TENSILE REINFORCEMENT OF ROAD EMBANKMENTS ON POLYGONAL GROUND BY GEOTEXTILES OR RELATED MATERIALS. INTERIM REPORT

This study is a continuation of a previous study. Together they include the development of the theory needed to design a road supported over a void by a geotextile or related material, and the performance of a series of full-scale field tests to verify the theory. The previous study included the basic development of the theory and the performance of 12 test sections to verify the theory. The field tests in that study were not conclusive. The current study includes some refinement of the theory and the performance of additional testing. The tests in this study were conclusive. Design guidelines are presented for use on a trial basis on a production project. The theory has been presented in detail in several other publications and only the computer program is presented herein. The theory indicates that it would be possible to span voids of 10 feet or more with currently available materials. The field test results from the previous study are presented in detail in the final report for that study. The field tests from this study are presented in an abbreviated form in accordance with the level of funding. The results of the tests prove that it is practical to span a six-foot-wide void with a geotextile or related material, and indicates that the design procedure is adequately conservative in those situations where the geology of the subgrade is such that the design technique is applicable and the design parameters can be reliably determined.

• Record URL:
  • http://www.dot.state.ak.us/stwddes/research/assets/pdf/fhwa_ak_rd_86_29.pdf
• 
• Corporate Authors:

  Alaska Department of Transportation and Public Facilities

  2301 Peger Road
  Fairbanks, AK  United States  99701

  Federal Highway Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Authors:
  • Kinney, T C
• Publication Date: 1986

Media Info

• Pagination: 26 p.

Subject/Index Terms

• TRT Terms: Computer programs; Design; Embankments; Field tests; Geotextiles; Guidelines; Material reinforcement; Subgrade (Pavements); Void ratios; Width
• Old TRIS Terms: Test results; Void
• Subject Areas: Design; Geotechnology; Highways; Materials; I33: Other Materials used in Pavement Layers;

Filing Info

• Accession Number: 00488216
• Record Type: Publication
• Source Agency: Alaska Department of Transportation and Public Facilities
• Report/Paper Numbers: FHWA-AK-RD-86-29
• Files: TRIS, USDOT, STATEDOT
• Created Date: Sep 30 1989 12:00AM