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- Tetrapod_(structure) abstract "In coastal engineering, a tetrapod is a tetrahedral concrete structure used as armour unit on breakwaters. A tetrapod's shape is designed to dissipate the force of incoming waves by allowing water to flow around rather than against it, and to reduce displacement by allowing a random distribution of tetrapods to mutually interlock.Earlier barrier material used in breakwaters, such as boulders and conventional concrete blocks, tended to become dislodged over time by the force of the ocean constantly crashing against them. Tetrapods and similar structures are often numbered so any displacement that occurs can be monitored from photographs.The unit was originally developed in 1950 by Laboratoire Dauphinois d'Hydraulique (now Sogreah) in Grenoble, France. They are no longer protected by a patent, and are widely used all over the world, produced by many contractors.The tetrapod inspired many similar concrete structures for use in breakwaters, including the Modified Cube (U.S., 1959), the Stabit (U.K., 1961), the Akmon (Netherlands, 1962), the Dolos (South Africa, 1963), the Stabilopod (Romania, 1969), the Seabee (Australia, 1978), the Accropode (France, 1981), the Hollow Cube (Germany, 1991), the A-jack (U.S., 1998), and the Xbloc (Netherlands, 2001), among others. In Japan, the word tetrapod is often used as a generic name for wave-dissipating blocks including other types and shapes.Tetrapods and concrete have become a Japanese institution in modern times. Their manufacture and dispersal create jobs for Japanese citizens and contracts for construction companies. It is estimated that nearly 50 percent of Japan's 35,000 kilometer coastline has been covered or somehow altered by Tetrapods and other forms of concrete. Because of the proliferation of Tetrapods, tourists to the Hawaii-like island of Okinawa often find it difficult to find pristine beaches and unaltered shoreline, especially in the southern half of the island.".
- Tetrapod_(structure) thumbnail Wave_dissipating_blocks.jpg?width=300.
- Tetrapod_(structure) wikiPageExternalLink books?id=p_rwqGK9igEC&dq=tetrapod+concrete&source=gbs_navlinks_s.
- Tetrapod_(structure) wikiPageExternalLink 2481.
- Tetrapod_(structure) wikiPageExternalLink fl20070722x2.html.
- Tetrapod_(structure) wikiPageID "8701191".
- Tetrapod_(structure) wikiPageLength "4496".
- Tetrapod_(structure) wikiPageOutDegree "28".
- Tetrapod_(structure) wikiPageRevisionID "666209455".
- Tetrapod_(structure) wikiPageWikiLink A-jack.
- Tetrapod_(structure) wikiPageWikiLink Accropode.
- Tetrapod_(structure) wikiPageWikiLink Akmon.
- Tetrapod_(structure) wikiPageWikiLink Artificial_reef.
- Tetrapod_(structure) wikiPageWikiLink Breakwater_(structure).
- Tetrapod_(structure) wikiPageWikiLink Category:Coastal_engineering.
- Tetrapod_(structure) wikiPageWikiLink Category:Marine_revetments.
- Tetrapod_(structure) wikiPageWikiLink Coastal_engineering.
- Tetrapod_(structure) wikiPageWikiLink Coastal_erosion.
- Tetrapod_(structure) wikiPageWikiLink Coastal_management.
- Tetrapod_(structure) wikiPageWikiLink Concrete.
- Tetrapod_(structure) wikiPageWikiLink Dolos.
- Tetrapod_(structure) wikiPageWikiLink France.
- Tetrapod_(structure) wikiPageWikiLink Grenoble.
- Tetrapod_(structure) wikiPageWikiLink Hollow_Cube.
- Tetrapod_(structure) wikiPageWikiLink KOLOS.
- Tetrapod_(structure) wikiPageWikiLink Modified_Cube.
- Tetrapod_(structure) wikiPageWikiLink Ocean_surface_wave.
- Tetrapod_(structure) wikiPageWikiLink Seawall.
- Tetrapod_(structure) wikiPageWikiLink Stabit.
- Tetrapod_(structure) wikiPageWikiLink Wind_wave.
- Tetrapod_(structure) wikiPageWikiLink Xbloc.
- Tetrapod_(structure) wikiPageWikiLink File:MumbaiCaltroplikeSeashoreDefence.JPG.
- Tetrapod_(structure) wikiPageWikiLink File:Ventnor_sea_defences.jpg.
- Tetrapod_(structure) wikiPageWikiLink File:Wave_dissipating_blocks.jpg.
- Tetrapod_(structure) wikiPageWikiLinkText "Tetrapod (structure)".
- Tetrapod_(structure) wikiPageWikiLinkText "Tetrapod".
- Tetrapod_(structure) wikiPageWikiLinkText "Tetrapods".
- Tetrapod_(structure) wikiPageWikiLinkText "concrete tetrapods".
- Tetrapod_(structure) wikiPageWikiLinkText "tetrapod columns".
- Tetrapod_(structure) wikiPageWikiLinkText "tetrapod".
- Tetrapod_(structure) wikiPageWikiLinkText "tetrapods".
- Tetrapod_(structure) hasPhotoCollection Tetrapod_(structure).
- Tetrapod_(structure) wikiPageUsesTemplate Template:About.
- Tetrapod_(structure) wikiPageUsesTemplate Template:Cite_book.
- Tetrapod_(structure) wikiPageUsesTemplate Template:Cite_web.
- Tetrapod_(structure) wikiPageUsesTemplate Template:Coastal_management.
- Tetrapod_(structure) wikiPageUsesTemplate Template:Commons_category.
- Tetrapod_(structure) wikiPageUsesTemplate Template:Refimprove.
- Tetrapod_(structure) wikiPageUsesTemplate Template:Reflist.
- Tetrapod_(structure) subject Category:Coastal_engineering.
- Tetrapod_(structure) subject Category:Marine_revetments.
- Tetrapod_(structure) hypernym Structure.
- Tetrapod_(structure) type Building.
- Tetrapod_(structure) comment "In coastal engineering, a tetrapod is a tetrahedral concrete structure used as armour unit on breakwaters.".
- Tetrapod_(structure) label "Tetrapod (structure)".
- Tetrapod_(structure) sameAs Tetràpode_(estructura).
- Tetrapod_(structure) sameAs Tetrapode.
- Tetrapod_(structure) sameAs Tetrapode_(Stein).
- Tetrapod_(structure) sameAs Tetrápodo_(estructura).
- Tetrapod_(structure) sameAs Tétrapode_(structure).
- Tetrapod_(structure) sameAs Tetrápodo_(estrutura).
- Tetrapod_(structure) sameAs 消波ブロック.
- Tetrapod_(structure) sameAs 테트라포드.
- Tetrapod_(structure) sameAs Tetrapod_(betongkonstruksjon).
- Tetrapod_(structure) sameAs m.027fgyy.
- Tetrapod_(structure) sameAs Тетрапод_(конструкція).
- Tetrapod_(structure) sameAs Q679780.
- Tetrapod_(structure) sameAs Q679780.
- Tetrapod_(structure) sameAs 消波塊.
- Tetrapod_(structure) wasDerivedFrom Tetrapod_(structure)?oldid=666209455.
- Tetrapod_(structure) depiction Wave_dissipating_blocks.jpg.
- Tetrapod_(structure) isPrimaryTopicOf Tetrapod_(structure).