Volume 9 issue 1 Nuclear Future
JV nets billion-pound Sellafi eld contract
Sellafi eld Ltd has awarded a contract to the Morgan Sindall Arup joint venture to provide a range of essential infrastructure asset services to the Sellafi eld site. The Infrastructure Strategic Alliance contract, worth up to a potential £1.1 billion, will run for an initial fi ve-year period but could be extended for a further 10 years. Signifi cant progress has already been made in setting up the collaborative structure that will deliver anticipated benefi ts to the Sellafi eld site and the wider community. This includes: • Commitment to securing a permanent base in West Cumbria • Commitment to working with local partners to deliver an apprentice training scheme in West Cumbria
• Early engagement with local stakeholders in preparation of a socio-economic plan that will identify the Alliance’s commitments to West Cumbria
George Beveridge, Nuclear Management Partners’ Deputy Managing Director for Sellafi eld Ltd, said: “I’m particularly pleased to see that much good work has already taken place in fi nding a West Cumbrian location for the workforce, engaging local partners in addressing training needs and understanding the needs of our local community. “We’ve got off to a good start. It’s important that we now maintain that momentum.” Working in close partnership with Sellafi eld Ltd, Morgan Sindall and Arup will deliver a programme management and project delivery service for all infrastructure assets, including: • Steam generation and on-site distribution; • Electricity generation and on-site distribution; • Water supply to site and on-site distribution; • Compressed air generation and distribution; • Civil infrastructure supporting pipes and cables; • Drainage network and sewerage treatment plant; • Roads, bridges and car parks; and • General building facilities such as canteens and laundry.
It was one of the most technically challenging crane lifts ever performed on the Sellafi eld site. Space was extremely tight, the load was heavy and awkward, and the consequences of failure didn’t bear thinking about. However someone did think about potential failure and months of work were carried out to ensure the lift was a total success. Project manager Steve Harnwell said: “It was an immense challenge
for the team to plan and get this job approved. Failure wasn’t an option – we had to lift a 50te pipebridge into place in order to link a 60-year-old legacy pond with a new sludge storage facility. “The job involved convincing ourselves, the safety experts and our
Frazer-Nash help life extension at Oldbury Frazer-Nash has completed work at Oldbury power station as part of Magnox’s Generation Optimisation programme, helping the site to achieve and fulfi l a four-year licence extension. The project follows extensive safety case work by the consultancy on the graphite cores at both Wylfa and Oldbury since 2003. Based at the Oldbury site, the Frazer-Nash team supported Magnox’s
ongoing structural integrity monitoring which included helping with the ongoing development of the safety case and assessing this during shutdowns at the site in order to reduce lost time. The team also analysed the results of its monitoring work to assess the safety case on an on-going basis, extending the methodology of the monitoring process to include extreme load cases where requested by the regulator. As a result of the work undertaken, a four-year licence extension
was granted for Reactor 1 and an extension of two-and-a-half years for Reactor 2, producing an additional 7.4 terrawatt hours of electricity.
safety regulators that we could safely build one of the world’s largest mobile cranes in the heart of the Sellafi eld site. Just fi nding enough space between the buildings was a challenge, never mind lifting the pipebridge over the top of neighbouring nuclear facilities. “It was a mammoth task, carried out with an enormous crane, which had to be executed with surgical precision. Prior to the actual lift we had a dummy run off site to check that the whole lifting operation could physically be done. The teamwork was totally professional and I’ve nothing but praise for what is a landmark achievement in the decommissioning programme.” The 30-metre-long pipebridge will be used to transfer radioactive sludge from the First Generation Magnox Storage Pond (FGMSP) to the new Sludge Packaging Plant (SPP1) for interim storage. The FGMSP is one of the priority decommissioning projects at Sellafi eld. The legacy sludge has to be retrieved from the pond fl oor to allow the pond to be emptied of nuclear fuel and the facility decommissioned. Installation of the pipebridge will not only allow retrievals to commence in 2014 but will provide a valuable back-up emergency route for the FGMSP pond, prior to it being emptied. Ground preparations for the crane required 40m3 of concrete foundations to be poured to provide a stable base for the lifting operations. The 1200te crane travelled to site on a number of wagons. A second 100te crane was used to prepare the site and build the larger crane. Mark Steele, head of programme, Sellafi eld, for the NDA, said: “The crane lift shows what good work can be achieved by challenging norms and expectations. Assembling the pipebridge off site and putting arrangements for the crane lift in place has saved signifi cant work on site and allowed the task to be completed some 18 months earlier than scheduled.”
Sludge retrieval receives a lift
Industry news 19
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