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MINE CASE [16 records]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 2019-04-26

English

Subject field(s)
  • Arms Control
  • Land Mines
  • Demolition (Military)
DEF

An internal or external device on a mine arranged to actuate the mine in case of outside disturbance.

Key term(s)
  • anti disturbance device

French

Domaine(s)
  • Contrôle des armements
  • Mines terrestres
  • Destruction (Militaire)
DEF

Dispositif interne ou externe placé sur une mine afin de la déclencher en cas de perturbation extérieure.

OBS

dispositif antiperturbation : terme et définition uniformisés par le Groupe de travail de terminologie du génie.

Key term(s)
  • dispositif anti-perturbation
  • dispositif anti-dérangement

Spanish

Save record 1

Record 2 2013-01-21

English

Subject field(s)
  • Naval Mines
DEF

A bottom or moored mine with a self-propelled warhead that will detach itself from the case or anchor and close on the target upon activation.

French

Domaine(s)
  • Mines marines
DEF

Mine de fond ou mine à orin munie d'une ogive autopropulsée qui se détache du boîtier ou de l'ancre pour se rapprocher de la cible au moment de l'activation.

Spanish

Save record 2

Record 3 2010-10-11

English

Subject field(s)
  • Petrography
DEF

An intrusive igneous rock that has an approximately equal proportion of orthoclase and plagioclase feldspars.

CONT

Frequently at the contacts of skarns and intrusions there is a completely gradational contact and this is the case at the Memé copper mine where a large block of Cretaceous limestone has been surrounded by quartz-monzonite.

OBS

quartz monzonite: term used at Natural Resources Canada - Earth Sciences Sector.

French

Domaine(s)
  • Pétrographie
DEF

Roche acide contenant orthose, plagioclase, quartz, hornblende et biotite.

CONT

[...] la minéralisation de nombreux porphyres cuprifères est liée à la densité de fracturation précoce des roches encaissantes, souvent des monzonites quartzifères.

OBS

Le terme d'«adamellite» peut être considéré comme synonyme de granite monzonitique.

OBS

monzonite quartzique : terme en usage à Ressources naturelles Canada - Secteur des sciences de la Terre.

Spanish

Save record 3

Record 4 2008-09-10

English

Subject field(s)
  • Tort Law (common law)
CONT

The modern doctrine of strict liability for the escape of dangerous substances had its genesis in 1866, in the leading case of Rylands v. Fletcher. The defendant millowners decided to construct a water reservoir on their land for the purpose of supplying water to their factory. On the chosen site there was a disused shaft of an abandoned mine, but owing to the negligence of the engineers, a firm of independent contractors who had been entrusted with the work, this fact was not discovered until the water broke into the staft and flooded the plaintiff's adjoining mine through communicating passages.

French

Domaine(s)
  • Droit des délits (common law)

Spanish

Save record 4

Record 5 2007-08-15

English

Subject field(s)
  • Naval Mines
  • Mine Warfare
DEF

In naval mine warfare, a device fitted to a buoyant mine which, on operation after a pre-set time, floods the mine case and causes it to sink to the bottom.

OBS

flooder: term and definition standardized by NATO.

French

Domaine(s)
  • Mines marines
  • Guerre des mines
DEF

En guerre des mines sur mer, dispositif équipant les mines à orin qui permet de noyer le flotteur et de le faire couler, après un certain délai réglé à l'avance.

OBS

dispositif de sabordage : terme et définition normalisés par l'OTAN.

Spanish

Campo(s) temático(s)
  • Minas marinas
  • Guerra de minas
DEF

En guerra naval de minas, dispositivo con que va equipada una mina de orinque que permite inundar a la mina y determinar que ésta se hunda.

Save record 5

Record 6 2005-04-05

English

Subject field(s)
  • Underground Mining
CONT

Paste backfill is defined as an engineered mixture of fine solid particles(with binder) and water, containing between 72% and 85% solids by weight. Particles in a paste mixture will not settle out of the mixture if allowed to remain stationary in a tank or in a pipeline. It can be placed in stopes with or without binder addition depending on the strength requirements for backfill. Improved pumping technology, environmental concerns and the need for a low cost/high strength fill in mines are driving mine operators to consider paste backfill as a tailings management and mine backfill alternative. The main advantages and disadvantages of a paste backfill system over a conventional hydraulic backfill plant are generally accepted as :... higher strengths can be achieved with an equivalent cement content; drainage of water and slimes from the fill are minimized, reducing the need for bulkhead construction and extensive drainage works. This feature also reduces maintenance on sumps and mine de-watering pumps; in some cases, unclassified tailings can be used to make paste rather than just the coarse fraction as is the case for hydraulic backfill; shorter stope cycle times can be achieved because an equivalent strength can be achieved in a shorter time with paste backfill; paste backfill systems achieve lower porosities than conventional fill thereby increasing the tonnage of material that can be disposed of underground; and, since paste backfill is deposited as a non-segregated mass of backfill(because cement particles are not displaced by the internal movements of the draining water), more predictable strength properties for the fill can be achieved.

CONT

Paste backfilling of mines. A number of mines are installing paste fill systems to replace the current sand fill method. The justification and economies of this conversion include: higher production levels (less wait for dewatering), increased grade of ore to the mill, decrease of stope ore left as pillars, improved haulage with the removal of excess moisture, increased filling rates, and a higher strength fill with less waiting time. The unique problems associated with paste fill applications range from extremely rapid system wear to paste separation and system blockage.

French

Domaine(s)
  • Exploitation minière souterraine
OBS

Remblayage à l'aide de pâtes minérales, remblayage où le matériau de remblai (aussi appelé «remblai» tout court) est constitué d'une pâte minérale. Propositions par inférence à partir des expressions «remblayage par terres d'apport» et «remblayage avec terres de lavoirs», relevées dans la justification reproduite ci-après.

OBS

Le remblayage consiste à remplir les vides créés par l'exploitation. Il a un rôle multiple : 1) Il sert de soutènement, les étais (métalliques en général) ne pouvant pas supporter tous les terrains sus-jacents. 2) Il améliore la ventilation. [...] Le remblayage peut se faire par terres d'apport prises sur place (terres de galeries ou terres de fausses voies) ou amenées de l'extérieur (remblayage pneumatique par exemple ou remblayage avec terres de lavoirs amenées du jour ou remblayage hydraulique) ou par foudroyage.

OBS

SNC-Lavalin est un chef de file des services à l'industrie minière, étant en mesure d'offrir toute la gamme des services à l'échelle mondiale : [...] Expertise : · Systèmes de remblayage (ce qui comprend la pâte).

CONT

Remblayage. «Rhéologie des pâtes minérales et son implication sur l'acheminement sous terre par pipeline», par Michael Li, Centre de technologie Noranda. Résumé. Le remblai en pâte est de plus en plus utilisé comme soutien pour les mines souterraines. Malgré cette tendance, l'ingénierie et la conception des systèmes de remblais en pâte sont grandement basées sur des méthodes empiriques plutôt que sur des principes scientifiques établis. Vu la faible compréhension de l'écoulement de la pâte minérale par plusieurs, il faut effectuer des essais empiriques lors de la mise en service et l'opération de nouveaux systèmes de remblais en pâte.

Spanish

Save record 6

Record 7 2002-04-12

English

Subject field(s)
  • Remote Sensing
DEF

A antenna polarization selection (transmit and receive) that maximizes the received power from a given class of scatterers.

OBS

These optimum polarization states will be related to different independent scattering mechanisms that lead to the locally best height estimation. In case of buried mine detection, it is expected to find two coherence maxima : the mine and the surface clutter(or air-ground interface). After generating the two interferograms corresponding to these optimum polarization states, one can extract the height difference between them. The resulting height difference map will exhibit some peaks at those positions where the mines are buried, whereas it will remain close to zero at those zones of the image where only a single natural surface scattering process can be found.

OBS

optimum polarization: term officially approved by the RADARSAT-2 Terminology Approval Group (RTAG).

French

Domaine(s)
  • Télédétection
DEF

Sélection de polarisations d'antenne (émission et en réception) servant à maximiser la puissance reçue d'une classe donnée de diffuseurs.

CONT

Une polarisation optimale permet d'améliorer la force du signal pour les mesures par images de particules.

OBS

polarisation optimale : terme uniformisé par le Groupe de travail de la terminologie de RADARSAT-2 (GTTR).

Spanish

Save record 7

Record 8 2002-02-12

English

Subject field(s)
  • Naval Mines
  • Demolition (Military)
  • Sea Operations (Military)
DEF

In naval mine warefare, a mine in which a number of buoyant mine cases are attached to the same sinker, so that when the mooring of one mine case is cut, another mine rises from the sinker to its set depth.

OBS

bouquet mine: term and definition standardized by NATO.

French

Domaine(s)
  • Mines marines
  • Destruction (Militaire)
  • Opérations en mer (Militaire)
DEF

En guerre des mines sur mer, ensemble constitué par un certain nombre de corps de mines à flottabilité positive fixés au même crapaud. Quand l'orin d'une mine est coupé par une drague, une autre mine se détache du crapaud pour prendre l'immersion pour laquelle elle a été réglée.

OBS

mine bouquet : terme uniformisé par le Comité de normalisation de la terminologie navale.

OBS

mine bouquet : terme et définition normalisés par l'OTAN.

Spanish

Campo(s) temático(s)
  • Minas marinas
  • Destrucción (Militar)
  • Operaciones marítimas (Militar)
DEF

En guerra de minas naval, conjunto formado por un cierto número de minas de flotabilidad positiva fijas a un solo anclaje. Cuando el amarre de una de ellas es cortado por una draga, otra se suelta para colocarse a la profundidad a la que está ajustada.

Save record 8

Record 9 1996-06-05

English

Subject field(s)
  • Air Pollution
  • Nuclear Waste Materials
CONT

Low-level radioactive wastes can exist in solid liquid or gaseous form. Any solid waste may give off a radioactive gas, as in the case of Radium 226 which gives off Radon 222 when it undergoes alpha decay. Water flowing through a solid waste may leach out soluble radioactive material(e. g., the acid leachates of some uranium mine tailings). As well, solid fine particulates of radioactive waste may take the form of a dust and be carried away on the wind, as in the case in the erosion of mine tailings. Equally, non-radioactive dust particles in the atmosphere can be contaminated with radon daughters as a result of electrostatic attraction. Furthermore, fine solid or liquid radioactive wastes can also take the form of aerosols that, once airborne, may be widely scattered.

Key term(s)
  • solid fine particulate

French

Domaine(s)
  • Pollution de l'air
  • Déchets nucléaires
OBS

Voir aussi «particule», «particules», «particules en suspension», «particules solides en suspension», «particules de poussière» et «aérosol».

Key term(s)
  • particule solide fine

Spanish

Campo(s) temático(s)
  • Contaminación del aire
  • Desechos nucleares
Save record 9

Record 10 1996-05-21

English

Subject field(s)
  • Nuclear Waste Materials
CONT

The next most voluminous waste type [after uranium mine tailings] also derives from mineral processing. In this case the mineral is phosphate rock and the resulting waste is phosphogypsum, a form of calcium sulphate.... The phosphogypsum wastes are the major component of the incidental waste category, but they are no longer produced.

French

Domaine(s)
  • Déchets nucléaires

Spanish

Campo(s) temático(s)
  • Desechos nucleares
Save record 10

Record 11 1996-05-13

English

Subject field(s)
  • Air Pollution
  • Nuclear Waste Materials
CONT

Low-level radioactive wastes can exist in solid liquid or gaseous form. Any solid waste may give off a radioactive gas, as in the case of Radium 226 which gives off Radon 222 when it undergoes alpha decay. Water flowing through a solid waste may leach out soluble radioactive material(e. g., the acid leachates of some uranium mine tailings). As well, solid fine particulates of radioactive waste may take the form of a dust and be carried away on the wind, as in the case in the erosion of mine tailings. Equally, non-radioactive dust particles in the atmosphere can be contaminated with radon daughters as a result of electrostatic attraction. Furthermore, fine solid or liquid radioactive wastes can also take the form of aerosols that, once airborne, may be widely scattered.

OBS

Usually in the plural form.

Key term(s)
  • non radioactive dust particle
  • non-radioactive dust particle
  • non radioactive dust particles

French

Domaine(s)
  • Pollution de l'air
  • Déchets nucléaires
OBS

Terme généralement employé au pluriel.

Key term(s)
  • particule de poussière non radioactive

Spanish

Campo(s) temático(s)
  • Contaminación del aire
  • Desechos nucleares
Key term(s)
  • partícula de polvo no radiactiva
  • partícula de polvo no radioactiva
  • partículas de polvo no radioactivas
Save record 11

Record 12 1996-03-18

English

Subject field(s)
  • Air Pollution
  • Nuclear Waste Materials
CONT

Dusts are formed by the pulverization of solid matter into small size particles. These may be the result of such processes as grinding, crushing, blasting and drilling. Particle sizes range from 1 [micron] up to about 100-200 [microns]. Dust particles are usually irregular in shape. Examples include flyash, rock dusts and flour. They are heterogeneous in size and structure.

CONT

Low-level radioactive wastes can exist in solid liquid or gaseous form. Any solid waste may give off a radioactive gas, as in the case of Radium 226 which gives off Radon 222 when it undergoes alpha decay.... solid fine particulates of radioactive waste may take the form of a dust and be carried away on the wind, as in the case in the erosion of mine tailings. Equally, non-radioactive dust particles in the atmosphere can be contaminated with radon daughters as a result of electrostatic attraction. Furthermore, fine solid or liquid radioactive wastes can also take the form of aerosols that, once airborne, may be widely scattered.

OBS

Usually in the plural form.

Key term(s)
  • dust particle

French

Domaine(s)
  • Pollution de l'air
  • Déchets nucléaires
CONT

Ces particules de poussières microscopiques représenteraient de toute façon une fraction importante des nuages observés, puisqu'environ 10 % de la masse totale pourrait être sous forme de grains de taille inférieure à 0.005 micron.

OBS

Le terme «poussière» possède aussi un autre sens, plus général que la notion étudiée ici, où il devient synonyme de «particule». Bien sûr, dans une expression comme «particule de poussière», il reprend son sens spécifique : particule de moins d'un micron.

OBS

Terme généralement employé au pluriel.

Key term(s)
  • particule de poussière

Spanish

Campo(s) temático(s)
  • Contaminación del aire
  • Desechos nucleares
Save record 12

Record 13 1993-07-02

English

Subject field(s)
  • Minesweeping and Minehunting
OBS

mine case and mine shell : Terminology officially approved by the Naval Terminology Standardization Committee.

French

Domaine(s)
  • Dragage et chasse aux mines
OBS

enveloppe de mine : Terminologie officialisée par le Comité de normalisation de la terminologie navale.

Spanish

Save record 13

Record 14 1992-09-02

English

Subject field(s)
  • Petrography
  • Chronology
CONT

Frequently at the contact of skarns and intrusions there is a completely gradational contact and this is the case at the Memé copper mine where a large block of Cretaceous limestone has been surrounded by quartz-monzonite.

French

Domaine(s)
  • Pétrographie
  • Chronologie
CONT

Parmi les pays européens, seule la Yougoslavie se classe honorablement grâce aux mines de Bor (...) (sulfures au contact du calcaire crétacé et de microdiorites tertiaires).

Spanish

Save record 14

Record 15 1989-03-15

English

Subject field(s)
  • Mining Equipment and Tools
CONT

This shovel is widely used for stone loading. Various models are available to meet particular conditions of track gage, mine car size or headroom available. The loading bucket, mounted on a rocker arm, is pushed forward into the pile of debris; the rocker arm is then actuated to swing the loaded bucket over the rocker carriage and to deliver the bucket load into a mine car or, in the case of one of the models, on to a variable-speed belt conveyor which in turn delivers into the mine car. The machines operate on a rail track and, swivelling on the carriage, can sweep across the width of the heading. On raising the bucket for discharge, the device is self-centering.

French

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

La chargeuse à godet Eimco 21 (...) comprend un châssis sur roues, surmonté d'une caisse métallique n'ayant qu'une tôle de fond et deux tôles latérales (donc pas de tôle en bout) fixées au châssis par un axe central autour duquel elle peut pivoter. (...) La chargeuse travaille sur rails, mais ceux-ci, posés avant le tir, s'arrêtent à 2 m du front. Pour prendre tout le tas, la chargeuse doit avancer au-delà des rails.

OBS

Sur le fond AB de (...) [la] caisse, peut rouler sans glissement un berceau ab solidaire du godet V; la longueur de la courbe ab est exactement la même que celle de la droite AB; de sorte que, par roulement, le berceau ab vient occuper la position opposée a[prime] b[prime]. La position du berceau au chargement est ab. Il suffit alors de faire avancer la chargeuse sur les rails pour que le godet se remplisse. Au contraire, a[prime] b[prime] correspond au remplissage de la berline dans laquelle le godet se vide. Le mouvement de roulement est obtenu par le treuil T sur lequel s'enroule une chaîne passant sur la poulie de contrainte p et aboutissant au berceau en C. Dans la position de déchargement, C occupe la position C[prime]. Le godet revient ensuite à sa position de chargement, la rotation du treuil étant inversée et la pesanteur aidant.

Spanish

Save record 15

Record 16 1981-11-05

English

Subject field(s)
  • Metrology and Units of Measure
  • Mine Ventilation, Heating and Lighting
CONT

Mine roadways offer resistance to air flow due mainly by surface drag between air and roadway sides(...) Energy losses are directly proportional to the cube of the air quantity flowing. A simpler pressure difference relationship is used which is derived from basic fluid flow principles and which can be related to Atkinson's equation. In this case P=RQ [squared] where P is the frictional pressure difference across a length of roadway in pascals : R is the roadway resistance in Gauls(...) ;and Q the air-flow rate in [cub metre]/s. Roadway resistances are expressed in Gauls per 100 m of airway(...)

French

Domaine(s)
  • Unités de mesure et métrologie
  • Ventilation, chauffage et éclairage des mines
OBS

Selon ce qu'en dit M. Favre Bulle, directeur de la revue "Industrie minérale", le Gaul est, dans le nouveau système international, l'unité de mesure de la résistance d'une galerie d'aérage, d'après la formule h = rxq au carré, où h représente la différence de charge (en pascals); r, la résistance (en Gauls), et q le débit (en mètres cubes/seconde). L'ancien système d'unités français utilisait le "murgue", un kilomurgue valant 9,81 Gauls.

OBS

Le terme Gaul ne se retrouve dans aucune des sources françaises consultées.

Spanish

Save record 16

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