Posts Tagged ‘tunnels’

New South Wales coal mines undermining road and rail

In New South Wales coal mining is big business, with mines hidden beneath ordinary looking forests extracting millions of tonnes of coal each year. However once the coal is removed, an empty void is left behind – and the resulting land subsidence impacts road and rail networks on the surface. This is an incomplete list […]

Delivering concrete segments to the Metro Tunnel

The tunnel boring machines responsible for digging Melbourne’s Metro Tunnel started work in August 2019, but the concrete segments that will line the new tunnel have had a much longer journey. Their start their life behind an anonymous gate in Ravenhall, next door to the Regional Rail Link tracks. But the ‘tunnel lining segment manufacturing […]

Melbourne’s rail network emergency response vehicles

If something ever goes wrong in Melbourne’s City Loop tunnels, emergency responders need a way to get to the scene of the incident. The first problem Walking along the tracks will take forever – each section of concrete slab track has a hole in the middle! So emergency trolleys were provided at each entrance to […]

CityLink’s clever tunnelling technologies

With all of the recent talk about the construction of the Melbourne Metro rail tunnels beneath Swanston Street and the Yarra River, it seems that many people have forgotten how our last major tunnel project was built – CityLink.

West Gate Freeway at CityLink

How deep are Melbourne’s City Loop tunnels?

Melbourne’s City Loop – if you racing to catch a train from the lowest level of Parliament station, it feels like you are taking a journey to the centre of the earth. But how deep are the stations in reality?

Climbing out of Parliament station