We’re using a few techniques to build the North East Link tunnels. In this part of Bulleen, it's all about the Sequential Excavation Method (SEM), or ‘mined tunnelling’. Mined tunnelling uses roadheaders to excavate the tunnels in sections and installs supports as tunnelling progresses.
The mined tunnels in Bulleen have been carefully designed to link to Manningham Road and the Eastern Freeway interchanges.
Hear from Superintendent, John, about the works leading up to SEM works.
