Push over piles

This article describes the construction process for a new road bridge over the Firth of Forth estuary at Kincardine, east Scotland. The bridge is being built on an oblique alignment to the shore to avoid disturbing environmentally sensitive areas and an incrementally launched precast deck construction method was chosen to reduce environmental impact further, using a single casting and launch yard. Single column piers will support the deck, requiring wide and deep piles to key into bedrock for stability. The central spans of the bridge will have the largest piers and piles, with reinforcement to resist ship impact. Piles have also been necessary at the casting yard to take the pressure of the launch process. Piling construction has involved a large jack-up barge with a reverse circulation rig on board, from which a tubular steel casing is driven through the softer ground. The rock socket is then formed, a reinforcement cage is inserted and concrete pumped in from a work platform supported on the pile casing.


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Filing Info

  • Accession Number: 01051145
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • Files: ITRD
  • Created Date: Jun 11 2007 1:30PM