The construction of abutments for the bridge carrying the Kings Lynn southern bypass over the tidal river Great Ouse in Norfolk is described. The bridge supports rest on alluvial soils and flood banks having a low factor of safety. Shallow bank seat type abutments were supported on piles. Precautions were taken to minimise the horizontal movement of the ground. The area behind and in front of the abutment was filled to the greatest height possible and left to consolidate for 275 days; a 1m thick surcharge was placed in the abutment area and consolidation took place for a further 275 days. 750 mm diameter holes were augered down through soft clay and lined with a temporary casing. The 500 mm diameter steel casings of the permanent piles were pitched in the prebored holes and driven to the specified level. The space between the pile and the temporary lining was filled with bentonite slurry and the lining was withdrawn. /TRRL/

  • Corporate Authors:

    Department of the Environment

    Room 1640 Lunar House, 40 Wellesley Road
    Croydon CR9 2EL,   England 
  • Publication Date: 1976-6


  • English

Media Info

  • Features: Figures;
  • Pagination: p. 13-15
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00149068
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • Report/Paper Numbers: Analytic
  • Files: ITRD, TRIS
  • Created Date: Jun 22 1977 12:00AM