A NEW CONCEPT IN EMBANKMENT DESIGN AND CONSTRUCTION

The concept and its potentialities are discussed of a design for construction of embankments on soft, unstable foundations. The far from ideal conditions operating in the case of soft muck requires a "floating" foundation constructed by balancing the overlying structure by hydrostatic forces. The problem of localized failures and subsidence, has not been clearly solved, or even defined. Theoretical studies are reviewed which indicate the near impossibility of theoretical analysis of the problem of stress distribution. Assuming that a stable embankment structure has been designed with a wide enough base to distribute the load over a wide area, and the bearing capacity of the underlying material is extremely low, the effect is considered of loading on the foundation. If use is made of backfill material which would in no case reach plastic state but would have a "bridging" effect (details are given of material), as the embankment load is added to this material, frictional forces are created among the backfill material. This is turn will create an enormous resistance to lateral shear movements. Stresses induced by the embankment, unless hydrostatic forces exist, will result in stressing the original material in a horizontal direction below the bottom level of the backfill material. However, in the case of granular material the stress is distributed in horizontal and vertical directions starting immediately under the ground level. The material at ten toes of the embankment has x feet of overburden which will, to some extent provide resistance to the production of mud waves.

  • Supplemental Notes:
    • Presented at the Shell Users Conference, Point Clear, Alabama, August 1965
  • Corporate Authors:

    Louisiana State University and Agriculture & Mechanical College, Baton Rouge

    Department of Civil Engineering
    Baton Rouge, LA  USA  70803
  • Authors:
    • Arman, A
  • Conference:
  • Publication Date: 1965-8

Media Info

  • Features: Figures; References;
  • Pagination: p. 1-12

Subject/Index Terms

Filing Info

  • Accession Number: 00083777
  • Record Type: Publication
  • Files: TRIS
  • Created Date: May 29 1975 12:00AM