Construction work

Tender description

The scope of the works is for the construction of a new shielded Intermediate Level Waste (ILW) drum store extension and an unshielded waste store extension for shielded waste containers to the existing Dounreay Cementation Plant (DCP) complex. The scope of the works is for the construction of a new shielded Intermediate Level Waste (ILW) drum store extension and an unshielded waste store extension for shielded waste containers to the existing Dounreay Cementation Plant (DCP) complex, comprising of: — procurement and construction of a large scale reinforced concrete store, construction of a fully clad portal framed “lean to” structure with integral shield wall, substructure and external walls to provide the required radiological shielding, — take on the role of principal contractor and establish a delineated site to control access and egress to the works and where all work activities are covered by the contractor’s safe systems of work, — electrical and mechanical installation works for the stores and interfaces with the existing DCP import export facility, — procurement, manufacture and installation of shielded doors, — procurement, manufacture, testing and installation of a lid lifting hoist, — procurement, manufacture, testing and delivery of a modified 65 tonne bogie and rail system, — provision of a control room that incorporates the electrical, control and instrument interfaces between the various systems in the new shielded ILW store extension, — heating, ventilation and air conditioning systems for the Stores — interactions with the contractor appointed for the design, supply and installation of the facility cranes, and — functional testing (setting to work) of the new ILW store extensions, covering all plant and equipment including —— the compilation of all testing, —— commissioning procedures, —— instructions to the satisfaction, —— prior approval of the employer’s nominated representative. All testing carried out via a combination of Factory Acceptance Tests (FATs), Site Acceptance Tests (SATs) and Plant Walkdown Inspections (PWDs) as appropriate.