TERMIUM Plus®

The Government of Canada’s terminology and linguistic data bank.

CAVING SYSTEM [2 records]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 2016-02-26

English

Subject field(s)
  • Extraction Procedures - Various (Mining)
  • Underground Mining
DEF

In coal mining, the practice of encouraging the roof over the waste to collapse freely so that it fills the waste area and thereby avoiding the need to pack.

OBS

In metal mining, caving implies the dropping of the overburden as part of the system of mining.

French

Domaine(s)
  • Procédés d'extraction divers (Exploit. minière)
  • Exploitation minière souterraine
DEF

Éboulement volontaire du toit dans l'arrière-taille ou dans un chantier dont l'exploitation est terminée, pour en combler le vide.

Spanish

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Record 2 1987-07-29

English

Subject field(s)
  • Oil Drilling
CONT

A system of oil-well drilling differing from the American cable system, in that wooden rods screwed together are used instead of a rope. The Canadian pole is useful all-round prospecting rig, and it is particularly suitable for regions where excessive caving makes it necessary to have some positive method of rotating the bit.

French

Domaine(s)
  • Forage des puits de pétrole
CONT

[...] les procédés employés pour la réalisation des forages profonds (500 à 2000 m) [...] sont les procédés : - pennsylvanien (forage au câble), - canadien (forage aux tiges pleines). [...] la perforation se fait au trépan [...] fixé à des tiges pleines dans le canadien.

CONT

Avec le procédé «canadien», les chocs du trépan au fond du trou sont isolés par une coulisse qui lâche l'outil en position haute et le rattrape après sa chute. Ces chocs, nuisibles à la bonne conservation du matériel, se produisent ainsi uniquement sur l'outil spécialement conçu à cet effet.

Spanish

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