The excavated railway cavern at Sydney Metro's Victoria Cross Station is the largest rail cavern in Australia at 265 metres long, 25 metres wide and 20 metres high.
Major progress has been made in the first half of 2020, with excavation of the cavern and service tunnels now complete.
Work is now focused on installation of the permanent concrete lining inside the underground station cavern and six pedestrian and service tunnels.
The large acoustic shed along Berry and Miller streets has also been removed to allow for excavation of the southern shaft, which will become one of the future entries to the new station.
This work will continue until November 2020 and, so far, about 151,000 tonnes of crushed rock has been excavated from the shaft, out of a total of 262,000 tonnes.
As of July 2020:
- About 357,000 tonnes of crushed rock has been removed from the caverns and connecting service tunnels;
- More than 3,500 tonnes of steel has been used to reinforce the future station and service tunnels;
- More than 34,000 cubic metres of concrete has been poured to form the lining of the future station; and
- About 31,000 square metres of waterproofing membrane has been installed to all excavated rock inside the cavern and service tunnels.