Simple plasticity-based prediction of the undrained settlement of shallow circular foundations on clay

Designers have to check that shallow foundations will not penetrate the soil subgrade in a bearing capacity failure or settle excessively. A mobilisable strength design (MSD) solution for the penetration of a circular footing into an incompressible soil bed is presented. The solution is based on plasticity theory, with strain-hardening and non-linear stress-strain characteristics incorporated. The results obtained with MSD were compared with those obtained with finite element analysis using the Strain Dependent Modified Cam Clay soil model. The validity of the MSD solution was evaluated by back-analyses of Bopthkennar and Kinnegar loading tests. These show that MSD can be used to obtain quite accurate estimates of settlements.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/00168505
• Authors:
  • OSMAN, A S
  • Bolton, M D
• Publication Date: 2005-8

Language

• English

Media Info

• Pagination: 435-47
• Serial:
  • Geotechnique
  • Volume: 55
  • Issue Number: 6
  • Publisher: Thomas Telford Limited
  • ISSN: 00168505

Subject/Index Terms

• TRT Terms: Clay; Finite element method; Forecasting; Foundations; Ground settlement; Mat foundations; Mathematical models; Plasticity; Research projects; Saturated soils
• Uncontrolled Terms: Undrained soils
• Geographic Terms: United Kingdom
• ITRD Terms: 4177: Clay; 6490: Finite element method; 132: Forecast; 3377: Foundation; 6473: Mathematical model; 5922: Plasticity; 8557: Research project; 5792: Settlement; 3397: Shallow foundation; 5782: Undrained soil; 8119: United Kingdom
• Subject Areas: Geotechnology; Research; I42: Soil Mechanics;

Filing Info

• Accession Number: 01019846
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• Files: ITRD
• Created Date: Mar 9 2006 8:19AM