GENERAL TECHNIQUE FOR LOWERING THE WATER TABLE

TECHNIQUE GENERALE DES RABATTEMENTS DE NAPPE

THE TECHNIQUE OF FILTER NEEDLES USED IN FRANCE FOR APPROXIMATELY FIFTY YEARS IS DESCRIBED. IT FACILITATES THE DRYING OF SOILS OF LOW PERMEABILITY, IT IS THE ONLY USABLE SYSTEM WHERE THE NON-PERMEABLE SOIL LIES AT A SHALLOW DEPTH UNDER THE FLOOR OF THE EXCAVATION TO BE DRAINED, AND IT IS LESS COSTLY THAN FILTER WELLS WHEN BOTH SYSTEMS ARE APPLICABLE. THE SYSTEM IS CAPABLE OF LOWERING THE WATER TABLE BY 5 M TO 6 M ONLY. THE VARIOUS TECHNICAL PROCEDURES WHICH MUST BE USED DEPENDING ON THE PERMEABILITY OF THE MATERIAL OF THE WATER TABLE ARE OUTLINED.

Language

  • French

Media Info

  • Pagination: 306-7
  • Serial:
    • Construction
    • Volume: 31
    • Issue Number: 6
    • Publisher: Reed Construction Data
    • ISSN: 0045-3900

Subject/Index Terms

Filing Info

  • Accession Number: 01297601
  • Record Type: Publication
  • Source Agency: Institut Francais des Sciences et Technologies des Transports, de l'Aménagement et des Réseaux (IFSTTAR)
  • Files: ITRD
  • Created Date: Nov 21 2010 6:25AM