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Fiche 1,  Justifications,  Anglais

Record number: 1, Textual support number: 1 OBS

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 sand or earthen materials - bulk wastes may be compacted.  2, fiche 1, Anglais, - shallow%20land%20storage%20facility

Fiche 1,  Justifications,  Français

Record number: 1, Textual support number: 1 OBS

Voir aussi «stockage à faible profondeur» et «enfouissement à faible profondeur».  3, fiche 1, Français, - installation%20de%20stockage%20%C3%A0%20faible%20profondeur

Fiche 1,  Justifications,  Espagnol

Fiche 2,  Justifications,  Anglais

Record number: 2, Textual support number: 1 CONT

Shallow land burial trenches are typically long, narrow, excavations with an engineered floor, an engineered drainage collection and monitoring system, and an engineered cover system.  1, fiche 2, Anglais, - shallow%20land%20burial%20trench

Record number: 2, Textual support number: 1 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.  1, fiche 2, Anglais, - shallow%20land%20burial%20trench

Record number: 2, Textual support number: 2 CONT

Typically, each [shallow land burial] trench has a sloping floor cut into the natural soil and a French drain of gravel down one of the long sides. The trench bottom is covered with a foot or two of sand to allow water to flow freely into the French drain, especially when the trench is open during operations. Sampling pipes or tubes are placed against the trench wall, with their lower ends in the French drain, when the trench is dug. Monitoring of each disposal unit (engineered trench) is accomplished by sampling any water found in the French drain through these tubes and analyzing its contents. Sampling wells are placed around the perimeter of the facility, and elsewhere if desired, and air sampling is conducted at least until the end of the operations.  1, fiche 2, Anglais, - shallow%20land%20burial%20trench

Fiche 2,  Justifications,  Français

Fiche 2,  Justifications,  Espagnol

Fiche 3,  Justifications,  Anglais

Record number: 3, Textual support number: 1 OBS

... within 30 m of the surface ....  2, fiche 3, Anglais, - shallow%20storage

Record number: 3, Textual support number: 2 OBS

The two terms "disposal" and "storage" are very often used interchangeably but they should be distinguished. "Disposal" should be used only in referring to permanent storage.  1, fiche 3, Anglais, - shallow%20storage

Record number: 3, Textual support number: 3 OBS

See also "shallow land burial".  1, fiche 3, Anglais, - shallow%20storage

Fiche 3,  Justifications,  Français

Record number: 3, Textual support number: 1 CONT

Déchets à vie courte : le stockage en surface et subsurface. L'option principale retenue en France, pour les déchets de la catégorie A, dont l'essentiel de la radioactivité aura disparu dans 300 ans, est leur stockage en surface, ou à faible profondeur. Leur isolement est assuré par des barrières artificielles les protégeant notamment contre les eaux de ruissellement et souterraines. La protection contre l'action éventuelle de l'homme, et le contrôle de l'étanchéité, sont assurés par un gardiennage et une surveillance pendant une durée maximale de trois cents ans après la fermeture.  2, fiche 3, Français, - stockage%20au%20voisinage%20de%20la%20surface

Record number: 3, Textual support number: 2 CONT

L'étude de certaines barrières pour le stockage au voisinage de la surface de déchets de faible activité dans des structures ouvragées.  1, fiche 3, Français, - stockage%20au%20voisinage%20de%20la%20surface

Record number: 3, Textual support number: 1 OBS

Le terme «évacuation» doit être utilisé pour désigner le stockage permanent.  3, fiche 3, Français, - stockage%20au%20voisinage%20de%20la%20surface

Fiche 3,  Justifications,  Espagnol