DESIGN PROCEDURES FOR AXIALLY LOADED DRILLED SHAFTS

This report represents the culmination of a series of studies that have been conducted on the behavior of axially loaded drilled shafts. Of primary interest are shafts that receive support from the soil along the sides of the shaft. Design procedures established from extensive research on drilled shafts installed in clays, clay-shales, sand, and cemented fine-grained alluvial fan deposits are evaluated and summarized. Revised correlations betwen dynamic penetration resistance and undrained shear strength for clays, and between dynamic penetration resistance and load transfer in sand are presented. The developed computer programs SHAFT1 and BSHAFT were developed to shorten the time involved in computing curves giving ultimate capacity versus depth. Check design problems utilizing SHAFT1 and BSHAFT are included in this report. Uncertainty of in situ soil properties remains a major obstacle in establishing a more generalized design procedure. However, the design procedures presented herein will give satisfactory predictions of shaft ultimate capacities. /FHWA/

  • Supplemental Notes:
    • Sponsored by the Texas State Department of Highways and public transportation, Transportation Planning Division. Study conducted in cooperation with the Department of Transportation, Federal Highway Administration. Research Study title: The Behavior of Drilled Shafts.
  • Corporate Authors:

    University of Texas, Austin

    Center for Highway Research, 200 West 21st Street
    Austin, TX  United States  78712
  • Authors:
    • Quiros, G W
    • Reese, L C
  • Publication Date: 1977-12

Media Info

  • Pagination: 176 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00188963
  • Record Type: Publication
  • Source Agency: Federal Highway Administration
  • Report/Paper Numbers: FHWATX78-1765F Final Rpt., FCP 4053-132
  • Contract Numbers: Res Study 3-5-72-176
  • Files: TRIS, USDOT
  • Created Date: Apr 12 1979 12:00AM