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Settlement study : final report.

File Language:
English


Details

  • Creators:
    Walters, William C.
  • Corporate Creators:
    Louisiana. Department of Highways. Research and Development Section
  • Corporate Contributors:
    United States. Federal Highway Administration
  • Subject/TRT Terms:
  • Publication/ Report Number:
    Research Report No. 159
  • Resource Type:
    Tech Report
  • Geographical Coverage:
    Louisiana
  • Corporate Publisher:
    Louisiana. Department of Highways. Research and Development Section
  • Abstract:
    This report covers field observations of several medium and high embankments' settlement along Interstate Highways 12 and 20. The predictive settlements from laboratory tests (consolidation tests) are given in an interim report published in July, 1980. The procedures for computing the amount of settlement were standard ones, only the number of samples per boring varied from the normal number that is usually run. The "time of settlement" computations included both a procedure developed by Ray, Covington and Arman reported in Louisiana State University (LSU) Engineering Bulletin 82 as well as the regular method used by Louisiana Department of Transportation and Development (La. DOTD) at the time. Essentially, this research project is intended to determine whether the LSU method is a better procedure than the one the La. DOTD uses, i.e., whether the former comes closer to predicting the actual time of settlement than the latter.

    The results, for the most part, are rather disappointing in that the actual settlement curves did not follow very closely the predictive curves using both the LSU and the La. DOTD methods. The closest that the actual settlement curve followed the predictive curves were for those embankments that were subject to very little settlement.

    In the opinion of the writer, the discrepancy can be ascribed to one or any combination of three usual factors, (1) the lack of sample saturation, (2) sample handling, and (3) disturbance through the sample procedure (core diameter was too small).

  • Format:
    PDF
  • Funding:
    Research Project No. 64-1S
  • Collection(s):
  • Main Document Checksum:
    urn:sha-512:f2b5294f3d4c7a852bd57ee6664fe4fac4791c0adcf8dda97dc25c202669c016c7a88ea87e28e93424b9cf465d9a6dc88bfdf898c914a97fa30c8683e206a15f
  • Download URL:
  • File Type:
    Filetype[PDF - 1.92 MB ]
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