Balfour Beatty has completed the breakthrough of the longest and final onshore cooling-water tunnel at Hinkley Point C nuclear power station. This milestone marks the completion of Balfour Beatty’s sprayed concrete lining works at Hinkley Point C. Excavating through 600 metres of ground to create the tunnels, the team sprayed the ground with 9000 m3 of concrete to stabilise the underground structures. More than 1.6 million hours of work across the tunnels was completed to schedule. The five onshore tunnels will now undergo secondary lining works, installing rebar concrete structures to further stabilise the sprayed concrete.
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