FAILURE MECHANISMS IN MODEL REINFORCED EARTH WALLS

An experimental study of model reinforced earth retaining walls is reported. Also, a method of analysis is assessed in light of the observed mechanisms that occur at collapse. Experimental models discussed include materials and apparatus, and a model reinforced earth wall. Several series of tests were performed. Parameters that varied were the length, width, and vertical spacing of the reinforcement. Radiographic evidence showed that the walls could be divided into three broad categories as follows: Walls within dense reinforcement; walls with short, wide reinforcement; and walls with long, thin reinforcement. The analysis developed used the sample Coulomb method of considering block movements and was based upon the failure mechanism observed for walls with short, wide reinforcement. The radiographic method proved very powerful in showing up failure mechanisms on which calculations could be based. The method of analysis developed was reasonably successful in modeling the changing failure mechanisms as reinforcement parameters were varied. The work shows that in the design of full-scale walls it is not sufficient to assume that a failure surface will be an at angle to the vertical; there may be a more critical surface.

  • Availability:
  • Corporate Authors:

    Foundation Publications Limited

    7 Ongar Road
    Brentwood CM15 9AU, Essex,   England 
  • Authors:
    • SMITH, AKC
    • Wroth, C P
  • Publication Date: 1978-9

Media Info

  • Features: Figures; References;
  • Pagination: p. 43-45
  • Serial:
    • GROUND ENGINEERING
    • Volume: 11
    • Issue Number: 6
    • Publisher: EMAP CONSTRUCT LIMITED
    • ISSN: 0017-4653

Subject/Index Terms

Filing Info

  • Accession Number: 00183677
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Dec 12 1978 12:00AM