TERMIUM Plus®
From: Translation Bureau
On social media
Consult the Government of Canada’s terminology data bank.
ROOF THRUST [6 records]
Record 1 - internal organization data 2016-02-26
Record 1, English
Record 1, Subject field(s)
- Mining Equipment and Tools
Record 1, Main entry term, English
- wedge-and-sleeve bolt
1, record 1, English, wedge%2Dand%2Dsleeve%20bolt
correct
Record 1, Abbreviations, English
Record 1, Synonyms, English
- expansion bolt 2, record 1, English, expansion%20bolt
correct
- expansion-sleeve bolt 3, record 1, English, expansion%2Dsleeve%20bolt
Record 1, Textual support, English
Record number: 1, Textual support number: 1 DEF
A bolt designed for use in roof bolting. It consists of a 3/4 in. diameter rod, at one end of which is a cold-rolled threaded portion, the other end being shaped to form a solid wedge forged integrally with the bolt. Over this wedge is fitted a loose split sleeve of 1-1/2 in. external diameter. The anchorage is provided by the bolt being placed in the hole and the bolt is pulled downwards while the sleeve is held by the thrust tube. Split by the wedge head of the bolt, the sleeve expands until it grips the sides of the hole. 1, record 1, English, - wedge%2Dand%2Dsleeve%20bolt
Record 1, Key term(s)
- expansion-shell bolt
- wedge and sleeve bolt
- expansion sleeve bolt
- expansion shell bolt
Record 1, French
Record 1, Domaine(s)
- Outillage et équipement (Exploitation minière)
Record 1, Main entry term, French
- boulon à coquille d'expansion
1, record 1, French, boulon%20%C3%A0%20coquille%20d%27expansion
correct, masculine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
- boulon à expansion 2, record 1, French, boulon%20%C3%A0%20expansion
correct, masculine noun
- boulon à coquille 2, record 1, French, boulon%20%C3%A0%20coquille
correct, masculine noun
- boulon expansible 3, record 1, French, boulon%20expansible
masculine noun
Record 1, Textual support, French
Record number: 1, Textual support number: 1 CONT
Boulons à coquilles d'expansion. Ils sont ainsi constitués [...] : 1) une tige de 17 à 22 mm, filetée à une extrémité ou aux deux extrémités; 2) sur cette tige, une noix pyramidale, vissée ou forgée; 3) autour de cette noix, une coquille en plusieurs éléments, cylindrique extérieurement, pyramidale intérieurement. L'ancrage [...] se fait en boulonnant l'extrémité de la tige, côté galerie, ce qui l'abaisse de quelques cm; la noix baisse avec elle et la coquille s'ouvre et se serre de plus en plus contre les parois. 2, record 1, French, - boulon%20%C3%A0%20coquille%20d%27expansion
Record 1, Spanish
Record 1, Textual support, Spanish
Record 2 - internal organization data 2011-02-21
Record 2, English
Record 2, Subject field(s)
- Tectonics
Record 2, Main entry term, English
- roof thrust
1, record 2, English, roof%20thrust
correct
Record 2, Abbreviations, English
Record 2, Synonyms, English
- uppermost thrust 2, record 2, English, uppermost%20thrust
correct, less frequent
Record 2, Textual support, English
Record number: 2, Textual support number: 1 CONT
In a thrust environment, the structural association is : two flat segments(called the floor and roof thrusts), connected by several parallel ramp segments. The rock masses bounded by these faults are called horses, and the entire structural association is a duplex. 3, record 2, English, - roof%20thrust
Record number: 2, Textual support number: 2 CONT
duplex fault zone : A structural complex consisting of a roof thrust at the top and a floor thrust at the base, within which a suite of more steeply dipping imbricate thrust faults thicken and shorten the intervening panel of rock... 4, record 2, English, - roof%20thrust
Record number: 2, Textual support number: 1 OBS
As opposed to "sole thrust" or "floor thrust." 5, record 2, English, - roof%20thrust
Record number: 2, Textual support number: 2 OBS
roof thrust : term used at Natural Resources Canada-Earth Sciences Sector. 5, record 2, English, - roof%20thrust
Record 2, French
Record 2, Domaine(s)
- Tectonique
Record 2, Main entry term, French
- chevauchement sommital
1, record 2, French, chevauchement%20sommital
correct, masculine noun
Record 2, Abbreviations, French
Record 2, Synonyms, French
- chevauchement supérieur 2, record 2, French, chevauchement%20sup%C3%A9rieur
correct, masculine noun
- chevauchement de toit 3, record 2, French, chevauchement%20de%20toit
correct, masculine noun
- flanc supérieur d'un chevauchement 4, record 2, French, flanc%20sup%C3%A9rieur%20d%27un%20chevauchement
masculine noun
Record 2, Textual support, French
Record number: 2, Textual support number: 1 CONT
Un duplex chevauchant est une structure limitée par un chevauchement de base («floor thrust») et un chevauchement de toit («roof thrust») [...] Ces deux chevauchements majeurs, qui correspondent généralement à des décollements, sont réunis par plusieurs rampes qui délimitent des volumes de roche indépendants, constitutifs du duplex et nommés «horses» [...] 3, record 2, French, - chevauchement%20sommital
Record number: 2, Textual support number: 2 CONT
Le décollement du chevauchement inférieur du duplex de Dogtooth semble emprunter la couche de roches incompétentes, à l'intérieur de ou sous la couche basale du Supergroupe de Windermere d'âge hadrynien. Le chevauchement supérieur suit apparemment les roches argileuses incluses dans la Formation de Chancellor d'âge cambrien moyen. 2, record 2, French, - chevauchement%20sommital
Record 2, Spanish
Record 2, Textual support, Spanish
Record 3 - internal organization data 2005-05-16
Record 3, English
Record 3, Subject field(s)
- Architectural Elements
Record 3, Main entry term, English
- flying buttress
1, record 3, English, flying%20buttress
correct
Record 3, Abbreviations, English
Record 3, Synonyms, English
- arch buttress 2, record 3, English, arch%20buttress
correct
- arched buttress 3, record 3, English, arched%20buttress
correct
- arc-boutant 4, record 3, English, arc%2Dboutant
correct
Record 3, Textual support, English
Record number: 3, Textual support number: 1 DEF
A masonry structure typically consisting of a straight inclined bar carried on an arch and a solid pier or buttress against which it abuts that is used to take up the thrust of a roof or vault which cannot be supported by ordinary buttress. 5, record 3, English, - flying%20buttress
Record number: 3, Textual support number: 1 CONT
The upper flying buttress properly designed, therefore had a vital structural function in stabilizing the upper clerestory and the high timber roofs of buildings such as the cathedral of Amiens. 6, record 3, English, - flying%20buttress
Record 3, French
Record 3, Domaine(s)
- Éléments d'architecture
Record 3, Main entry term, French
- arc-boutant
1, record 3, French, arc%2Dboutant
correct, see observation, masculine noun
Record 3, Abbreviations, French
Record 3, Synonyms, French
- arcboutant 2, record 3, French, arcboutant
correct, see observation, masculine noun
Record 3, Textual support, French
Record number: 3, Textual support number: 1 DEF
Organe de contrebutement formé d'un arc surmonté d'un petit mur aux assises horizontales et au faîte généralement rampant neutralisant par sa propre poussée une partie des poussées localisées d'un voûte ou d'un autre arc. [Vocabulaire de l'architecture] 3, record 3, French, - arc%2Dboutant
Record number: 3, Textual support number: 1 CONT
La croisée d'ogives et l'arc-boutant sont des perfectionnements inventés par les architectes français pour localiser les charges et désencombrer les édifices. 4, record 3, French, - arc%2Dboutant
Record number: 3, Textual support number: 1 OBS
Pluriel : arcs-boutants. 2, record 3, French, - arc%2Dboutant
Record number: 3, Textual support number: 2 OBS
Élément de construction en maçonnerie, caractéristique des églises gothiques, constitué par un arc rampant extérieur aux édifices. Il a pour fonction de s'opposer à la poussée latérale des parties hautes d'une voûte; il prend lui-même appui sur un contrefort, ou culée, souvent surmonté d'un pinacle. 5, record 3, French, - arc%2Dboutant
Record number: 3, Textual support number: 3 OBS
arcboutant : Cette graphie, puisée des Rectifications de l'orthographe recommandées par le Conseil supérieur de la langue française, est attestée dans le Petit Robert (2004). 6, record 3, French, - arc%2Dboutant
Record 3, Spanish
Record 3, Campo(s) temático(s)
- Elementos arquitectónicos
Record 3, Main entry term, Spanish
- arbotante
1, record 3, Spanish, arbotante
masculine noun
Record 3, Abbreviations, Spanish
Record 3, Synonyms, Spanish
Record 3, Textual support, Spanish
Record 4 - internal organization data 1999-05-11
Record 4, English
Record 4, Subject field(s)
- Mining Equipment and Tools
Record 4, Main entry term, English
- Samson stripper
1, record 4, English, Samson%20stripper
correct
Record 4, Abbreviations, English
Record 4, Synonyms, English
Record 4, Textual support, English
Record number: 4, Textual support number: 1 DEF
A longwall cutter-loader of the plough type, with two cutting blades, one at each end, operated by a hydraulic cylinder which can give a powerful thrust(about 42 tons) to the blades and cause them to bite into the coal. While this thrust is being exerted, the machine is anchored by means of a vertical jack which engages the roof and floor. The jack is built on sliding bars and the machine is moved by sliding the jack along the bars to the next position for anchoring the machine. It travels alongside the conveyor but is not connected to it. A loading ramp guides the cut coal on to the conveyor. The machine is employed in seams from 4 to 5 ft thick with a strong roof and floor. 2, record 4, English, - Samson%20stripper
Record 4, French
Record 4, Domaine(s)
- Outillage et équipement (Exploitation minière)
Record 4, Main entry term, French
- rabot automoteur Samson
1, record 4, French, rabot%20automoteur%20Samson
correct, masculine noun
Record 4, Abbreviations, French
Record 4, Synonyms, French
Record 4, Textual support, French
Record number: 4, Textual support number: 1 OBS
La firme Mavor et Coulson construit une machine appelée Samson stripper qui abat le charbon par arrachement d'un copeau épais (environ 60 cm) chargé directement dans le convoyeur de taille. La machine est automotrice. Elle comprend un moteur qui entraîne une pompe à huile agissant sur une unité de propulsion. Celle-ci est formée d'un étançon vertical à double effet qui coince la machine entre mur et toit et d'un cylindre horizontal muni d'un piston également à double effet. Le piston horizontal porte, à chacune de ses extrémités, un coin d'attaque qui peut exercer sur le massif une pression de 42 t. La réaction est supportée par l'étançon vertical. La tête coupante peut ainsi pénétrer de 80 cm dans le massif. On desserre ensuite l'étançon de sorte que le bâti de la machine repose de tout son poids sur le mur et que l'unité de propulsion devient libre de glisser de 80 cm afin de se préparer à effectuer un nouveau cycle d'avancement. 1, record 4, French, - rabot%20automoteur%20Samson
Record 4, Spanish
Record 4, Textual support, Spanish
Record 5 - internal organization data 1999-05-03
Record 5, English
Record 5, Subject field(s)
- Tectonics
Record 5, Main entry term, English
- duplex fault zone
1, record 5, English, duplex%20fault%20zone
correct
Record 5, Abbreviations, English
Record 5, Synonyms, English
Record 5, Textual support, English
Record number: 5, Textual support number: 1 DEF
A structural complex consisting of a roof thrust at the top and a floor thrust at the base, within which a suite of more steeply dipping imbricate thrust faults thicken and shorten the intervening panel of rock. 1, record 5, English, - duplex%20fault%20zone
Record 5, French
Record 5, Domaine(s)
- Tectonique
Record 5, Main entry term, French
- duplex
1, record 5, French, duplex
correct, masculine noun
Record 5, Abbreviations, French
Record 5, Synonyms, French
Record 5, Textual support, French
Record number: 5, Textual support number: 1 DEF
Ensemble d'écailles tectoniques imbriquées, compris entre deux contacts anormaux majeurs de décollement. On peut dire qu'il s'agit de duplicatures intercutanées. 1, record 5, French, - duplex
Record 5, Spanish
Record 5, Textual support, Spanish
Record 6 - internal organization data 1998-03-09
Record 6, English
Record 6, Subject field(s)
- Structural Framework
Record 6, Main entry term, English
- ring beam
1, record 6, English, ring%20beam
correct
Record 6, Abbreviations, English
Record 6, Synonyms, English
Record 6, Textual support, English
Record number: 6, Textual support number: 1 DEF
Continuous beam around the perimeter of a domed roof structure that carries the vertical loads to the supporting columns or wall and that balances the lateral thrust by tensile force in the beam. 1, record 6, English, - ring%20beam
Record 6, French
Record 6, Domaine(s)
- Charpentes
Record 6, Main entry term, French
- poutre annulaire
1, record 6, French, poutre%20annulaire
feminine noun
Record 6, Abbreviations, French
Record 6, Synonyms, French
Record 6, Textual support, French
Record 6, Key term(s)
- poutre filante
Record 6, Spanish
Record 6, Textual support, Spanish
Copyright notice for the TERMIUM Plus® data bank
© Public Services and Procurement Canada, 2026
TERMIUM Plus®, the Government of Canada's terminology and linguistic data bank
A product of the Translation Bureau
Features
GCtranslate (available on the Government of Canada network only)
Use this artificial intelligence prototype to translate Government of Canada content up to and including Protected B. Available to employees of selected departments and agencies only.
Writing tools
The Language Portal’s writing tools have a new look! Easy to consult, they give you access to a wealth of information that will help you write better in English and French.
Glossaries and vocabularies
Access Translation Bureau glossaries and vocabularies.
- Date Modified:


