DESIGN AND CONSTRUCTION OF A GEOTEXTILE REINFORCED TAXIWAY OVER PEAT

Several alternatives were investigated for the construction of the taxiway extension across a swamp at Duluth International Airport, Minnesota. The obvious method was by complete excavation and replacement of the peat, raising the grade by seven to 10 feet on a stabilized embankment above the swamp level to match the pavement level to the existing system. Other alternatives were the displacement of peat with final surcharge or the placement of geotextile, stage loading of peat with a final surcharge. The latter method was chosen as the most cost effective and environmentally acceptable construction method. Amoco Propex 2006, a slit film fabric in the machine direction and a fibulated type in the cross disection was used. The fabric was designed to prevent puncturing of the fill into peat during initial loading, prevent failure of the embankment side slopes and provide for relatively uniform settlement. To keep settlement of the peat after placement of the pavement a six foot high surcharge was placed at the pavement level. The rate of advancement thickness and side slopes of the fill were carefully controlled. Settlements measured after six months are within the three to four foot range predicted. (TRRL)

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/08824983
• Corporate Authors:

  Industrial Fabrics Association International

  345 Cedar Building, Suite 450
  St Paul, MN  United States  55101-1088
• Authors:
  • Gale, S M
  • Henderson
• Publication Date: 1984

Media Info

• Features: Figures; Photos;
• Pagination: p. 7
• Serial:
  • Geotechnical Fabrics Report
  • Volume: 2
  • Issue Number: 1
  • Publisher: Industrial Fabrics Association International
  • ISSN: 0882-4983

Subject/Index Terms

• TRT Terms: Airport runways; Construction management; Geotextiles; Ground settlement; Loads; Nonwoven materials; Peat; Standardization; Structural settlement
• Geographic Terms: United States
• ITRD Terms: 3666: Construction method; 4568: Geotextile; 5567: Load; 4558: Nonwoven material; 4349: Peat; 1038: Runway; 5792: Settlement; 8122: USA
• Subject Areas: Construction; Geotechnology; Highways; Materials; Pavements; I35: Miscellaneous Materials; I51: Earthworks and Soil Drainage;

Filing Info

• Accession Number: 00394580
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• Files: ITRD, TRIS
• Created Date: Jul 31 1985 12:00AM