REINFORCED EARTH ABUTMENTS AND APPROACH RAMPS FOUNDED ON COMPRESSIBLE SOILS AT BURTON-ON-TRENT

In this paper the construction of a new flyover consisting of a three span concrete bridge, four approach ramps and two earth abutments, in burton on Trent is described. The construction procedure was to build the abutments early in the contract and allow the large initial settlements of the compressible clay foundation soils to occur, prior to deck construction. Monitoring the settlement during construction took place. An initial estimate of 100 mm settlement under total dead loads was made and later revised to 300 mm. Deck construction began in October 1985, and the project programme required the flyover to be operational within six weeks even though settlement was not completed. Monitoring showed: (1) maximum settlement occurred not at the abutment face but some eight metres behind; (2) the present differential settlement between the abutment and mid point of the approach ramp was approximately 1.0 percent, and (3) the present maximum differential settlement over a 9 or 10 metre length of wall was approximately 1.4 per cent. A panel joint survey was carried out to correlate the known differential settlement with panel closure. The surveys showed, together with the settlement profiles, that the structure could withstand more than the significant distortions which have taken place.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/02656868
• Corporate Authors:

  INSTITUTION OF HIGHWAYS & TRANSPORTATION

  6 ENDSLEIGH STREET
  LONDON,   United Kingdom  WC1H 0DZ
• Authors:
  • WORRALL, P K
• Publication Date: 1989-3

Language

• English

Media Info

• Pagination: p. 5-8
• Serial:
  • HIGHWAYS & TRANSPORTATION
  • Volume: 36
  • Issue Number: 3
  • Publisher: INSTITUTION OF HIGHWAYS & TRANSPORTATION
  • ISSN: 0265-6868

Subject/Index Terms

• TRT Terms: Abutments; Bearing capacity; Bridge decks; Clay; Compressibility; Concrete; Earthwork; Embankments; Ground settlement; Pressure; Subsoil
• ITRD Terms: 3424: Abutment; 3085: Bearing capacity; 3455: Bridge; 3482: Bridge deck; 4177: Clay; 5905: Compressibility; 4755: Concrete; 3655: Construction; 9011: Design (overall design); 3653: Earthworks; 2801: Embankment; 4053: Geology; 433: Interchange; 6136: Measurement; 4349: Peat; 5412: Pressure; 4794: Reinforced concrete; 3349: Reinforced earth; 5792: Settlement; 2930: Subsoil
• Subject Areas: Geotechnology;

Filing Info

• Accession Number: 00498077
• Record Type: Publication
• Source Agency: Transport and Road Research Laboratory (TRRL)
• Files: ITRD, TRIS, ATRI
• Created Date: Sep 30 1990 12:00AM