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BP Dalmeny to Kinneil Pipeline Excavation

Client: AmecFW

Value: £700k

Contract: BP Conditions of Contract

Project Description:

Excavation to expose the incoming 30“ main line directly outside the Kinneil Plant, Grangemouth . The work involved the installation of a temporary works cofferdam to allow hand & mechanical excavation to expose the main pipe. Once exposed this allows the pipe to be inspected and repaired. The pipe itself runs directly under the privately owned Kinneil historic railway line which has meant this project has not only been done under a time constraint, but geographically and environmentally very challenging .

Works Included:

  • Removal of large sections of railway and trees
  • Removal of Badger sets under strict supervision
  • Installation of temporary piles & permanent galvanised piles to allow access to the pipe
  • Excavation of the rail embankment to expose the existing Forties pipeline—250m³ of soil. Carried out by suction excavation
  • Excavation of rock around the existing pipeline under strict vibration guidelines
  • Construction of new husker walls, gabion baskets & delta lock walls for slope stabilisation
  • Backfilling of excavation once pipework has been signed off by inspection
  • Construction of new drainage to the railway line
  • Relaying of the railway lines to match the existing profile
  • Survey of the railway line during a 6 month settlement period after the works are complete