Building Anzac Station
Construction of Anzac Station is now underway on St Kilda Road.
The station will be built via a cut and cover method, using the ‘top down’ approach.
The walls of the station will first be built into the ground through a series of diaphragm walls, or D-walls. Once the walls of the station are set, excavation equipment will then dig out the top few metres of the station box. A new permanent concrete slab is then poured at this level, forming the roof of the station box. Once the roof is in place, a temporary acoustic shed will be installed over the northern end of the station box, excavation of the station will take place 24/7 under the roof slab and acoustic shed.
Anzac Station will also play a key role in supporting the project's construction activities south of the Yarra River.
Tunnel boring machines (TBMs) will be launched from Anzac Station towards the eastern tunnel entrance in South Yarra, they will be retrieved and taken back to Domain, before being re-launched and tunnelling towards the new underground station at the southern end of Swanston Street.
Key construction activities for Anzac Station include:
- Tree protection and removal.
- Relocation of underground services such as water, sewerage, gas, power and telecommunications.
- Establishment of the tunnelling support site at Edmund Herring Oval.
- Reconfiguration of St Kilda Road to allow traffic, trams and cyclists to keep flowing around the construction site.
- TBM launch and support site.
- Excavation of the station box and construction of a diaphragm wall.
- TBM launch.
- Structural works including the station entrance connections.
Construction traffic routes for the St Kilda Road precinct aim to move trucks and other construction traffic between the site and Kings Way / CityLink as directly as possible.
What we are doing
Construction works are continuing within the St Kilda Road site throughout January 2019 and will include:
- Ongoing site establishment works
- Northern section station box construction
- Southern section station box construction
- High voltage cable connection
- Geotechnical investigations and soil sampling
- Asphlating works
- Traffic barrier installation.
Works to set up the Tunnel Boring Machine support site on Edmund Herring Oval will continue during January 2019.
Station box construction
Station box construction activities are continuing in the northern and southern sections of the Anzac Station box.
Northern section station box activities
- Removal of the pedestrian walkway next to Melbourne Grammar will take place in mid-January 2019
- D-Wall and central piling works will continue until mid-January 2019
- Station Box excavation works will commence in mid-January 2019. These works include the demolition of the road surface and redundant tram rail
- Demolition of the guide walls and central piles will commence in late January 2019
- These works are expected to generate high levels of noise and some vibration.
Southern section station box activities
- Final asphalting works on the St Kilda Road Service Road between Bowen Lane and Albert Road south.
- Guide wall works will continue until early January 2019
- Overnight relocation of heavy machinery will take place in mid-January, residents will be notified ahead of these works
- D-wall installation works will commence in mid-January 2019
- These works are expected to generate some periods high level of noise and vibration.
High voltage cable relocation
Early January 2019
In early January, works will be undertaken to connect the new high voltage cable for operation in its new location. These works will include:
- Non-destructive digging (NDD) and saw cutting to lay conduits to connect the high voltage cable in its new location
- Pulling of cables between two pits to connect the new service.
Late January 2019
- Geotechnical investigations and soil sampling works are continuing in the Domain Precinct to assess ground and environmental conditions.
- Existing groundwater monitoring wells may be accessed to measure groundwater levels. This will require up to two workers accessing the wells for approximately 10 minutes..
Edmund Herring oval tunnel boring support site set-up
Activity will increase at Edmund Herring oval with both preparatory and structural works being undertaken. These works will include:
- Construction of a small retaining wall
- Drainage installation
- Ground preparation works and laying of foundations/ slabs
- Construction of roads within the site
- Installation of a pipe rack and gantry
- Erection of structural walls for TBM support facilities
- Removal of one tree on the north side of Domain Road.
It is estimated that construction activities in the Anzac Station precinct will take around five years. Surface disruption is expected to be shorter than the overall construction time. Project wide rail systems installation will occur after this.
The Metro Tunnel is on track to be completed by 2025, which accounts for construction works above and below ground, tunnels and stations fit-out, as well as installation and testing of critical safety systems and the high capacity signalling which needs to be integrated with existing network systems.
The estimated project timelines are due to the scale and complexity of the Metro Tunnel construction, along with Melbourne's challenging ground conditions. Rail Projects Victoria (RPV) and the construction contractors will work to deliver the project to Victorians as early as possible while maintaining the highest safety and quality standards.