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ANCRAGE GRAVITE [2 records]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 2015-04-08

English

Subject field(s)
  • Oil Drilling
DEF

An offshore drilling and production platform made of concrete and of such tremendous weight that it is held securely on the ocean bottom without the need for piling or anchors.

CONT

gravity structure: A family of deep water structures usually built of reinforced concrete, but sometimes of steel ... These structures rely on gravity to keep them stable on the sea bed and unlike piled platforms are relatively mobile and need no piling to hold them in place. ... A typical gravity structure consists of a cellular concrete or steel base for storage or ballast, a number of vertical columns which support a steel deck and give access to the riser, and deck accommodation ... all types are towed to their final destination and settled upright on the sea by controlled ballasting.

French

Domaine(s)
  • Forage des puits de pétrole
DEF

Structure dont la stabilité est assurée par gravité grâce aux dimensions et au poids de l'embase, généralement en béton, et ne nécessitant pas d’ancrage sur le fond de la mer.

CONT

Un autre type de plateforme [...] commence à être utilisé : il s’agit de «structures-poids» en béton, à fondation continue sur radier (au lieu de piles) et dont la stabilité est uniquement due au poids propre (et non à l’encastrement dans le sol) [...] Pour la mise en place, la plateforme est remorquée à l’aplomb du gisement, puis ballastée jusqu’à obtenir un appui suffisant sur le fond [...]

OBS

Pluriel : des plateformes, des plates-formes.

OBS

plateforme (sing.) ; plateformes (pl.) : Ces graphies, puisées des Rectifications de l’orthographe recommandées par le Conseil supérieur de la langue française, sont attestées dans le Petit Robert (2004).

Spanish

Campo(s) temático(s)
  • Perforación de pozos petrolíferos
Save record 1

Record 2 1988-02-23

English

Subject field(s)
  • Tunnels, Overpasses and Bridges
CONT

The anchorages of a cantilever bridge present the designer with little difficulty .... There are two basic ways of providing such anchorages .... Where the bedrock is firm and sufficiently near the surface the supporting cradle for the cables can be anchored by means of a concrete plug let into a shaft cut in the rock. Where the rock is too weak or too deep the alternative is a gravity anchorage - a solid block of concrete that resists the tension in the cables by its immense weight alone.

French

Domaine(s)
  • Tunnels, viaducs et ponts

Spanish

Save record 2

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