RIGID PIPE PROOF TESTING UNDER EXCESS OVERFILLS WITH VARYING BACKFILL PARAMETERS: SECTION V (VOLUME 5)--EFFECTIVE DENSITIES CALCULATED FROM INTERPOLATED, MODIFIED, MEASURED NORMAL TRACTIONS

"Effective density" profiles were calculated from normal tractions interpolated between soil stressmeters at the outer periphery of the Cross Canyon, reinforced concrete culvert. "Effective density" is the hypothetical density of an embankment material required to produce, under hydrostatic conditions, a measured soil stress under the measured overfill at the meter. The normal tractions from which these "densities" have been derived have been interpolated between reading of soil stressmeters at the soil-concrete interface and then modified to produce static equilibrium in a horizontal direction. Static equilibrium in the veritical and rotational directions has been achieved through the use of synthesized tangential tractions.

  • Supplemental Notes:
    • Work described herein was performed in conjunction with the research project entitled, "Rigid Pipe Proof Testing Under Excess Overfills Using Varying Backfill Conditions," in cooperation with the Department of Transportation, Federal Highway Administration.
  • Corporate Authors:

    California Department of Transportation

    Office of Structure Design, Division of Project Development
    Sacramento, CA  United States  95807
  • Authors:
    • Davis, R E
    • Semans, F M
    • Spannagel, D W
    • Bacher, A E
  • Publication Date: 1979-2

Media Info

  • Pagination: n.p.

Subject/Index Terms

Filing Info

  • Accession Number: 00311769
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Report/Paper Numbers: FHWA/CA/SD-79/07 Intrm Rpt., FCP 45I2-172
  • Contract Numbers: D-4-133
  • Files: TRIS, STATEDOT
  • Created Date: Jun 26 1980 12:00AM