Client: Duro Felguera UK Ltd / Alstrom
Ward and Burke provided an outfall solution which consisted of sinking a 4m internal diameter caisson on the bank of the canal.
Alstom and Duro Felguera UK Ltd. are building a new gas-fired 880MW power station in Carrington, Greater Manchester for Carrington Power and will generate enough electricity to supply the needs of around a million homes. It will be one of the most efficient power stations in the UK once finished.
Raw water In-take:
- The method of installation chosen was to provide a liner for the carbon steel pipe by MTBM (microtunnel boring machine) methods.
- A 1200mm diameter concrete sleeve was provided for the 810mm OD steel pipe.
- The MTBM was received in a cofferdam constructed in the Manchester ship canal.
- All welding was carried out to ASME IX specification.
- The tunnel drive was 40m long projecting 15m into the canal from the water’s edge at mean levels.
Final Water Outfall:
- Ward and Burke provided an outfall solution which consisted of sinking a 4m internal diameter caisson on the bank of the canal.
- A 750mm guided auger bore unit places casing in the ground 8m out into the Manchester ship canal.
- The units are recovered using a barge and a dive team.
- The dive team then places the HDPE pipe to the casings and the pipe is fixed to bed of the canal.
- The auger bore drive was 25m long.