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Latest ITER Newsline

  • Worksite | First pillars for the crane hall

    For the overhead cranes to deliver machine components into the Tokamak assembly pit, the rails that carry them need to be extended some 80 metres beyond the tem [...]

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  • Transport | 300 tonnes of equipment on its way to ITER

    A specially designed assembly tool and elements of the cryostat and vacuum vessel thermal shields are part of the shipments travelling now from Korea to ITER. W [...]

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  • Fusion world | A new tokamak in town

    After EAST in China and WEST in France, another of the cardinal points of the compass has been chosen to name a tokamak. Introducing NORTH—the NORdic Tokamak de [...]

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  • Opportunities | Bringing the ITER Business Forum to Washington

    Every second year, a two-day ITER Business Forum is held to invite existing and potential suppliers for the ITER Project—laboratories, universities, and compani [...]

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  • World Energy Congress | Fusion "at a time of transition"

    In the United Arab Emirates, Abu Dhabi is often referred to as a tourism hotspot that combines luxury and ancient traditions. In September, Abu Dhabi was in the [...]

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Of Interest

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Laying tracks for the elevated railway

R.A.

They're as thick and strong as railroad tracks and could easily carry the equivalent of four TGVs, two Eurostars or 15 steam locomotives. The steel rails that are being installed 43 metres above the basemat of the Assembly Hall are an essential part of the lifting system that will handle components weighing up to 1,500 tonnes.

43 metres above the basemat of the Assembly Hall, workers are laying the rails for the lifting system that will handle components weighing up to 1,500 tonnes. (Click to view larger version...)
43 metres above the basemat of the Assembly Hall, workers are laying the rails for the lifting system that will handle components weighing up to 1,500 tonnes.
When rails are laid on the ground, they rest on a bed of crushed stone (the track ballast) that distributes the load of the passing trains. In the ITER Assembly Hall, the ballast role is played by massive steel elements (9.3 metres long, 20 tonnes) called railway beams.

Resting on the vertical pillars of the Assembly Hall and running the entire length of the building, the railway beams form a perfectly smooth steel track upon which the rails can be affixed.

It will take a few weeks to install the rails and fine tune their alignment. (Click to view larger version...)
It will take a few weeks to install the rails and fine tune their alignment.
On Thursday 12 May, on the north side of the Assembly Hall, the first 18-metre length of rail was lifted, carefully deposited and fastened with heavy clips to the ledge formed by the railway beams. It will take a few weeks to install the rails and fine tune their alignment in time for the installation, beginning next month, of the girders and trolleys of the travelling crane.


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