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ABAISSEMENT NAPPE SOUTERRAINE [1 record]

Record 1 2000-06-27

English

Subject field(s)
  • Cofferdams and Dewatering (Construction)
  • Sewers and Drainage
DEF

Lowering the water-table so that excavations or cuttings may be made in relatively dry conditions and also to strengthen the sides to improve stability. Lowering may be done by wellpoints or pumping.

Key term(s)
  • ground-water lowering

French

Domaine(s)
  • Épuisements et batardeaux (Construction)
  • Égouts et drainage
DEF

Abaissement du niveau piézométrique de la nappe au-dessous du niveau de travail, en général pour la seule durée des travaux.

CONT

Différents modes de fondations. [...] Si le terrain est accessible par épuisement indirect, [...] on peut aussi procéder aux épuisements voulus par rabattement de nappes aquifères; [...] Généralement, le rabattement est effectué à l'aide de puits filtrants.

OBS

Le terme «rabattement» semble d'un emploi beaucoup plus fréquent que celui d'«abaissement».

Spanish

Save record 1

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