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IMPERMEABLE BARRIER [12 records]

Record 1 2021-07-14

English

Subject field(s)
  • Petrography
DEF

The impermeable rock overlying an oil or gas reservoir that tends to prevent migration of the reservoir fluids from the reservoir.

CONT

Oil and gas become trapped in the subsurface where there is a barrier formed by impermeable rocks, such as well-cemented lithologies, mudrock and evaporite beds. These impermeable lithologies are known as cap rocks. The hydrocarbons will find their way around the cap-rock barrier unless there is some form of hydrocarbon trap that prevents further upward migration.

OBS

All cap rocks are impermeable, therefore making the terms "impermeable cap rock" and "impervious cap rock" redundant.

Key term(s)
  • caprock

French

Domaine(s)
  • Pétrographie
DEF

[...] barrière étanche [permettant] de sceller la roche réservoir, évitant par le fait même une dispersion du pétrole et du gaz naturel.

OBS

Comme les roches couverture sont toujours imperméables, le terme «roche couverture imperméable» est redondant.

Key term(s)
  • roche-couverture
  • roche-couverture imperméable

Spanish

Save record 1

Record 2 2015-04-29

English

Subject field(s)
  • Pollution (General)
  • Road Maintenance
CONT

Salt releases from storage sites can be controlled through the use of covered storage on impermeable pads(creating a barrier to control salt loss), runoff management to prevent salts or chloride contaminated runoff from entering the environment and good housekeeping practices.

French

Domaine(s)
  • Pollution (Généralités)
  • Entretien des routes
CONT

Les rejets de sels provenant des centres d'entreposage peuvent être contrôlés par un entreposage couvert sur des plateformes imperméables (créant une barrière pour contrôler les pertes de sel), par la gestion des eaux de drainage pour éviter que les eaux d'écoulement contaminées par le chlorure ou les sels ne pénètrent dans l'environnement ainsi que par de bonnes pratiques d'entretien.

Spanish

Save record 2

Record 3 2012-05-08

English

Subject field(s)
  • Technical Textiles
  • Civil Engineering
  • Soil Mechanics (Engineering)
DEF

An essentially impermeable membrane used with foundation, soil, rock, earth or any other geotechnical engineering-related material as an integral part of human-made project, structure, or system.

CONT

Geomembranes are very low permeability membrane liners and barriers used with any geotechnical engineering based material so as to control fluid migration in a man-made project, structure or system.

OBS

Geomembrane : The term liner applies when a geomembrane is used as an interface or a surface revetment. The term barrier is usually reserved for the cases where the geomembrane is used inside an earth mass. Geomembrane is a generic term which has been proposed to replace many terms such as : synthetic membranes, polymeric membranes, plastic liners, flexible membrane liners, impermeable membranes and impervious sheets. These terms are not appropriate because :(i) synthetic, polymeric and plastic are too restrictive;(ii) geomembranes are not always used as liners;(iii) flexible membrane is redundant; and(iv) no material is absolutely impermeable or impervious. In addition, many users for these materials habitually designate them with trade names, which adds to the terminology confusion. Geomembranes should not be confused with other similar membranes used for such applications as single-ply roofing, floating covers and air supported roof. Also, geomembranes should not be confused with geotextiles [which are permeable by construction].

OBS

Liquid containment (pond) liners. Undoubtedly the largest single use of geomembranes is in the area of liquid containment. In fact, the name "geomembranes" is actually one that supersedes the name "pond liner," reflecting the original use of the plastic and rubber materials ...

OBS

Geotextiles are defined as permeable textiles used in conjunction with soils or rocks ... In contrast, geomembranes are defined as impermeable membranes which can also be used in conjunction with soils or rocks.

French

Domaine(s)
  • Textiles techniques
  • Génie civil
  • Mécanique des sols
DEF

Feuille synthétique introduite dans le sol et servant d'écran séparateur.

OBS

Il existe deux types principaux de géotextiles, perméables et imperméables. Ces derniers [...] sont souvent appelés géomembranes, et le terme géotextile est réservé aux textiles perméables apparus après 1960.

OBS

[Les géomembranes sont] utilisées dans le génie civil pour sa fonction d'étanchéité ou d'imperméabilisation.

Spanish

Campo(s) temático(s)
  • Textiles técnicos
  • Ingeniería civil
  • Mecánica del suelo
DEF

Lámina impermeable y flexible que se utiliza mayoritariamente en lagunas, plantas de tratamiento, rellenos sanitarios, etc. [para] impermeabilizar.

CONT

Existen diferentes tipos de geosintéticos: los geotextiles, las geomembranas, geomallas, georedes, geoceldas, geomantas, biomantas y la combinación de ellos: los geocompuestos.

Save record 3

Record 4 2011-02-10

English

Subject field(s)
  • Atmospheric, Climatic and Meteorological Phenomena
  • Search and Rescue (Paramilitary)
CONT

Strategy for [Avalanche] Victims.... As the avalanche is coming to a stop. Make an air space around your mouth. [...] Keep one hand near your mouth to scoop out an air space and wiggle to make an air space around your body.... Your breath will quickly condense onto the snow around your mouth and form an "ice mask, "an impermeable barrier that allows carbon dioxide to more quickly build up around your mouth. A larger space around your mouth tends to delay the formation of an ice mask, giving you extra precious minutes. Also, a cavity around your body lets the carbon dioxide diffuse more efficiently. It is thought that completely buried victims without an air pocket usually die in 20 minutes while victims with an air pocket can live up to 120 minutes.

French

Domaine(s)
  • Phénomènes météorologiques, climatiques et atmosphériques
  • Recherche et sauvetage (Paramilitaire)
CONT

Une veste empêchant les victimes d'avalanche de s'asphyxier peut également s'ajouter au trio. De quoi s'agit-il? C'est une veste que vous portez par-dessus tout vos vêtements, dans laquelle il y a un petit bidule qui extirpe tout l'O2 de la neige qui vous entoure et rejette votre CO2 derrière vous (et non devant). Pourquoi cela? L'air nocif exhalé est chaud et humide. Par conséquent, il aura tôt fait de former un masque de glace devant vous, qui vous asphyxiera en quelques minutes. D'où l'avantage de ce produit, qui vous assure l'accès à l'oxygène plus longtemps.

Spanish

Save record 4

Record 5 2008-09-30

English

Subject field(s)
  • Hydrology and Hydrography
  • Geology
CONT

Bounded aquifers. Pumping tests sometimes have to be performed near the boundary of an aquifer. A boundary may be either a recharging boundary(e. g. a river or a canal) or a barrier boundary(e. g. an impermeable valley wall). When an aquifer boundary is located within the area influenced by a pumping test, the general assumption that the aquifer is of infinite areal extent is no longer valid.

French

Domaine(s)
  • Hydrologie et hydrographie
  • Géologie

Spanish

Save record 5

Record 6 2008-01-29

English

Subject field(s)
  • Atmospheric, Climatic and Meteorological Phenomena
  • Search and Rescue (Paramilitary)
CONT

Strategy for [Avalanche] Victims.... As the avalanche is coming to a stop. Make an air space around your mouth.... Keep one hand near your mouth to scoop out an air space and wiggle to make an air space around your body. Your breath will quickly condense onto the snow around your mouth and form an "ice mask, "an impermeable barrier that allows carbon dioxide to more quickly build up around your mouth. A larger space around your mouth tends to delay the formation of an ice mask, giving you extra precious minutes. Also, a cavity around your body lets the carbon dioxide diffuse more efficiently. It is thought that completely buried victims without an air pocket usually die in 20 minutes while victims with an air pocket can live up to 120 minutes.

French

Domaine(s)
  • Phénomènes météorologiques, climatiques et atmosphériques
  • Recherche et sauvetage (Paramilitaire)
DEF

Espace qu'une victime d'avalanche enfouie sous la neige se crée autour du visage avec les mains et en bougeant la tête et le corps juste avant que l'avalanche ne s'immobilise afin de prévenir l'asphyxie et augmenter ses chances de survie.

CONT

Toutes les victimes ensevelies ne disposant pas d'une poche d'air meurent par asphyxie.

Spanish

Save record 6

Record 7 2002-09-04

English

Subject field(s)
  • Hydrology and Hydrography
  • Geology
DEF

A spring resulting from the diversion of a flow of ground water over or underneath an impermeable barrier in the floor of a valley.

French

Domaine(s)
  • Hydrologie et hydrographie
  • Géologie

Spanish

Save record 7

Record 8 1997-12-04

English

Subject field(s)
  • Hydrology and Hydrography
  • Geology
DEF

Boundary of a flow domain through which no flow can take place because of greatly reduced permeability on the other side of the boundary.

Key term(s)
  • impermeable barrier

French

Domaine(s)
  • Hydrologie et hydrographie
  • Géologie
DEF

Dans un domaine d'écoulement, limite à partir de laquelle il n'y a plus d'écoulement, la perméabilité étant extrêmement réduite de l'autre côté de cette limite.

Spanish

Campo(s) temático(s)
  • Hidrología e hidrografía
  • Geología
DEF

Límite de una zona de flujo a través de la cual no puede fluir una corriente debido a la escasa permeabilidad existente al otro lado del límite.

Save record 8

Record 9 1996-04-09

English

Subject field(s)
  • Hydrology and Hydrography
DEF

Wall or collar providing an impermeable barrier intended to reduce percolation.

French

Domaine(s)
  • Hydrologie et hydrographie
DEF

Paroi ou virole formant une barrière imperméable destinée à réduire la percolation.

Spanish

Campo(s) temático(s)
  • Hidrología e hidrografía
DEF

Muro o zuncho que actúa como barrera impermeable para reducir la percolación.

Save record 9

Record 10 1991-02-06

English

Subject field(s)
  • Technical Textiles
  • Civil Engineering
  • Soil Mechanics (Engineering)
CONT

Geomembranes are very low permeability membrane liners and barriers used with any geotechnical engineering based material so as to control fluid migrations in a man-made project, structure or system. The term liner applies when a geomembrane is used as an interface or a surface revetment. The term barrier is usually reserved for the cases where the geomembrane is used inside an earth mass. Geomembrane is a generic term which has been proposed to replace many terms such as : synthetic membranes, polymeric membranes, plastic liners, flexible membrane liners, impermeable membranes and impervious sheets.

OBS

Geomembrane Liners: Accidents and Preventive Measures. Performance of geomembrane-lined facilities used for waste disposal and liquid storage is analyzed, providing a check-list of failure mechanisms and guidelines for prevention. Approximately thirty such facilities exhibiting various mechanisms of failures were investigated by the author. Failure is characterized by leakage or large liner displacement hampering operation of the facility.

French

Domaine(s)
  • Textiles techniques
  • Génie civil
  • Mécanique des sols
DEF

Nappe mince, utilisée dans le Génie Civil pour sa fonction d'étanchéité ou d'imperméabilisation.

DEF

Feuille synthétique introduite dans le sol et servant d'écran séparateur.

OBS

Il existe deux types principaux de géotextiles, perméables et imperméables. Ces derniers (...) sont souvent appelés géomembranes, et le terme géotextile est réservé aux textiles perméables apparus après 1960.

Spanish

Save record 10

Record 11 1991-02-04

English

Subject field(s)
  • Waste Management
CONT

As a groundwater pollution control mechanism, the use of a liner on the bottom and sides of a landfill has been considered necessary for many years. This necessity is created by the moisture in the landfill materials (augmented by rainfall and snowmelt) interacting with the contained waste, forming a liquid called "leachate". ... The types of liners that have been used are ... numerous ... but the predominant liner material until recently has been clay .... There are two drawbacks to clay liners, however, both of which have given impetus to the use of geomembranes for landfill liners.

OBS

Geomembranes are very low permeability membrane liners and barriers used with any geotechnical engineering based material so as to control fluid migrations in a man-made project, structure or system. The term liner applies when a geomembrane is used as an interface or a surface revetment. The term barrier is usually reserved for the cases where the geomembrane is used inside an earth mass. Geomembrane is a generic term which has been proposed to replace many terms such as : synthetic membranes, polymeric membranes, plastic liners, flexible membrane liners, impermeable membranes and impervious sheets.

French

Domaine(s)
  • Gestion des déchets
CONT

Membrane d'étanchéité pour bassins et décharges contrôlées (..) La membrane CARBOFOL est une feuille en copolymère d'éthylène bitume (E.C.B.) destinée à assurer l'étanchéité de grands bassins, barrages et décharges contrôlées.

OBS

Stockages/Décharges. Association [géotextile] avec géomembrane. A. Définition : couche de protection de la membrane d'étanchéité tapissant la surface d'un bassin de stockage de liquides ou de matériaux, ou celle d'une décharge contrôlée.

Spanish

Save record 11

Record 12 1991-02-04

English

Subject field(s)
  • Technical Textiles
  • Civil Engineering
  • Soil Mechanics (Engineering)
CONT

Geomembrane Liners: Accidents and Preventive Measures. Performance of geomembrane-lined facilities used for waste disposal and liquid storage is analyzed, providing a check-list of failure mechanisms and guidelines for prevention. Approximately thirty such facilities exhibiting various mechanisms of failures were investigated by the author. Failure is characterized by leakage or large liner displacement hampering operation of the facility.

OBS

Geomembranes are very low permeability membrane liners and barriers used with any geotechnical engineering based material so as to control fluid migrations in man-made project, structure or system. The term liner applies when a geomembrane is used as an interface or a surface revetment. The term barrier is usually reserved for the cases where the geomembrane is used inside an earth mass. Geomembrane is a generic term which has been proposed to replace many terms such as : synthetic membranes, polymeric membranes, plastic liners, flexible membrane liners, impermeable membranes and impervious sheets.

French

Domaine(s)
  • Textiles techniques
  • Génie civil
  • Mécanique des sols
DEF

Nappe mince, utilisée dans le Génie Civil pour sa fonction d'étanchéité ou d'imperméabilisation.

DEF

Feuille synthétique introduite dans le sol et servant d'écran séparateur.

CONT

Une analyse du comportement de plus de trente réserves de liquides et de dépôts de déchets revêtus de géomembranes a permis d'établir une liste de mécanismes de défaillance et des recommandations pour leur prévention. Les défaillances sont de deux types : fuite de liquide ou grand déplacement de la géomembrane empêchant l'utilisation de l'ouvrage.

OBS

Il existe deux types principaux de géotextiles, perméables et imperméables. Ces derniers (...) sont souvent appelés géomembranes, et le terme géotextile est réservé aux textiles perméables apparus après 1960.

Spanish

Save record 12

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