LATERAL LOAD BEHAVIOR OF JETTED PILES

Water jetting can be utilized as an effective aid to impact pile driving when hard strata are encountered above the designated tip elevation. When jetting, the area surrounding the pile is first liquefied due to high pore pressure induced by the water jet and subsequently densified with its dissipation. The percolating also creates a filtration zone further away from the pile. Hence, jetting invariably causes substantial disturbance to local soil that results in a noticeable change in the lateral deformation behavior. Presently, no definitive criteria are available to quantify the possible reduction in the lateral strength of driven piles when jetting is employed. This paper presents results of an experimental study performed with model piles installed using impact driving and jetting in a sandy soil (10% clay) compacted to different unit weights under unsaturated and saturated conditions. Beam theory and polynomial approximations are used to convert measured load-strain data to conventional lateral pressure-deformation characteristics (p-y curves). The effect of jetting on the lateral load behavior of piles is presented in terms of non-dimensional empirical curves. An example is also provided to show how results can be utilized to synthesize p-y curves for jetted piles based on available p-y curves for impact-driven piles in the same soil.

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

  American Society for Testing and Materials (ASTM)

  100 Barr Harbor Drive, P.O. Box C700
  West Conshohocken, PA  United States  19428-2957
• Authors:
  • Hameed, R A
  • Gunaratne, M
  • Putcha, S
  • Kuo, C
  • Johnson, S
• Publication Date: 2000-9

Language

• English

Media Info

• Features: Figures; Photos; References; Tables;
• Pagination: p. 358-368
• Serial:
  • Geotechnical Testing Journal
  • Volume: 23
  • Issue Number: 3
  • 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: Foundation soils; Geotechnical engineering; Load transfer; Pile driving; Pile foundations; Soil mechanics; Support piles
• Uncontrolled Terms: Lateral deformation; Lateral loads; Water jetting
• Subject Areas: Geotechnology; Highways; I42: Soil Mechanics;

Filing Info

• Accession Number: 00800402
• Record Type: Publication
• Files: TRIS
• Created Date: Oct 18 2000 12:00AM