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ALVEOLE STOCKAGE SURFACE [1 record]

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Alphabetical list of terms

Record 1 2011-07-25

English

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

An engineered concrete structure located above natural grade that is closed by placement of a concrete cover and that is provided with vertical access (through an open top) for placement of the radioactive waste.

CONT

Figure 8 outlines the above-ground vault option. Its main elements include: . wastes disposed of above grade; . an engineered concrete cover over the wastes; . structural stability provided by the walls and cross-walls of the facility; and . voids between containerized wastes filled with nonstructural material (bulk wastes are placed in the vault, uncompacted, by an enclosed-conveyor materials handling system through holes in the roof). One major reason for building an above-ground vault is that it allows for constant surveillance. ... Since any such facility would be exposed to the elements, natural decay would be a problem and constant maintenance would be required.

CONT

Aboveground vault disposal consists of placing the waste in engineered concrete structures located above natural grade. A vault is completely closed by placement of a concrete roof over each backfilled cell. The facility lacks any earthen cover system and relies principally on the structure to isolate the waste from the biosphere.

CONT

... the aboveground vault is a large steel-reinforced concrete structure with vertical access (through an open top) for placement of the waste. Within each structure there are numerous disposal units. Each disposal unit is sealed when filled to capacity. Individual units are sized to accommodate waste deliveries for about 1 to 2 weeks.

CONT

... it would be undesirable to place the AGV directly on shield bedrock where radionuclides could be washed into fissures and cracks which would be difficult to monitor or control.

OBS

See also "vault".

Key term(s)
  • above-ground waste disposal vault
  • aboveground waste disposal vault
  • above-ground storage vault
  • aboveground storage vault

French

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

Voir aussi «enceinte de stockage», «stockage en surface» et «stockage en tumulus».

OBS

alvéole : Il est à noter que la forme au masculin est vieillie.

Spanish

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