AN INNOVATIVE METHOD OF LOAD TESTING DEEP FOUNDATIONS

This paper presents an innovative method of load testing deep foundations that estimates the pile capacity directly. By placing and monitoring sensitive force sensors near a pile head, a force-time curve can be generated when an impact load is applied. The unique stages of the impact event are captured in a force-time plot from which the ultimate pile capacity is directly estimated. Similar sensors can be placed at the pile toe to estimate end bearing. Ancillary equipment, consisting of the same force sensors sandwiched between 2 thin plywood boards, can be placed on top of production piles during driving for capacity estimates. Pile capacities derived have been found to be in reasonably good agreement with values from 2 static load tests. Information on pile integrity during driving is also provided.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/01496115
• Corporate Authors:

  ASTM International

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  West Conshohocken, PA  United States  19428-2959
• Authors:
  • Ooi, PSK
  • Frederick, L L
• Publication Date: 2003-6

Language

• English

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 210-218
• Serial:
  • Geotechnical Testing Journal
  • Volume: 26
  • Issue Number: 2
  • Publisher: ASTM International
  • ISSN: 0149-6115
  • EISSN: 1945-7545
  • Serial URL: https://www.astm.org/products-services/standards-and-publications/geotechnical-testing-journal.html

Subject/Index Terms

• TRT Terms: Bearing capacity; Bridge engineering; Foundation engineering; Load tests; Pile driving; Pile foundations; Structural supports; Support piles
• Subject Areas: Geotechnology; Highways; I42: Soil Mechanics;

Filing Info

• Accession Number: 00943696
• Record Type: Publication
• Files: TRIS
• Created Date: Jun 11 2003 12:00AM