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Bauer launches compact underground slurry wall system
29 July, 2021
Germany-based Bauer has launched what it claims is a “truly global innovation” for constructing diaphragm (slurry) walls which allows subway stations to be built under existing buildings, so providing new possibilities for engineers and architects.

Buried Tideway TBM allows milestone breakthrough
29 July, 2021
Tideway has announced that TBM Millicent, which had been due to complete her drive toward the shaft at Carnwath Road Riverside Site in Fulham, London, has instead been turned and buried to allow the construction of a short connection tunnel.

Metro Tunnel TBM dismantling underway
29 July, 2021
Following the completion of tunnelling in May 2021, the four slurry TBMs which since April 2020 have been excavating Melbourne’s Metro Tunnel are now being retrieved from underground.

Record Chinese TBM holes through in Moscow
27 July, 2021
Chinese crews have holed through in Moscow using the largest-diameter shield TBM ever exported by China to Europe.

Getting the right fix
27 July, 2021
Panos Spyridis, engineer and professor of fastening and assembly technologies at the Technical University of Dortmund, Germany, clarifies various aspects of the design, specification and installation of fixings for tunnel projects

Delivering Selina
27 July, 2021
Shannon O’Keeffe, Senior Tunnel Agent for Costain Engineering looks at the complex logistics that were initiated to ensure the successful delivery of a TBM to a Thameside site for the boring of Tideway (Eastern Section)

Florence and Cecilia set off
27 July, 2021
HS2 is the largest transport infrastructure project in Europe. Julian Champkin had a lightening tour of the Chiltern Tunnel portal to see the first of the ten TBMs that will work on the project’s 51km twin-tunnels

Factory for Fehmarn
27 July, 2021
Main construction has started at Fehmarn for the world’s longest immersed tube tunnel. Report by Patrick Reynolds

A new era, A new look
27 July, 2021
July 2021 brings a fresh new look to Tunnels and Tunnelling which has been designed to bring order, clarity and a more relaxed feel. But the changes are not just aesthetic. We have made structural changes to ensure T&TI keeps up with the times.

Work well underway on first HS2 shaft
22 July, 2021
Engineers working on the UK’s new high-speed railway (HS2) have begun excavating the first of five ventilation and emergency access shafts for the 16km-long tunnels being bored under the Chiltern Hills.

UK start-up aims to transform tunnel construction
22 July, 2021
Tunnel technology start-up hyperTunnel, which says it aims to reimagine conventional tunnel-building processes, has been awarded a contract to work with Network Rail on non-disruptive tunnel construction, enlargement and repair work.

World Bank to use Emerald Book for underground works contracts
21 July, 2021
International engineering federation FIDIC has extended its licensing terms to allow the World Bank (WB) to use the Emerald Book (Conditions of Contract for Underground Works) for all WB-financed underground works contracts.

Robbins TBMs in final Mumbai Line 3 breakthrough
20 July, 2021
Robbins has announced that its 6.65m-diameter Crossover XRE TBM (the second of two) recently made its third and final breakthrough on India’s Mumbai Metro Line 3, following its sister machine’s final breakthrough made in late April.

Japan proposes tunnel under Panama Canal
20 July, 2021
Panama’s government is said to be mulling over a Japanese proposal for a 5.3km tunnel that will pass under the Panama Canal as part of the planned US$2.5bn metro Line No 3.

BTS revises guide to compressed air working
19 July, 2021
A revision of the BTS ‘Guide to the Work in Compressed Air Regulations’ has been released by the British Tunnelling Society (BTS).

Acciona Ferrovial JV wins large Australian twin-tunnel contract
16 July, 2021
A joint venture between Acciona and Ferrovial has won a contract worth around US$1.47bn which involves the construction of twin 11km tunnels for the central section of the Sydney Metro West Line.

New consultation launched for Lower Thames Crossing
15 July, 2021
Highways England has launched a new public consultation on the impact of its proposed Lower Thames Crossing which will incorporate 22.9km of new road and the UK’s longest road tunnel.

TBM undergoes in-tunnel diameter conversion
14 July, 2021
US-based TBM maker Robbins announced recently that its 11.6m-diameter Main Beam TBM (‘Big Tex’) – the largest rock machine ever to bore in the US – has recently undergone a diameter change during tunnel excavation.

Autumn date confirmed for BTS conference
13 July, 2021
Much awaited but delayed by the onslaught of the pandemic, the UK’s largest tunnelling show – the British Tunnelling Society 2020+1 Conference and Exhibition – will take place at the QE2 Centre in London on 30 September – 1 October 2021.

China completes its largest home-produced TBM
13 July, 2021
China has completed the manufacture of a 12.79m-diameter EPB tunnel boring machine which is hailed as the largest of its kind the country has produced to date – and with complete intellectual property rights.