SUBGRADE STABILIZATION USING GEOGRIDS. FINAL REPORT

A five mile (8 km) section of Interstate 70, in Washington County, was totally reconstructed. Geogrids were used to stabilize soft subgrade. The high strength and low elongation properties of geogrids make them candidate materials to reduce the cost of stabilizing a soft subgrade by reducing the need for undercutting. Inclinometer monitoring, plate bearing tests, May's meter tests and visual observations were used to evaluate the effectiveness of the geogrids. The geogrids exhibited satisfactory performance and realized a 16.4% cost savings over standard undercutting procedures.

Language

  • English

Media Info

  • Features: Appendices; Figures; Photos; References; Tables;
  • Pagination: 91 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00720205
  • Record Type: Publication
  • Report/Paper Numbers: FHWA-PA-93-015+89-54, Res Proj No. 89-54A
  • Files: TRIS, USDOT, STATEDOT
  • Created Date: Apr 17 1996 12:00AM