Varved clays are glacial deposits composed of alternate silt and clay layers. They have strength and permeability characteristics which are more highly anisotropic than other cohesive soils and which complicate evaluation of stability and prediction of consolidation behavior. The report reviews the engineering properties of varved clays and methods of stabilizing soft cohesive foundations beneath embankments. It then describes in detail recommended design procedures for use with embankments constructed on varved clay deposits and presents recommendations for evaluating the soil parameters required. An overall design methodology is presented and site investigation and construction supervision requirements are discussed. The detailed analytical design procedure is demonstrated using an example design problem.

  • Supplemental Notes:
    • See also report dated Jun 75, PB-247 734.
  • Corporate Authors:

    Ladd (Charles C.)

    Tai Bell Spring Road
    Concord, MA  United States  01742

    Federal Highway Administration

    Office of Implementation, 1200 New Jersey Avenue, SE
    Washington, DC  United States  20590
  • Authors:
    • Ladd, C C
    • Foott, R
  • Publication Date: 1977-5

Media Info

  • Pagination: 248 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00169754
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Report/Paper Numbers: FHWA-TS-77-214 Final Rpt.
  • Contract Numbers: DOT-FH-11-8973
  • Files: NTIS, TRIS, USDOT
  • Created Date: Mar 14 1978 12:00AM