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News & Media

Latest ITER Newsline

  • Crane operator | A cabin in the sky

    There are times, at dusk, when the ITER construction platform resembles an airport, with roads and buildings illuminated by yellow and white lights. From their [...]

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  • Assembly | A colossal task made manageable

    For the execution of work during the next project phase—machine and plant assembly up to First Plasma—the ITER Organization has chosen a contractual approach th [...]

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  • Neutral Beam Test Facility | A new agreement for a new era

    The ITER Organization and the Italian consortium Consorzio RFX* have signed a new agreement governing the construction and operation of the ITER Neutral Beam Te [...]

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  • Load tests | Heavyweight champion

    The Assembly Hall, with its two giant tools towering 20 metres above ground, is one of the most spectacular locations on the ITER site. When a dummy load weighi [...]

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  • Fusion's new pioneers | How to go fast enough to make a difference

    Last month in New York, the Stellar Energy Foundation and the Fusion Industry Association co-hosted an invitation-only workshop: 'Roadmap to the Fusion Energy E [...]

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Of Interest

See archived entries

Eleven pillars of precision

David Wilson, Alignment & Metrology Lead Engineer

Pillars will be used as fixed reference points to define the global coordinate system for civil engineering works. (Click to view larger version...)
Pillars will be used as fixed reference points to define the global coordinate system for civil engineering works.
Mission completed: one of the eleven survey pillars overlooking the site. (Click to view larger version...)
Mission completed: one of the eleven survey pillars overlooking the site.
To ensure the stability of the pillars, they will be constructed around micro piles with foundations in bedrock at a minimum depth of eight metres. (Click to view larger version...)
To ensure the stability of the pillars, they will be constructed around micro piles with foundations in bedrock at a minimum depth of eight metres.
This week saw the beginning of construction activity for the installation of ITER's primary survey network, overseen by the Machine Assembly and Installation Section.

The primary survey network consists of 11 permanent survey pillars positioned on the periphery of the worksite. These pillars will be used as fixed reference points to define the global coordinate system for civil engineering works, and to provide a stable reference for monitoring purposes. The network will evolve as the project develops and in the future will provide the global data for an enhanced reference system to be installed within the Tokamak Building.

To ensure the stability of the pillars, they will be constructed around micro piles with foundations in bedrock at a minimum depth of 8 metres. This week, ITER's contractor GDV Ingenieurgesellschaft Holst mbH and their sub-contractor VIT Verbau und Injektionstechnik GmbH have been setting out the position of the survey pillars and installing the micro piles. The construction of the pillars themselves will occur in the next few weeks. Following a period of stabilization, the positions of the survey pillars will be precisely measured.



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