Push over piles

A new bridge is being built at Kincardine, Scotland, UK over the Firth of Forth to supplement the existing crossing. The new bridge must follow an oblique 45 degree alignment to the south shore to avoid nesting and migration grounds on the salt flats. An incrementally launched precast deck construction method using a single casting and launch yard was selected. The bridge will have a low profile with a slender 17.5m wide deck. Single column piers will support the deck. The bridge is being designed and built by Morgan Vinci, with consultant Benaim. Total construction time allowed is 29 months to avoid disturbing the birds over more than two winter seasons. The piling process is discussed with reference to the yard piles and bridge piers. The reasons for selecting large piers up to 4m in diameter and 25m long are outlined. Main piling contractor, Seacore, brought a large jack-up barge to site. Piles for the piers have a 25mm thick tubular steel casing. These are driven through the softer ground before the rock socket is formed. Each pile takes about 300 m3 concrete in a single pour.

Language

  • English

Media Info

  • Pagination: 24-7
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 01089695
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • Files: ITRD
  • Created Date: Apr 5 2007 12:24PM