REINFORCED EARTH--DESIGN AND CONSTRUCTION

An engineering material (reinforced earth) is described which can be used in high quality construction with substantially reduced costs. It consists of a designed structure whereby soil is internally reinforced with metal strips so as to form a friction transfer mechanism between soil and reinforcement. This frictional transfer allows the soil strip mass to exhibit tensile strength under exterior imposed loadings. Details of the design are given, and a design example is presented. Shearing stresses due to earth pressure behind the wall and external loads above or inclined to the wall must be considered in design. Aspects that require consideration include external stability of the structure, settlement, and the drainage of the designed structure. The most difficult element in the construction of Reinforced Earth Structures is the foundation preparation where excavations are required to provide adequate resistance to to sliding in talus slopes or landslide areas. Several case histories are described which illustrate this point. Current work is reported on the effect of cohesive soils on the strip earth strength if this type of material were used as a backfill material. Sturctural life of the reinforcing strips, and different steels and aluminum alloys are also being studied. The life of Reinforced Earth Structures is of 4 categories: dry or partially submerged temporary or permanent structures. Experimental work has been done on different construction procedures: techniques requiring scuba divers; and dry-building of sections with a rigid frame holding the facing and strips in place, and in which each unit is lowered into place with a coupling arrangement, and then hydraulically backfilling with a suitable material.

  • Supplemental Notes:
    • Proceedings of the Ohio River Valley Soils Seminar, held October 5, 1973. This conference was sponsored by the Kentucky Soil Mechanics and Foundations Group of the American Society of Civil Engineers.
  • Corporate Authors:

    American Society of Civil Engineers

    345 East 47th Street
    New York, NY  United States  10017-2398
  • Authors:
    • Gedney, D S
    • Walkinshaw, J L
  • Publication Date: 0

Media Info

  • Features: Figures;
  • Pagination: 9 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00097154
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Sep 10 1976 12:00AM