STRAIN WEDGE MODEL CAPABILITY OF ANALYZING BEHAVIOR OF LATERALLY LOADED ISOLATED PILES, DRILLED SHAFTS, AND PILE GROUPS

This paper demonstrates the application of the strain wedge (SW) model to assess the response of laterally loaded isolated long piles, drilled shafts, and pile groups in layered soil (sand and/or clay) and rock deposits. The basic goal of this paper is to illustrate the capabilities of the SW model versus other procedures and approaches. The SW model has been validated and verified through several comparison studies with model- and full-scale lateral load tests. Several factors and features related to the problem of a laterally loaded isolated pile and pile group are covered by the SW model. For example, the nonlinear behavior of both soil and pile material, the soil-pile interaction (i.e., the assessment of the p-y curves rather than the adoption of empirical ones), the potential of soil to liquefy, the interference among neighboring piles in a pile group, and the pile cap contribution are considered in the SW model analysis. The SW model analyzes the response of laterally loaded piles based on pile properties (pile stiffness, cross-section shape, pile-head conditions, etc.) as well as soil properties. The SW model has the capability of assessing the response of a laterally loaded pile group in layered soil based on more realistic assumptions of pile interference as compared to techniques and procedures currently employed or proposed.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/32947845
• Corporate Authors:

  American Society of Civil Engineers

  1801 Alexander Bell Drive
  Reston, VA  United States  20191-4400
• Authors:
  • Ashour, Mohamed
  • Norris, G
  • Pilling, P
• Publication Date: 2002-7

Language

• English

Media Info

• Features: Figures; References;
• Pagination: p. 245-254
• Serial:
  • Journal of Bridge Engineering
  • Volume: 7
  • Issue Number: 4
  • Publisher: American Society of Civil Engineers
  • ISSN: 1084-0702
  • Serial URL: http://ojps.aip.org/beo

Subject/Index Terms

• TRT Terms: Bridge foundations; Clay; Lateral supports; Layered soils; Liquefaction; Load tests; Machine shafts; Pile caps; Pile groups; Properties of materials; Prototype tests; Rocks; Sand; Scale models; Stiffness; Support piles
• Uncontrolled Terms: Strain wedge model
• Subject Areas: Bridges and other structures; Design; Geotechnology; Highways; Materials; I24: Design of Bridges and Retaining Walls; I42: Soil Mechanics;

Filing Info

• Accession Number: 00927607
• Record Type: Publication
• Files: TRIS
• Created Date: Jul 2 2002 12:00AM