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ZANJA [6 records]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 2012-01-17

English

Subject field(s)
  • Waste Management
  • Nuclear Waste Materials
CONT

The simplest form of engineered trench, or shallow land burial, relies mainly on the properties of the excavated overburden and the geohydrologic properties of the site for containment. The intent is to ensure that the travel time of radionuclides from the waste to the human environment via groundwater is long compared to the nuclide half lives. Travel time is long because of low hydraulic gradients, soils of low water permeability and high contaminant adsorption, and lengthy pathways across exclusion zones.

CONT

Illustration of a shallow land burial facility (engineered trench). ... Figure 9 outlines the engineered trench option. In this option, the major characteristics are that: . wastes are placed below grade (in suitable hydrogeological conditions) in trenches having a specially prepared bottom that incorporates a drainage system; . there is an earthen cover over the wastes that easily can incorporate additional engineered barriers; . structural stability is not provided by the disposal facility; and . for structural stability, voids between the waste containers are filled with sans or earthen materials - bulk wastes may be compacted.

CONT

Shallow-land burial in trenches was the original low-level waste disposal practice at the beginning of the nuclear era. The method originally consisted in emplacing the wastes in trenches dug into the ground at depths ranging from 3 to 6 m and covering the emplaced wastes with about 1 m of soil.

CONT

Burial trenches without additional engineered barriers can be used provided that radionuclides will migrate into groundwater beneath the site at an acceptable rate.

OBS

As used in this context, the word "engineered" refers to the fact that features and materials have been designed or selected to accomplish certain functions. In shallow land burial the materials are usually natural rather than man-made.

French

Domaine(s)
  • Gestion des déchets
  • Déchets nucléaires
CONT

Des stockages par enfouissement à faible profondeur sont réalisés aux États-Unis, en Grande-Bretagne, en U.R.S.S., au Canada et en France. Dans les deux premiers pays, le stockage se fait sur des déchets pas ou peu conditionnés, dans des tranchées en pleine terre.

CONT

Stockage de surface. [...] Le stockage peut être réalisé en tranchées, mode acceptable pour des terrains argileux, si la nappe phréatique est suffisamment basse.

OBS

Voir aussi «tranchée bétonnée».

OBS

Dans ce contexte, l'adjectif «engineered» pourrait se rendre par «spécialement conçu». Voir l'observation qui se trouve dans le module anglais de la fiche.

PHR

Tranchée bétonnée (à faible profondeur, au voisinage de la surface).

PHR

Couverture de tranchée. Enfouissement, stockage dans des tranchées. Stockage en tranchées.

Spanish

Campo(s) temático(s)
  • Gestión de los desechos
  • Desechos nucleares
Save record 1

Record 2 2010-09-10

English

Subject field(s)
  • Telecommunications Facilities
  • Installation of Electrical Equipment
CONT

That's why the first and final sections of a cable are heavily armoured and buried by a highly sophisticated plough that opens a trench and covers the cable in sand.

French

Domaine(s)
  • Installations de télécommunications
  • Installation des équipements électriques
CONT

Remorquée par le navire câblier, la charrue creuse un sillon de 60 cm de profondeur.

Spanish

Campo(s) temático(s)
  • Instalaciones de telecomunicaciones
  • Instalación de equipos eléctricos
Save record 2

Record 3 2006-11-21

English

Subject field(s)
  • Sewers and Drainage
  • Drainage and Irrigation (Agric.)
DEF

An open channel which is used to carry off surplus ground and surface water.

CONT

Drainage systems ... The major channels are generally open drains, or ditches, but on each farm closed, or covered, drains are used. Open drains are relatively inexpensive to install, and can carry larger amounts of water. However, they are rarely used for on-farm drainage because of the large amount of land that would be removed from cultivation and because of the difficulties of conducting farming operations between closely spaced open drains.

CONT

Drainage ditches are often dangerous and unsightly; generally, they should not be incorporated into a site development because other methods are safer and more efficient.

French

Domaine(s)
  • Égouts et drainage
  • Drainage et irrigation (Agriculture)
CONT

Le drainage par fossés ouverts permet l'évacuation en surface des eaux; il suppose le creusement de rigoles et de fossés à pente régulière et de section croissante; malheureusement, cet assainissement suppose une topographie convenable des parcelles, gêne la circulation des machines et provoque une perte de terrain parfois importante.

CONT

On réalise l'assainissement en provoquant l'écoulement des eaux stagnantes souterraines au moyen de fossés de drainage, de drains enterrés, de captage de sources.

CONT

Drainage par fossés. [...] L'assainissement des forêts, des bois et des tourbières est exclusivement réalisé par des fossés.

Spanish

Campo(s) temático(s)
  • Alcantarillas y drenaje
  • Drenaje y riego (Agricultura)
Save record 3

Record 4 2005-07-21

English

Subject field(s)
  • Horse Racing and Equestrian Sports

French

Domaine(s)
  • Courses hippiques et sports équestres

Spanish

Campo(s) temático(s)
  • Carreras de caballos y deportes ecuestres
Save record 4

Record 5 2003-04-25

English

Subject field(s)
  • Toponymy
  • Geomorphology and Geomorphogeny
OBS

ditch: there is no example in Canada of this generic when its meaning is a trench used for collecting and distributing water. The Canadian Geographical Names Board of (CGNB) therefore recommends to translate "fossé" by "ditch".

French

Domaine(s)
  • Toponymie
  • Géomorphologie et géomorphogénie
DEF

Tranchée servant à la réception ou à l'écoulement des eaux.

CONT

Fossé Allard, Québec.

OBS

fossé : générique attesté au Québec.

OBS

fossé : terme et définition uniformisés par la Commission de toponymie du Canada (CTC) (anciennement appelée le Comité permanent canadien des noms géographiques -- CPCNG) dans le cadre du glossaire (BT-176) faisant autorité sur la question des génériques en usage au Canada.

Spanish

Campo(s) temático(s)
  • Toponimia
  • Geomorfología y geomorfogénesis
Save record 5

Record 6 2002-02-11

English

Subject field(s)
  • Hydrology and Hydrography
DEF

Man-made small open channel constructed through earth or rock for the purpose of conveying water.

French

Domaine(s)
  • Hydrologie et hydrographie
DEF

Canal ouvert artificiel de petite dimension creusé dans la terre ou la roche pour acheminer de l'eau.

Spanish

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

Canal artificial de pequeño tamaño que se perfora a través de roca o tierra, para conducir agua.

Save record 6

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