Fact Sheets | 29 March 2018
Tunnel boring machines (TBMs) are large machines that excavate below the ground surface, while simultaneously installing concrete lining units to build a tunnel.
Fact Sheets | 23 October 2017
The Forrestfield-Airport Link’s two tunnels will be constructed with 54,000 concrete segments. A Forrestfield warehouse has been transformed into a facility to batch the concrete and create segments to line the two tunnels.
Fact Sheets | 23 October 2017
Emergency egress shafts provide safe exit points in the event of an emergency, and access to the Forrestfield Line's twin-bored tunnels for maintenance,
Fact Sheets | 7 June 2017
Dewatering involves temporarily lowering the water table to allow soil to be excavated from a work site without it refilling with water. This process will be used in construction of the project's underground station boxes and portals.