikipedia.org/wiki/Prestressed_concrete...

    Prestressed concrete cylinder pipe (PCCP) is a common variety of large-diameter concrete pressure pipe used for transporting water and wastewater. PCCP is typical manufactured according to the American Water Works Association (AWWA) standard C304. [ 1 ]

  7. Culvert - Wikipedia

    en.wikipedia.org/wiki/Culvert

    Culverts come in many sizes and shapes including round, elliptical, flat-bottomed, open-bottomed, pear-shaped, and box-like constructions. The culvert type and shape selection is based on a number of factors including requirements for hydraulic performance, limitations on upstream water surface elevation, and roadway embankment height.

  8. Hydraulic diameter - Wikipedia

    en.wikipedia.org/wiki/Hydraulic_diameter

    For a fully filled duct or pipe whose cross-section is a convex regular polygon, the hydraulic diameter is equivalent to the diameter of a circle inscribed within the wetted perimeter. This can be seen as follows: The N {\displaystyle N} -sided regular polygon is a union of N {\displaystyle N} triangles, each of height D / 2 {\displaystyle D/2 ...

  9. Centrifugal casting (industrial) - Wikipedia

    en.wikipedia.org/wiki/Centrifugal_casting...

    Video of concrete pipe production. Centrifugal casting or rotocasting is a casting technique that is typically used to cast thin-walled cylinders. It is typically used to cast materials such as metals, glass, and concrete. A high quality is attainable by control of metallurgy and crystal structure.