GEOTEXTILE FILTER CRITERIA

In the past decade, drainage fabric performance has been the subject of numerous research projects. Two general conclusions can be drawn from the many research findings: (a) both woven and nonwoven fabrics can provide acceptable filtration performance in drainage applications, and (b) soil and hydraulic conditions influence fabric filter properties necessary for optimum performance. More specific observations are made in this paper concerning the relation between fabric and soil properties versus drain fabric performance. These observations include the following: (a) fabric equivalent opening size (EOS) and permeability coefficients do not indicate clogging potential, (b) fabric EOS provides an indirect indication of retention ability, (c) gap-graded soils and high hydraulic gradient conditions are conducive to soil piping and filter clogging, (d) well-graded soils and low hydraulic gradients are not conducive to soil piping, and (e) fabric clogging potential can be determined by testing soil-fabric systems in simulated drainage tests that model expected use conditions. The state of the art in drainage fabric technology is reviewed, and rational filter criteria for geotextiles based on three performance parameters--retention ability, permeability, and clogging resistance--are recommended. (Author)

• Record URL:
  • http://onlinepubs.trb.org/Onlinepubs/trr/1983/916/916-008.pdf
• Record URL:
  • https://scholar.google.com/scholar_lookup?title=GEOTEXTILE+FILTER+CRITERIA&author=R.+Carroll&publication_year=1983
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/0309035597
• Supplemental Notes:
  • Publication of this paper sponsored by Task Force on Engineering Fabrics. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved
• Authors:
  • Carroll Jr, R G
• Publication Date: 1983

Media Info

• Media Type: Print
• Features: Figures; Photos; References; Tables;
• Pagination: pp 46-53
• Monograph Title: Engineering fabrics in transportation construction
• Serial:
  • Transportation Research Record
  • Issue Number: 916
  • Publisher: Transportation Research Board
  • ISSN: 0361-1981

Subject/Index Terms

• TRT Terms: Coefficients; Drainage; Filters; Gap grading; Geotextiles; Hydraulic structures; Permeability; Pipe; Properties of materials; Soils; State of the art studies
• Uncontrolled Terms: Criteria; Soil properties; Water retention
• Subject Areas: Geotechnology; Highways; Hydraulics and Hydrology; Materials; I42: Soil Mechanics;

Filing Info

• Accession Number: 00381707
• Record Type: Publication
• ISBN: 0309035597
• Files: TRIS, TRB
• Created Date: Mar 30 1984 12:00AM