TERMIUM Plus®

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

HYDRAULIC CHOCK [1 record]

Record 1 1999-05-11

English

Subject field(s)
  • Underground Mining
  • Mining Equipment and Tools
DEF

A steel face support structure consisting of one up to four hydraulic legs or uprights.

OBS

The four-leg chock is mounted in a strong fabricated steel frame with a large head and base plate. ... It is controlled by a central valve system which operates either on the four legs simultaneously or on the front and rear pairs separately.

PHR

Permanent, temporary chock.

French

Domaine(s)
  • Exploitation minière souterraine
  • Outillage et équipement (Exploitation minière)
OBS

Piles monoblocs [...] La pile [...] comporte 4 étançons montés en carré sur un socle robuste [...], portant 4 pots tubulaires et 4 colliers de caoutchouc qui maintiennent les étançons normalement au toit [...]. À la base du socle, est fixé un vérin horizontal à double effet. Celui-ci sert à ravancer le convoyeur, quand la pile est serrée, puis à ravancer la pile, en utilisant le convoyeur comme point fixe. Le sommet de chaque pile est formé d'un chapiteau avec couloirs latéraux [...] servant de support à deux rallonges en caisson [...], qui supportent le toit depuis les foudroyages jusqu'au front.

PHR

Pile abandonnée, déplaçable, fixe, mobile.

Spanish

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