LATERAL LOAD TESTS OF A DRILL SHAFT IN CLAY

The behavior of a laterally loaded drilled shaft in clay was investigated by conducting a lateral load test on an instrumented shaft. Lateral deflections, shaft rotation, and soil resistance were measured for each applied load. Dial gages were used to measure lateral deflection, and the shaft rotation was determined by means of an inclinometer. Pneumatic pressure cells were installed in the shaft at various depths to measure the soil resistance. The applied lateral load was measured by using a strain-gage load cell. Structural failure of the shaft occurred before the soil failed and prevented determination of the ultimate lateral soil resistance. However, the ultimate soil reactions predicted by several analytical procedures were compared with the soil reaction calculated from the maximum recorded soil resistance. Also, as ultimate lateral load for the test shaft was predicted by various analytical methods, and a comparison was made between the maximum recorded load and the various predicted ultimate loads. Finally, a comparison was made between two ultimate test loads reported in the technical literature and the ultimate loads predicted by the analytical methods. (Authors)

• Record URL:
  http://onlinepubs.trb.org/Onlinepubs/trr/1979/733/733-007.pdf
• Record URL:
  https://scholar.google.com/scholar_lookup?title=LATERAL+LOAD+TESTS+OF+A+DRILL+SHAFT+IN+CLAY&author=H.+Coyle&author=R.+Bartoskewitz&author=V.+Kasch&publication_year=1979
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• Supplemental Notes:
  • Publication of this paper sponsored by Committee on Foundations of Bridges and Other Structures. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved
• Authors:
  • Coyle, Harry M
  • Bartoskewitz, Richard E
  • Kasch, Vernon R
• Conference:
  • 58th Annual Meeting of the Transportation Research Board
  • Location: Washington District of Columbia, United States
  • Date: 1979-1-15 to 1979-1-19
• Publication Date: 1979

Media Info

• Media Type: Print
• Features: Figures; References; Tables;
• Pagination: pp 44-51
• Monograph Title: Mechanics of track support, piles and geotechnical data
• Serial:
  • Transportation Research Record
  • Issue Number: 733
  • Publisher: Transportation Research Board
  • ISSN: 0361-1981

Subject/Index Terms

• TRT Terms: Clay; Loads; Soil mechanics
• Uncontrolled Terms: Drilled shafts
• Old TRIS Terms: Lateral movement
• Subject Areas: Geotechnology; Highways;

Filing Info

• Accession Number: 00315298
• Record Type: Publication
• ISBN: 0309029880
• Files: TRIS, TRB
• Created Date: Sep 16 1980 12:00AM