FILTRATION DESIGN: A LOOK AT THE STATE-OF-THE-PRACTICE

This paper selectively presents the state-of-the-practice filtration design criteria for soil/geotextile filter systems. 'Filtration' with respect to geotextiles is defined as the process of retaining soil in place, while allowing water to pass from soil. The design criteria, presented here, use only geotextile properties obtained from standardised test methods generic to all textiles. As such, this review is intended to be practical, and applicable to all manufactured styles of geotextiles. The important objectives of these filtration criteria are: (1) soil retention to control piping; (2) sufficient water passage capability to handle excess hydrostatic pore pressure; (3) long-term 'effectiveness', ie ability of the filtration system to resist clogging; (4) survivability and durability of a geotextile. These objectives are critical to any filtration criteria, whether a soil/geotextile system or a graded granular filter is used. The standard methodologies are described for each design criterion, and a concise standard of practice is presented for filtration design of geotextiles for the engineering community. As an effort was made to review only practical and generic filtration criteria, the information presented can be applied to all manufactured styles of geotextiles marketed today.

  • Availability:
  • Corporate Authors:

    Industrial Fabrics Association International

    345 Cedar Building, Suite 450
    St Paul, MN  United States  55101-1088
  • Authors:
    • DeBerardino, S
  • Publication Date: 1993-11

Language

  • English

Media Info

  • Features: References;
  • Pagination: p. 4-10
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00662530
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • Files: ITRD, ATRI
  • Created Date: Jul 28 1994 12:00AM