Good Progress Made By TBM Sandy Through Sand

Good Progress Made By TBM Sandy Through Sand

Western Australia Premier Mark McGowan

Western Australia Minister for Transport Rita Saffioti

Forrestfield-Airport Link Tunnel To Airport Central On Track

Victor P Taffa

  • METRONET on track with tunnel boring machine (TBM) Grace reaching 1.5 Km
  • Both TBM’s expected to break through at Airport Central Station in coming months
  • Local Western Australia jobs created at concrete batching plant and construction sites

Premier Mark McGowan and Transport Minister Rita Saffioti today inspected the Forrestfield-Airport Link rail tunnels, walking the new 1 Km underground tunnel bored by TBM Sandy.

“METRONET will provide an innovative public transport system that will invigorate communities and create thousands of local Western Australia jobs.” Premier Mark McGowan said.

TBM’s have covered a combined length of 2.5 Km and are expected to arrive at Airport Central Station in the coming months.

TBM Grace began tunnelling last August, and is travelling an average of 26 metres per day.

Second TBM, Sandy, began tunnelling in October 2017 and is 1 Km into the second tunnel.

As the TBM’s progress, 54,000 locally made concrete segments will be installed to line the 7 metre diameter tunnels, creating the tunnel walls.

“Forrestfield-Airport Link will open up the Perth foothills, providing a new option for the community to access the CBD, Perth Airport and wider public transport network.” Minister for Transport Rita Saffioti said.

“METRONET team has been planning land use opportunities around Forrestfield and Redcliffe Station to create well-connected communities within the station precincts.”

More than 16,000 of the concrete segments have already been locally manufactured at a purpose-built facility near the project site in Forrestfield.

About 2,000 jobs will be created over the life of the project, including in the manufacturing and construction industries.

Completing the Forrestfield-Airport Link is a key part of the McGowan Government’s METRONET plan, creating a 20-minute direct link between the eastern foothills and the central business district as well as the wider public transport network via the airport.

Project is jointly funded by the State and Federal governments.

WA Minister for Transport Rita Saffioti

Japans World Famous Bullet Train












Tunnel Boring Progress

Compared to Sydney, New South Wales the progress that the TBM’s are making in Perth is good. Sydney has sandstone to bore through whereas Perth has sand to bore through.

Boring through sand is a lot harder than sandstone as a clean cut bored tunnel is a lot harder to achieve with sand than sandstone.

Regardless of the tunnels bored however all rail networks in Sydney, Brisbane, Melbourne and Perth needs to be Heavy Rail that has a Train Driver, Guard and Platform Staff.

Capital City-Capital City High Speed Rail at 500 km/h And 1 Suburban Heavy Rail Network

Capital City-Capital City High Speed Rail at 500 km/h will connect with suburban services more effectively than having 2 disjointed suburban rail networks.

Rail commuters’ needs to be placed Front and Centre of decision making.

These are all known as Heavy Rail Technology:

  • Standard Gauge in New South Wales, Australian Capital Territory and Northern Territory,
  • Broad Gauge in Victoria and South Australia,
  • Narrow Gauge in Western Australia, Queensland and Tasmania.

Gauge convertible Bogies and Tracks overcome cross-border gauge issues.

Capital City-Capital City High Speed Rail at 500 km/h is Japan’s Bullet Train that can now operate at 515 Km/h.