Concrete nearly four metres thick helps to act as a giant weight to counter water pressures around what will become the city’s busiest metro station.

https://www.watoday.com.au/national/nsw/how-a-bunker-like-cavern-holds-sydney-s-largest-metro-train-station-down-20260121-p5nvr9.html?ref=rss&utm_medium=rss&utm_source=rss_feed

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