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  • Art and ITER | Two sisters, two suns and a monument to fusion

    Amid the gentle slopes of Asciano, Italy, there stands a stone window that frames the Sun on the summer solstice. It looks as though it might have always been t [...]

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  • Staff | The men and women of ITER

    They hail from Ahmedabad and Prague ... from Naka and Moscow ... from Seoul, Hefei, Atlanta and hundreds of other towns and cities across the 35 nations partici [...]

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  • ITER Talks | All about ITER and fusion

    Beginning this autumn, the ITER Organization will be launching a new video series to inform, inspire and educate. The first video—introducing the series and off [...]

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  • Image of the week | A majestic components enters the stage

    The floor of the Assembly Hall is an ever-changing stage. Like characters in a grand production, components of all size and shapes make a spectacular entry, pl [...]

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  • Magnet system | A set of spares for the long journey

    In about five years, ITER will embark on a long journey through largely uncharted territory. Conditions will be harsh and—despite all the calculations, modellin [...]

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Of Interest

See archived entries

Eleven pillars of precision

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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