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Herrenknecht TBM ‘Ellen’ holes through on Line 15 (South) 19 April, 2021
Tunnelling has been completed on Line 15 (South) of the Grand Paris Express subway expansion following the breakthrough on April 6 of TBM Ellen at Arcueil-Cachan station.
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Harding Prize yields another young worthy winner
Friday, April 16, 2021 Presentations from three promising young tunnel engineers kept an audience fascinated for the best part of two hours yesterday evening during the online Harding Prize final organised by the British Tunnelling Society Young Members (BTSYM). So, the winner of the 2021 Harding Prize is…
Breakthrough on Hudson Tunnel
Thursday, April 15, 2021 In what must be seen as a green light for the construction of the long-awaited tunnel beneath the Hudson River in New York, the Biden administration has given the go-ahead for a June 2021 completion of the Final Environmental Impact Statement (FEIS) and Record of Decision for the project.
Orica says new software allows blasting in sensitive areas
Thursday, April 15, 2021 Commercial explosives and blasting systems manufacturer Orica has launched new, predictive software which it claims can allow blasting to take place without affecting sensitive structures.
Delhi Metro inviting bids for Phase 4 tunnelling works
Wednesday, April 14, 2021 Delhi Metro Rail Corp (DMRC) is inviting bids from parties in eligible countries for the design and construction of twin tunnels by shield TBM on the 20.2km Aerocity to Tughlakabad Corridor of the Delhi Metro Rapid Transit (DMRT) Project Phase 4.
Sandvik launches DT923i drill rig
Wednesday, April 14, 2021 “Uncompromised accuracy and productivity” are claimed by Sandvik to be among the benefits of its newly introduced DT923i jumbo rig designed for high-power face drilling in tunnels and caverns.
Early breakthrough achieved on Paka Tunnel
Monday, April 12, 2021 A first tunnelling breakthrough has been achieved six months ahead of schedule on Malaysia’s East Coast Rail Link (ECRL) despite the challenges faced by the project during the past three years.
Tunnelling milestone reached on Sydney’s Rozelle Interchange
Thursday, April 08, 2021 Tunnelling on the Rozelle Interchange – a key component of Australia’s biggest road infrastructure project – has now reached the halfway mark, with 12km excavated.
Three bidders shortlisted for Lower Thames Crossing
Wednesday, April 07, 2021 Highways England has named three construction/engineering companies which it has shortlisted to build the proposed Lower Thames Crossing – destined to be the longest road tunnel in Britain and hailed as the most ambitious UK roads project for a generation.
BTS introduces four CPD courses
Wednesday, April 07, 2021 Four CPD courses organised by the British Tunnelling Society (BTS) in conjunction with the University of Warwick are now available and formulated to increase knowledge of tunnelling within the framework of Continuing Professional Development (CPD).
New contracts awarded for Toyo Tunnel project
Tuesday, April 06, 2021 Good progress is being marked on Colombia’s Toyo Tunnel project following the award by the country’s national highway institute Invias of two contracts worth a combined US$222m.

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