GEOTEXTILES AS FILTERS

This paper discusses the factors affecting the design choice and performance of a geotextile as a soil filter. The applications of fabric filters and drains are described with the aid of a pictorial representation of many of the filtration uses of geotextiles. The mechanisms of filtration is discussed and a section deals with the determination of relevant fabric properties for filtration e.g. fabric pore size, permeability, thickness, rigidity of structure. The external factors influencing fabric screen operation are listed in tabular form. A review of design rules is presented whereby the rules are developed the following four approaches: from the well-screen/slotted pipe criteria, from classical rules for granular filters, from laboratory tests using soil/fabric systems and from observed field behaviour. Comments are included on design methods for uni-directional flow conditions and reversing flow/hydrodynamic condition. (TRRL)

  • Availability:
  • Corporate Authors:

    Foundation Publications Limited

    7 Ongar Road
    Brentwood CM15 9AU, Essex,   England 
  • Authors:
    • HOARE, D J
  • Publication Date: 1984-3

Media Info

  • Features: Figures; References; Tables;
  • Pagination: p. 29
  • Serial:
    • GROUND ENGINEERING
    • Volume: 17
    • Issue Number: 2
    • Publisher: EMAP CONSTRUCT LIMITED
    • ISSN: 0017-4653

Subject/Index Terms

Filing Info

  • Accession Number: 00393285
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • Files: ITRD, TRIS
  • Created Date: Jun 30 1985 12:00AM