EFFECTS OF PILE SETUP ON PILE DESIGN AND CONSTRUCTION-A CASE STUDY. IN: CURRENT PRACTICES AND FUTURE TRENDS IN DEEP FOUNDATIONS

The twin I-75 bridges in Florida over the Peace River were each planned to be widened from 2 lanes to 3. Because of the need to maintain traffic flow, the final design involved erection of a new bridge between the existing twin spans and removal of the existing northbound bridge. The soil conditions generally consisted of sandy soils over the boring depths with some interspersed clay seams. During pile driving, a significant number of both test piles and production piles failed to reach the required capacity during initial drive at the tip depth predicted from analyses. Rather than using more or longer piles, the effect of time based pile set-up on capacity was investigated. An extensive dynamic testing program was used to determine the capacity at end-of drive, as well as after re-strike. The elapsed time allowed for re-strike varied from hours to days and provided a general guide for the amount of time required for sufficient capacity increase. Capacity increase varied from 178 kN (20 tons) to 1.8 MN (200 tons) depending upon the amount of time allowed for pile set and the soil type at the pile location.

• Record URL:
  https://doi.org/10.1061/40743(142)4
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/0784407436
• Corporate Authors:

  American Society of Civil Engineers

  Geo-Institute
  Reston, VA  United States  20191-4400
• Authors:
  • Erbland, P J
  • McGillivray, T
• Conference:
  • Contributions in Honor of George G. Gobel
  • Location: Los Angeles California, United States
  • Date: 2004-7-27 to 2004-7-31
• Publication Date: 2004-7

Language

• English

Media Info

• Features: Figures; References;
• Pagination: p. 66-76
• Monograph Title: CURRENT PRACTICES AND FUTURE TRENDS IN DEEP FOUNDATIONS
• Serial:
  • ASCE Geotechnical Special Publication
  • Issue Number: 125
  • Publisher: American Society of Civil Engineers

Subject/Index Terms

• TRT Terms: Bridge decks; Bridge engineering; Bridges; Cast in place structures; Clay; Cracking; Design build; Pile foundations; Spalling; Traffic flow; Width
• Geographic Terms: Florida
• Subject Areas: Bridges and other structures; Design; Geotechnology; Highways; I24: Design of Bridges and Retaining Walls;

Filing Info

• Accession Number: 00987882
• Record Type: Publication
• ISBN: 9780784407431
• Files: TRIS
• Created Date: Mar 9 2005 12:00AM