EDS

Company: British Nuclear Group (Sellafield Ltd)

Location: Capenhurst Works, Chester

Project Value: £1,000,000

Project Type: Decontamination, Dismantling & Demolition of Building 200/400

Project Scope:Decontamination of Cells and concrete slabs, Dismantling of Cell structures and Demolition of Building 200/400.

The largest nuclear contaminated demolition project in the UK

A project to remove and de-plant the clean and contaminated equipment prior to demolition, dismantling of cells within the building, removal and disposal of asbestos and asbestos contaminated items, removal of remaining redundant equipment prior to demolition, demolition of buildings down to floor slab levels (F, G, H Bays of Building 200/400) Civil remedial works to slab Installation/completion of new gable wall and Landscaping on completion.

There were radiological restrictions to the project, particularly when dealing with the contaminated plant, equipment & steelwork. eds worked closely with BNG and the Health Monitoring team to ensure that all contamination was dealt with correctly in accordance with BNG requirements.

The site remained live during the 8 month decontamination and demolition programme with adjacent structures being occupied which required careful and controlled separation works to enable the main structure to be demolished by remote high reach demolition techniques. eds overcame these issues and delivered the project successfully on time and on budget without incident.

The work scope also included the installation of bracing supports and construction of a permanent dividing wall to the newly created gable elevation following demolition.

The new gable elevation was fitted with new columns and rails which were clad with new steel profiled sheeting to match the existing scheme. Flashings and rainwater goods were also fitted as required.

All existing concrete floor slabs were cleaned utilizing shot blasting methods to remove hotspots of contamination. And the area was handed back to British Nuclear Group.