TERMIUM Plus®

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Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 2006-08-10

English

Subject field(s)
  • Mine Passages
DEF

The main working gallery or entry of a coal seam which dips at an angle and along which mine cars are hauled...

CONT

Three methods, drift, slope, and shaft (or various combinations thereof), are used to gain access to coal located too deep underground for surface mining. ... A slope is an inclined opening driven to work a seam with a downward inclination, or to reach from the surface to a seam or between seams.

OBS

When not open at one end to the surface, it is known as an inside slope.

French

Domaine(s)
  • Galeries et soles (Mines)
DEF

[...] galerie [en pente] débouchant au jour.

CONT

Lorsque le gîte est à profondeur modérée, on l'atteint à partir de la surface par une galerie inclinée, ou «fendue», dont la pente admissible est limitée à environ 18° [...]

OBS

Lorsque la pente est forte, c'est un puits incliné.

Spanish

Save record 1

Record 2 2003-08-25

English

Subject field(s)
  • Geological and Other Scientific Names
OBS

The bulk of the chromite production of the Bushveld Complex comes from two layers in particular : the Steelpoort seam(also called the LG6, Magazine, or Main seam)...

French

Domaine(s)
  • Noms géologiques ou scientifiques
OBS

La plus grande partie de la production de chromite du Complexe du Bushveld provient de deux lits en particulier : la couche Steelpoort (appelée également couche LG6, couche Magazine ou couche Main) [...]

OBS

Bushveld, Couche de Steelpoort [...]

Spanish

Save record 2

Record 3 1999-05-11

English

Subject field(s)
  • Mining Operations
CONT

Three main systems of methane drainage have been developed :(1) the cross-measure borehole method which consists of boring holes from 2¼ to 3¼ inches in diameter and 150 to 300 feet in length, into the strata above or below the seam, generally close to the working face. This method has the advantage of being suited to a wide variety of conditions and does not require another seam within reasonable distance above or below the seam to be drained, or the use of solid stowing;(2) the superjacent roadway system in which boreholes are drilled from a roadway situated above the seam being worked, the drainage of the methane then taking place from this roadway; and(3) the pack cavity system in which corridors are left and supported in the goaf as the face advances, and from these firedamp is drawn off.

Key term(s)
  • fire damp drainage

French

Domaine(s)
  • Exploitation minière
CONT

Le captage du grisou est réalisé en creusant de longs trous, soit à partir de la surface, soit à partir des galeries de reconnaissance du gisement, en direction des couches de charbon. Le gaz ainsi récupéré, principalement du méthane, est utilisé comme combustible; en outre, l'exploitation ultérieure du gisement est facilitée par la réduction des dégagements du grisou dans les galeries et chantiers.

Spanish

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Record 4 1989-03-14

English

Subject field(s)
  • Mining Equipment and Tools
CONT

Joy presently offer both chain ripper miners and the rotary drum head-type miners introduced in 1968. However, the rotary drum head machines are proving to be the more popular and look to be superseding the chain ripper models produced by Joy. In operation the chain ripper machine works as follows. The machine is trammed forward into position then, while the main chassis of the machine remains stationary, the cutting head moves forward, sumping into the coal at the bottom of the face. The rotation of the chains carries the broken coal back over the head and deposits it on to the chain conveyor which then moves the coal to the rear end of the machine. When the sumping operation is complete, the head travels upwards towards the top of the seam, breaking out the coal as it moves. As soon as the cycle is complete the head is withdrawn and swung to the side in order to make another cut.

OBS

trammed: Technical term used for the driving backward and forward of such machinery.

French

Domaine(s)
  • Outillage et équipement (Exploitation minière)
CONT

Abatteuses-chargeuses de chambres et piliers. Ces machines conçues et réalisées aux Etats-Unis sont sorties du stade prototype vers 1950. En 10 ans, elles ont conquis plus de 20 % du charbon américain et leur champ d'activité s'étend. Elles sont soit du type à chaîne de havage découpant le charbon par saignées parallèles, soit du type rotatif détruisant le massif à la manière de perforatrices à taillant de très gros diamètre. La première et la plus connue est le continuous miner de Joy (...)

Spanish

Save record 4

Record 5 1989-03-14

English

Subject field(s)
  • Mining Equipment and Tools
CONT

Joy presently offer both chain ripper miners and the rotary drum head-type miners introduced in 1968. However, the rotary drum head machines are proving to be the more popular and look to be superseding the chain ripper models produced by Joy. In operation the chain ripper machine works as follows. The machine is trammed forward into position then, while the main chassis of the machine remains stationary, the cutting head moves forward, sumping into the coal at the bottom of the face. The rotation of the chains carries the broken coal back over the head and deposits it on to the chain conveyor which then moves the coal to the rear end of the machine. When the sumping operation is complete, the head travels upwards towards the top of the seam, breaking out the coal as it moves. As soon as the cycle is complete the head is withdrawn and swung to the side in order to make another cut.

OBS

trammed: Technical term used for the driving backward and forward of such machinery.

French

Domaine(s)
  • Outillage et équipement (Exploitation minière)
CONT

Abatteuses-chargeuses de chambres et piliers. Ces machines conçues et réalisées aux États-Unis sont sorties du stade prototype vers 1950. En 10 ans, elles ont conquis plus de 20% du charbon américain et leur champ d'activité s'étend. Elles sont soit du type à chaîne de havage découpant le charbon par saignées parallèles, soit du type rotatif détruisant le massif à la manière de perforatrices à taillant de très gros diamètre. La première et la plus connue est le continuous miner de Foy [...]

Spanish

Save record 5

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