The construction of a motorway bridge over the broad Sipoo bay which has difficult foundation conditions, involved an interesting geotechnical task of research and planning. The soil at the site of the bridge consists of soft organic mud to a depth of 5-7 M. Below this extending down to a depth of 20-27 M, there is a bed of muddy clay. Underlying this bed is a 10 M thick layer of sticky clay followed by friction soil down to bedrock which in the middle of the bay lies between the levels -37 and -57. Contrary to what might have been expected, a great number of driven piles (30 X 30 cm2) proved to be less expensive than a small number or bored piles with a large diameter. The different stages of planning and construction are described along with the factors affecting the final choice of foundation method. /TRRL/

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  • Corporate Authors:

    Svenska Vag-Och Vattenbyggaren Riksforband

    Regeringsgaten 98
    S-11139 Stockholm,   Sweden 
  • Authors:
  • Publication Date: 1976

Media Info

  • Features: Figures; References; Tables;
  • Pagination: p. 47-51
  • Serial:
    • Vag-Och Vattenbyggaren
    • Volume: 22
    • Issue Number: 8/9
    • Publisher: Svenska Vag-Och Vattenbyggaren Riksforband
    • ISSN: 0042-2177

Subject/Index Terms

Filing Info

  • Accession Number: 00145442
  • Record Type: Publication
  • Source Agency: Swedish National Road and Traffic Research Institute
  • Files: ITRD, TRIS
  • Created Date: Apr 27 1977 12:00AM