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Safety rooms protect workers inside giant tunnel boring machine   30 September 2015  

Safety rooms_Alice giant tunnel boring machine
Deep within Auckland's giant tunnel boring machine lie two chambers set up to save workers' lives.
The machine, known as Alice, is central to the country's largest infrastructure project – the $1.4 billion Waterview Connection motorway project in Auckland.
Half the Waterview Connection is underground in 2.4 kilometre twin tunnels being constructed by the world's 10th largest tunnel boring machine – Alice.

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