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Roadheader breaks through first Metro West service tunnel
07 March, 2024
The first service tunnel to connect Sydney’s 24km Metro West line to a new stabling and maintenance facility at Clyde has been completed.

Sydney Airport northern tunnels reach halfway mark
06 March, 2024
The two TBMs building the northern tunnels for the Sydney Metro – Western Sydney Airport project have reached the halfway mark.

CRCHI Slurry Pipe Jacking Machine Delivered to Colombia
06 March, 2024
In February, CRCHI (China Railway Construction Heavy Industry) completed assembly of its slurry pipe jacking machine in Changsha, China, successfully passing the acceptance inspection. This milestone marks the first export of a China-made pipe jacking machine to the Colombian market.

CRCHI Underground Pipeline Network Equipment in Construction Sites
06 March, 2024
On February 7, a significant breakthrough was achieved at the construction site of the Bang Pakong-south Bangkok power plant gas transmission pipeline project in Thailand. The first section of the initial phase of pipeline laying employed the laying and jacking machine with a diameter of 914mm, manufactured by CRCHI (China Railway Construction Heavy Industry), was successfully completed.

Final HS2 TBM in West Midlands starts work
06 March, 2024
HS2 has launched the last TBM to bore tunnels for the new high-speed railway in the West Midlands.

TBM Ida completes first 2km for Brenner Base Tunnel
05 March, 2024
TBM Ida, one of two TBMs advancing south on the Brenner Base Tunnel in Austria, has completed the first 2km of its journey.

Ionian Mega Lot 3 more than 50% complete
05 March, 2024
Work is progressing on the Ionian highway in southern Italy, with the latest milestone the breakthrough of the 1,200m-long south barrel diaphragm on the Roseto 1 Tunnel.

Channel Islands tunnel idea gains momentum
05 March, 2024
Guernsey and Jersey’s Chambers of Commerce are this week hosting meetings to explore the viability and benefits of a tunnel between the Channel Islands and a link to France.

Record-breaking TBMs relaunched in Sydney
04 March, 2024
Two TBMs have been relaunched to build the next 11km section of Sydney Metro West.

Implenia wins North Bothnia Line tunnel contract
04 March, 2024
The Swedish Transport Authority has awarded Implenia the contract for planning and building the Ersmark tunnel in northern Sweden.

Tunnelling completed on first River Shannon crossing
01 March, 2024
The first underground crossing of the River Shannon has been completed as part of the Athlone Main Drainage Scheme.

Fifth TBM delivered for Mont Cenis base tunnel
01 March, 2024
The fifth of the seven TBMs to build the tunnel for the new Lyon-Turin railway has been delivered to the French-Italian group of companies, Elyot, at Herrenknecht’s factory in Germany.

Snowy 2.0 marks manufacturing milestone
29 February, 2024
The Snowy 2.0 Cooma precast manufacturing facility has produced 100,000 of the 130,000 concrete segments needed for the 27km of tunnels for the pumped-hydro project.

Delivery Partner chosen for Hudson Tunnel Project
29 February, 2024
The Gateway Development Commission has selected its delivery partner for the Hudson Tunnel Project (HTP).

TBM breaks through on longest HS2 tunnel
28 February, 2024
HS2’s first TBM – which launched almost three years ago – has broken through at the end of her 16km journey under the Chilterns, excavating the longest tunnel on the rail project.

Robert Mair – Interview
28 February, 2024
Few in the tunnelling world are known to the general public, fewer still are profiled in a broadcast programme such as on BBC’s prestigious ‘The Life Scientific’ on Radio Four. In fact, only one has been accorded that mark of public recognition and interest – Robert Mair, Emeritus Professor of Civil Engineering at Cambridge University, and recent Master of Jesus College there, and is past-President of the Institution of Civil Engineers.

WTC2025 call for papers opens March 1
27 February, 2024
The call for abstracts for the World Tunnel Congress 2025 opens on Friday.

Resilient underground design and systems
27 February, 2024
The need for subsurface spaces to be more sustainable and resilient was the focus of an ITA report published last year which, in considering ‘Urban Underground Space for Resilient Cities’, looked at need, strategies, design concepts to address the challenges

Technological Innovation Drives The High-Quality Development Of The Shenzhen Metro
27 February, 2024
Under the guidance of the innovation-driven development strategy, Shenzhen Metro is undergoing a transformation in its development model, transitioning from rapid expansion to a focus on highquality development.

Delving Deep: Rethinking Underground Use
27 February, 2024
Rethinking Our Cities using the Underground Space’ was the important theme of a dedicated collaborative event hosted in Porto, Portugal, by the Portuguese tunnelling society (CPT), in Nov 2023, and moderated by ITACUS Co-chair Antonia Cornaro, Expert Underground Space with Amberg Engineering as well as lecturer on Planning of Underground Space at ETH Zurich. In this article, she describes and summarises the key points of the interesting discussion.