Sarcophagus milestone

摘要

Novarka, a 50-50 joint venture between Vinci and Bouygues, has completed jacking work on the new confinement structure for the No.4 reactor at the former Chernobyl nuclear power plant in Ukraine. The reactor went into meltdown on April 26, 1986 and was subsequently encased in a concrete sarcophagus. The new structure comprises two semi-arches, each of which has undergone three jacking operations since November 2012. This followed remediation work, excavation and construction of foundations at the assembly area located adjacent to No 4 reactor. The next stage will involve connecting the two halves of the structure together, installing ventilation, power supply and control-command systems and then pushing the confinement structure over the current sarcophagus.