Werrington Grade Separation
Client: Network Rail
Principal Contractor: Morgan Sindall
Value of contract: TBC
Description of Works:
Supply and installation of ZZ26-700 steel sheet piles in crimped pairs to form 2 No permanent retaining walls to form the South Ramp area of the new grade separated junction being constructed adjacent to the East Coast Mainline at Werrington, north of Peterborough.
The sheet piles were installed in between the existing East Coast Mainline and Stamford lines, using 2 No telescopic leader rigs – 1 No to pre-auger in advance of pile installation, with pile installation being undertaken by the 2nd leader rig following. An attendant 70-tonne telescopic crawler crane was used to offload and distribute the sheet piles.
The majority of the works were completed under ALO conditions, with a small number of areas having to be done under possession and isolation.
In addition to the sheet piles, 12 No 356 x 368 x 202 steel universal columns as part of a king post wall, using the same telescopic leader rigs to bore holes and then install casings and king posts.
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