A NUMERICAL STUDY OF DYNAMIC CAVITY EXPANSION. PROCEEDINGS OF THE SIXTH INTERNATIONAL CONFERENCE ON NUMERICAL METHODS IN GEOMECHANICS, 11-15 APRIL 1988, INNSBRUCK, AUSTRIA. VOLUMES 1 - 3

Recent advances in one-dimensional wave equation analysis of pile driving have emphasized the importance of radiation damping. At the base of the pile, radiation damping will occur during plastic penetration of the pile tip. This will entail that the bearing pressure will be greater than the ultimate static value, even in a non-viscous soil. In order to assess likely magnitudes of the dynamic bearing capacity, finite element analyses of cavity expansion have been undertaken at high expansion rates. Results are presented for spherical cavity expansion at different rates in cohesive soil. It is shown that the peak internal pressure is a function of the initial acceleration level and the rate of cavity expansion, while the limiting pressure at large strain is a function of cavity expansion rate. The consequences of the results for pile driving analysis are discussed. (TRRL)

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/906191809X
• Corporate Authors:

  AA Balkema

  P.O. Box 1675
  Rotterdam,   Netherlands  BR-3000
• Authors:
  • RANDOLPH, M F
  • PENNINGTON, D S
• Publication Date: 1988

Media Info

• Features: References;
• Pagination: p. 1715-21
• Serial:
  • Publication of: Balkema (AA)
  • Publisher: AA Balkema

Subject/Index Terms

• TRT Terms: Bearing capacity; Cohesive soils; Conferences; Construction; Damping (Physics); Dynamics; Expansion; Finite element method; Foundations; Support piles
• Uncontrolled Terms: Cavities
• ITRD Terms: 3085: Bearing capacity; 5738: Cavity; 4157: Cohesive soil; 8525: Conference; 3655: Construction; 5559: Damping; 5473: Dynamics; 6720: Expansion; 6490: Finite element method; 3377: Foundation; 3399: Pile
• Subject Areas: Construction; Geotechnology; Highways;

Filing Info

• Accession Number: 00492698
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• ISBN: 90-6191-809-X
• Files: ITRD, TRIS
• Created Date: Mar 31 1990 12:00AM