CONSTRUCTION OF THE I-40 REINFORCED EARTH EMBANKMENT

The materials construction procedures and techniques used in building reinforced earth structures are described, and the site conditions on the 4-mile section of Interstate 40 are briefly reviewed. Three basic reasons for failure are given which relate to the permeable colluvial veneer, the impermeable, underlying clay shale, the differences in permeability, and the perched water. The successful functioning of the Reinforced Earth depends on sufficient friction between the soil and the reinforcing strips to prevent slippage, and sufficient density of reinforcing strips in the soil mass to prevent failure. Galvanized steel or aluminum strips are used as the reinforcement in the soil mass. The essential elements of the construction consisted of facing elements, granular backfill, reinforcing strips, and cork or polyfoam filler.

Media Info

  • Features: Figures;
  • Pagination: p. 24-32

Subject/Index Terms

Filing Info

  • Accession Number: 00096249
  • Record Type: Publication
  • Report/Paper Numbers: Bulletin No. 40
  • Files: TRIS
  • Created Date: Jul 15 1975 12:00AM