VERTICAL CAPILLARY SCREENS: AN EFFECTIVE METHOD OF PREVENTING THE EDGE EFFECT, OPERATION, DESIGN AND CONSTRUCTION

DES ECRANS CAPILLAIRES VERTICAUX: MOYEN D'ACTION EFFICACE CONTRE L'EFFET DE BORD, FONCTIONNEMENT, CONCEPTION, REALISATION

After giving a definition of the edge effect and its danger, the author discusses preventive measures, among others the vertical capillary screen which is in fact a narrow trench filled with materials (sand) of even coarse grading offering some capillary characteristics such as a rapid decrease in suction at a given degree of saturation and high permeability. Attention is drawn to the criteria of material selection for screens, to the design itself of the screens and to the study of various practical problems of installation. (TRRL)

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/00401277
• Corporate Authors:

  Association Permanente des Congres Belges de Route

  49 avenue d'Auderghem
  Brussels 4,   Belgium 
• Authors:
  • Brull, A
• Publication Date: 1978

Language

• French

Media Info

• Features: Figures; Photos; References; Tables;
• Pagination: p. 1-20
• Serial:
  • Technique Routiere
  • Volume: 23
  • Issue Number: 4
  • Publisher: Association Permanente des Congres Belges de Route
  • ISSN: 0040-1277

Subject/Index Terms

• TRT Terms: Capillarity; Continuously graded aggregates; Drainage; Impacts; Pavements; Percent saturation; Permeability; Sand; Sand drains; Screens; Soil suction; Strength of materials; Subgrade (Pavements); Surface drainage; Vertical drains; Walls; Water
• Uncontrolled Terms: Edges; Vertical
• Old TRIS Terms: Highway drainage
• ITRD Terms: 5901: Capillarity; 4598: Continuously graded aggregate; 5907: Degree of saturation (mater); 2937: Drainage; 5509: Edge effect; 2955: Pavement; 5921: Permeability; 4105: Sand; 2950: Subgrade; 5771: Suction; 9087: Vertical; 3368: Wall; 4355: Water
• Subject Areas: Construction; Geotechnology; Highways; Hydraulics and Hydrology; Pavements; I26: Water Run-off - Freeze-thaw; I51: Earthworks and Soil Drainage;

Filing Info

• Accession Number: 00317197
• Record Type: Publication
• Source Agency: Centre de Recherches Routieres (CRR)
• Files: ITRD, TRIS
• Created Date: Feb 6 1981 12:00AM