MODELLING PRE-FAILURE DEFORMATION BEHAVIOUR OF REINFORCED SOIL WALLS

The dominant form of failure in a wall reinforced by extensible geotextiles is the deformation mode, since it is unlikely that ultimate failure will be critical. A reliable method for displacement prediciton is thus the key factor in the analysis and design of reinforced soil structures. Centrifuge modelling was conducted on a series of small-scale, multi-layered reinforced walls, of prototype height 6-15 m, constructed in dry sand and subjected to a vertical surcharge load. Vertical and horizontal displacements of the wall were measured by transducers. Photographic records of markers placed within the fill allowed determination of deformation mechanisms. Two different model reinforcements were used in each of two walls, and all of these were instrumented to measure tension. Numerical back-analyses of these walls provided insight into reinforced wall behaviour, and validated the centrifuge model test data. Significant physical and numerical data are compared and discussed. (A)

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/00168505
• Corporate Authors:

  Thomas Telford Limited

  London,   United Kingdom 
• Authors:
  • SPRINGMAN, S M
  • BALACHANDRAN, S
  • JOMMI, C
• Publication Date: 1997-8

Language

• English

Media Info

• Features: References;
• Pagination: p. 653-63
• Serial:
  • GEOTECHNIQUE
  • Volume: 47
  • Issue Number: 3
  • Publisher: Thomas Telford Limited
  • ISSN: 0016-8505

Subject/Index Terms

• TRT Terms: Deformation; Forecasting; Material reinforcement; Reinforcing materials; Retaining walls; Soils; Tests
• ITRD Terms: 5595: Deformation; 132: Forecast; 3471: Reinforcement (in mater); 3359: Retaining wall; 4156: Soil; 6255: Test
• Subject Areas: Geotechnology;

Filing Info

• Accession Number: 00741109
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• Files: ITRD
• Created Date: Oct 30 1997 12:00AM