FINITE ELEMENT STUDIES OF AN EMBANKMENT ON SOFT GROUND. NUMERICAL MODELS IN GEOMECHANICS. NUMOG III. PROCEEDINGS OF THE 3RD INTERNATIONAL SYMPOSIUM HELD IN NIAGARA FALLS, CANADA, 8-11 MAY 1989

This article describes the ground conditions and the design of a 2 km long 12 m high embankment constructed to carry a major road (the eastern gateway access road, egar) across a large diameter sewer (the northern outfall sewer) in the London docklands area. It focuses on the use of drained finite element analysis (using the crisp finite element package) to predict ground movements and pore water pressures during construction. The use of stress path testing to establish the applicability of the modified cam clay soil model is emphasized. The general soil profile is 8 m of made ground and alluvial sitts and peats overlying thames gravel and London clay. The alluvium was instrumented at 3 cross sections on both sides of the sewer crossing, and details of the layout of the piezometers, extensometers and inclinometers installed at one cross section are provided. Due to the large number of closely spaced wick drains installed beneath the embankment, only relatively small pore water pressures were generated during construction, and drained analyses were found to provide a much better fit with observed movements than more complicated analyses involving coupled consolidation. The alluvial clay was successfully represented by the modified cam clay model. For the covering abstract of this conference see IRRD 824029.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/1851664254
• Corporate Authors:

  Elsevier Science Publishers

  Crown House, Linton Road
  Barking, Essex IG11 8JU,   England 
• Authors:
  • PICKLES, A R
  • WOODS, R I
• Publication Date: 1989

Language

• English

Media Info

• Pagination: p. 628-35
• Serial:
  • Publication of: Elsevier Applied Science Publishers Limited
  • Publisher: Elsevier Science Publishers

Subject/Index Terms

• TRT Terms: Alluvium; Clay; Conferences; Consolidation; Design; Drainage; Embankments; Evaluation and assessment; Finite element method; Gravel; Mathematical models; Measuring instruments; Motion; Peat; Pore water pressures; Silts; Soil stabilization; Stresses
• Subject Areas: Design; Geotechnology; Hydraulics and Hydrology;

Filing Info

• Accession Number: 00497967
• Record Type: Publication
• Source Agency: Transport and Road Research Laboratory (TRRL)
• ISBN: 1-85166-425-4
• Files: ITRD, TRIS
• Created Date: Sep 30 1990 12:00AM