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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.
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Buried Tideway TBM allows milestone breakthrough
Thursday, July 29, 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
Thursday, July 29, 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
Tuesday, July 27, 2021 Chinese crews have holed through in Moscow using the largest-diameter shield TBM ever exported by China to Europe.
Work well underway on first HS2 shaft
Thursday, July 22, 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
Thursday, July 22, 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
Wednesday, July 21, 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
Tuesday, July 20, 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
Tuesday, July 20, 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
Monday, July 19, 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
Friday, July 16, 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.

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