The last blast is done ... and concrete about to be poured.
The excavation works for the ITER Tokamak pit are making impressive progress: this week on Thursday the last blasting took place. The 87 m x 123,6 m pit is now officially 298,65 m above sea level - which means that the ultimate depth of 17 m is almost achieved. "We are well on schedule," said Jean Desfarges, Construction Manager for Engage, the company in charge of the follow-up of the excavation work on behalf of F4E, the European ITER Domestic Agency. "The next step now is to finalize the survey of the underlying rock for which 660 boreholes will be drilled. Then, a 5 cm blinding layer of concrete will be poured before the thick, 1,5 m concrete slab is filled in."
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