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- Vacuum-anchor abstract "In large scale oceanic civil engineering, vacuum-anchors are ocean bottom fasteners used to anchor deep seas oil platforms (example: See Troll A Oil Platform) and other gravity base technology based structures in the soupy soft bottomed muck found on many oil bearing continental shelves and the world's shallower seas. Gravity based anchor legs flare out forming a wider footprint where they contact the bottom much as the webbed feet of many aquatic animals increase the surface area above the vacuum-anchors which are open ended long cylindrical shaped deep cups with a sealed top end closed by a valve which connects and anchors mechanically to the legs of the gravity based structure. The valve is used to exhaust any gases and liquid which seeks to escape the trapped sea bottom materials entering the open end of the anchor.Physically, these are the upscaled analog of a tall drinking glass filled with water then turned upside down and secured in place bottom-side-up. When a lifting or sideways force is applied to such a container, the weight and inertia of the enclosed mass (The mushy gravel, mud, water, and rock solution of the sea bed) must also be displaced (lifted or moved sideways) which anchors them firmly in place within the surrounding materials of the soft bottom. When lifted, any enclosed material attempting to spill out of the enclosure creates a vacuum, just as does the container in the kitchen sink, giving the anchor their name.Six to seven 40 m tall, 20 m diameter steel vacuum-anchor cylinders are used to anchor the four legs of the troll A platform depicted above. The Troll A platform stands on the sea floor 303 meters (994 ft) below the surface of the sea and one of the continuous-slip-formed concrete cylindrical legs has an elevator that takes over nine minutes to travel from the platform above the waves to the sea floor.".
- Vacuum-anchor thumbnail Troll_A_Platform.jpg?width=300.
- Vacuum-anchor wikiPageID "19679163".
- Vacuum-anchor wikiPageLength "2624".
- Vacuum-anchor wikiPageOutDegree "10".
- Vacuum-anchor wikiPageRevisionID "670248594".
- Vacuum-anchor wikiPageWikiLink Category:Civil_engineering.
- Vacuum-anchor wikiPageWikiLink Category:Oceanography.
- Vacuum-anchor wikiPageWikiLink Civil_engineering.
- Vacuum-anchor wikiPageWikiLink Cylinder_(geometry).
- Vacuum-anchor wikiPageWikiLink Gravity-based_structure.
- Vacuum-anchor wikiPageWikiLink Gravity_base_structure.
- Vacuum-anchor wikiPageWikiLink Inertia.
- Vacuum-anchor wikiPageWikiLink Slip_forming.
- Vacuum-anchor wikiPageWikiLink Troll_A_platform.
- Vacuum-anchor wikiPageWikiLink Weight.
- Vacuum-anchor wikiPageWikiLink File:Troll_A_Platform.jpg.
- Vacuum-anchor wikiPageWikiLinkText "vacuum-anchor".
- Vacuum-anchor hasPhotoCollection Vacuum-anchor.
- Vacuum-anchor wikiPageUsesTemplate Template:Convert.
- Vacuum-anchor wikiPageUsesTemplate Template:Reflist.
- Vacuum-anchor subject Category:Civil_engineering.
- Vacuum-anchor subject Category:Oceanography.
- Vacuum-anchor hypernym Fasteners.
- Vacuum-anchor type Discipline.
- Vacuum-anchor type Science.
- Vacuum-anchor comment "In large scale oceanic civil engineering, vacuum-anchors are ocean bottom fasteners used to anchor deep seas oil platforms (example: See Troll A Oil Platform) and other gravity base technology based structures in the soupy soft bottomed muck found on many oil bearing continental shelves and the world's shallower seas.".
- Vacuum-anchor label "Vacuum-anchor".
- Vacuum-anchor sameAs m.04mxqnr.
- Vacuum-anchor sameAs Q7908034.
- Vacuum-anchor sameAs Q7908034.
- Vacuum-anchor wasDerivedFrom Vacuum-anchor?oldid=670248594.
- Vacuum-anchor depiction Troll_A_Platform.jpg.
- Vacuum-anchor isPrimaryTopicOf Vacuum-anchor.