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MINE RELEASE [9 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)
  • Mining Dangers and Mine Safety
  • Underground Mining
DEF

The sudden failure of walls or pillars in a mine caused by the weight or pressure of the surrounding rocks, and accompanied by a violent release of energy.

CONT

Rock bursts. In areas of very deep mining, as additional weight is supported by the pillars on the coal face, stresses may so build up that the yield point is reached. If the coal pillars, the roof, or the floor are able to yield gradually, the effects of the stresses are relieved by floor heaving, or by pillar or roof failure. Where the coal or the associated rocks are particularly strong and depths are much above average, these stresses may be relieved by rock bursts, which are relatively violent outbursts of the coal into the rooms and entries. Frequently, a large volume of gas (usually methane) is suddenly released during a rock burst in a coal mine.

OBS

for "coal burst" : Rock bursts and "coal bursts" in coal mines are generally designated by the term "bumps" or "bounces". A large proportion of these "bumps" or "bounces" are actually "coal bursts" due to fracturing of pillars and remnants and need not involve any fracturing of roof or floor rock.

OBS

for "air blast" : In former years rock bursts were sometimes referred to as "air blasts". This name originated from the fact that large quantities of rock loosened by some of the larger rock bursts displaced quantities of air, with the result that a blast of air passed through the mine workings.

French

Domaine(s)
  • Exploitation minière (dangers et sécurité)
  • Exploitation minière souterraine
DEF

[...] dislocation des piliers de charbon soutenant le toit, avec projections de charbon et parfois soulèvement du mur, plus tendre, jusqu'à venir toucher le toit.

OBS

[Le coup de toit peut] mettre en danger l'outillage et le personnel.

Spanish

Campo(s) temático(s)
  • Explotación minera (peligros y seguridad)
  • Explotación minera subterránea
Save record 1

Record 2 2011-08-18

English

Subject field(s)
  • Environmental Studies and Analyses
  • Hydrology and Hydrography
CONT

For example, 40Ar/36Ar ratios at depth in water samples from the Con mine are up to 10 times greater than the atmospheric ratio due to the time-dependent decay of naturally present 40K in minerals and the subsequent release of its daughter isotope(40Ar) to the groundwater.

French

Domaine(s)
  • Études et analyses environnementales
  • Hydrologie et hydrographie
CONT

Par exemple, à la profondeur où l'on a prélevé les échantillons d'eau dans la mine Con, les rapports 40Ar/36Ar sont dix fois plus élevés que le rapport de l'atmosphère.

Spanish

Save record 2

Record 3 2004-08-04

English

Subject field(s)
  • Wastewater Treatment
CONT

Operational wastewater sources include CT release water, mine drainage, basal aquifer water, coker and upgrader waste waters, sewage treatment system wastewaters and cooling waters.

French

Domaine(s)
  • Traitement des eaux usées
CONT

Les eaux usées proviennent de plusieurs sources dans une exploitation de sables bitumineux. [...] Les eaux d'exploitation comprennent les eaux libérées par les RC [résidus composites], les eaux de drainage de l'exploitation, les eaux de l'aquifère de fond, les eaux usées de cokéfaction et de traitement, les eaux usées résiduaires des systèmes d'épuration des eaux-vannes et les eaux de refroidissement.

OBS

eaux d'exploitation : terme inusité au singulier.

Key term(s)
  • eau d'exploitation

Spanish

Save record 3

Record 4 - external organization data 2004-01-30

English

Subject field(s)
  • Scientific Measurements and Analyses
  • Atmospheric Physics
  • Compartment - Canadian Nuclear Safety Commission
CONT

For example, 40Ar/36Ar ratios at depth in water samples from the Con mine are up to 10 times greater than the atmospheric ratio due to the time-dependent decay of naturally present 40K in minerals and the subsequent release of its daughter isotope(40Ar) to the groundwater.

French

Domaine(s)
  • Mesures et analyse (Sciences)
  • Physique de l'atmosphère
  • Tiroir - Commission canadienne de sûreté nucléaire
CONT

Par exemple, à la profondeur où l'on a prélevé les échantillons d'eau dans la mine Con, les rapports 40Ar/36Ar sont dix fois plus élevés que le rapport de l'atmosphère.

Spanish

Save record 4

Record 5 - external organization data 2004-01-30

English

Subject field(s)
  • Atomic Physics
  • Compartment - Canadian Nuclear Safety Commission
CONT

For example, 40Ar/36Ar ratios at depth in water samples from the Con mine are up to 10 times greater than the atmospheric ratio due to the time-dependent decay of naturally present 40K in minerals and the subsequent release of its daughter isotope(40Ar) to the groundwater.

French

Domaine(s)
  • Physique atomique
  • Tiroir - Commission canadienne de sûreté nucléaire
CONT

Cette concentration provient de la désintégration radioactive de l'isotope 40K dans les minéraux et de la libération subséquente du nucléide de filiation, 40Ar, dans l'eau souterraine.

Spanish

Save record 5

Record 6 2002-03-06

English

Subject field(s)
  • Mine Warfare
  • Minesweeping and Minehunting
  • Demolition (Military)
DEF

In naval mine warfare, a moored mine lying on the sea-bed connected to its sinker from which it has failed to release owing to defective mechanism.

OBS

married failure: term and definition standardized by NATO.

French

Domaine(s)
  • Guerre des mines
  • Dragage et chasse aux mines
  • Destruction (Militaire)
DEF

En guerre des mines sur mer, mine à orin reposant au fond et restée reliée à son crapaud dont elle ne s'est pas dégagée par suite d'un défaut de fonctionnement.

OBS

raté de prise d'immersion : terme et définition normalisés par l'OTAN.

Spanish

Campo(s) temático(s)
  • Guerra de minas
  • Dragado y detección de minas
  • Destrucción (Militar)
DEF

En guerra de minas naval, mina de orinque que permanece amarrada a su anclaje; fondeada debido a un fallo del sistema de liberación a causa de un mecanismo defectuoso.

Save record 6

Record 7 - external organization data 1994-11-10

English

Subject field(s)
  • Mining Operations
  • Compartment - Canadian Nuclear Safety Commission
CONT

Minewater consists primarily of surface water or groundwater which has collected in mine workings. This may include drill water, drainage from backfill operations and infiltration of surface water or groundwater. Depending on the level of contamination, this water may be unacceptable for release to the environment without treatment.

French

Domaine(s)
  • Exploitation minière
  • Tiroir - Commission canadienne de sûreté nucléaire
CONT

Les eaux de mine se composent principalement d'eaux superficielles ou souterraines qui sont accumulées dans les galeries de mine. Ces eaux peuvent provenir des eaux de forage, du drainage consécutif au remblayage et de l'infiltration d'eaux superficielles ou souterraines. Suivant le degré de contamination, ces eaux devraient peut-être subir un traitement avant d'être rejetées dans l'environnement.

Spanish

Save record 7

Record 8 1994-02-17

English

Subject field(s)
  • Minesweeping and Minehunting
OBS

mine release : Terminology officially approved by the Naval Terminology Standardization Committee.

French

Domaine(s)
  • Dragage et chasse aux mines
OBS

largage de mine : Terminologie adoptée par le Comité de normalisation de la terminologie navale.

Spanish

Save record 8

Record 9 1986-11-21

English

Subject field(s)
  • Mining Operations
CONT

In eastern Canadian underground coal mines :.... Hydrofracturing techniques were used to release stress in areas of the mine which are prone to outbursts.

French

Domaine(s)
  • Exploitation minière
CONT

Un certain nombre d'études ont été menées dans les mines de charbon souterraines de l'Est canadien : (...) Des techniques d'hydrofracturation ont été utilisées pour diminuer la tension dans les zones de la mine sujettes aux coups de toit.

Spanish

Save record 9

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