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27 September, 2019
A round-up of tunnel work in the Nordic Forum
Tunnelling milestone made on Ottawa CSST
26 September, 2019
Ontario – The TBM excavating two tunnels for Ottawa’s Combined Sewage Storage Tunnel (CSST) project has completed its 4km- east-west journey.
Tunnelling works suspended for East-West Metro project in India
10 September, 2019
India - Following the discovery of cracks and collapsed residences in central Kolkata, the East-West Metro project’s tunnelling works were suspended on 1 September 2019.
Sydney Metro CBD breakthrough
21 August, 2019
Australia – The first TBM has broken through into the Pitt Street metro station in Sydney’s central business district (CBD). TBM ‘Nancy’, a double shield hard rock gripper machine manufactured by Herrenknecht has tunnelled 6km through sandstone and shale since launching from Marrickville in October. TBM ‘Mum Shirl’, excavating the parallel tunnel, is a few hundred metres behind.
14 August, 2019
The World Tunnel Congress returned to Italy in May this year. Following a successful show, Paola De Pascali presents this report
Suffolk County TBM unveiled
13 August, 2019
New York – Suffolk County celebrated the TBM for its outfall replacement project on August 7.
SVCW debuts gravity sewer TBM
22 July, 2019
California – Local officials celebrated a major project milestone of the Silicon Valley Clean Water (SVCW) USD 495M Regional Environmental Sewer Conveyance Upgrade (Rescu) Program by gaining a firsthand look at the 16ft- (5m-) diameter EPBM.
08 July, 2019
Tommy Parker, NZ Transport Agency and Iain Simmons, Well-Connected Alliance gave a presentation on the Waterview Connections project. Paul Perry of Hewson Consulting Engineers reports
Metro unveils Purple Line phase 2 TBMs
21 June, 2019
US - The Los Angeles County Metropolitan Transportation Authority (Metro) joined elected officials and community members in Century City for a ceremonial naming and unveiling of its second set of TBMs that will dig twin subway tunnels between Beverly Hills and Century City, on Monday. Subway tunnelling is expected to begin in early 2020.
VSM record depth at York Potash
12 June, 2019
Great Britain – The Herrenknecht vertical shaft sinking machine has finished its work at Woodsmith Mine, excavating the access shaft for Sirius Minerals transport system to 115m and setting a new VSM world record in the process. The previous record was 84m. The shaft will now be excavated using traditional techniques to the full 360m depth.
The grand Renaissance
04 June, 2019
The tunnelling sector is booming in France after some dark years. Paola De Pascali met Michel Deffayet, the chair of the French Tunnelling Society (AFTES)
Breakthrough on Blacklick
03 June, 2019
US – The first microtunnel drive on the Blacklick Creek Trunk Sewer in Albany, Ohio, made a breakthrough, Aldea Services announced yesterday. It is serving as the construction management team and trenchless design engineers.
06 May, 2019
Paola De Pascali looks at the Basque Y network in Spain that is set to reduce travel times between the regional capitals and to connect Spanish and European high speed networks.
The big conversion
12 April, 2019
Paola De Pascali spoke with Florent Detraux, tunnel construction manager at Vinci Construction Grand Projets, about the conversion of an NFM TBM to use Herrenknecht Variable Density technology on the third metro line Phase 4A in Cairo
Herrenknecht wins Bauma Innovation Award
12 April, 2019
Germany – Herrenknecht scooped the Bauma Innovation Award for its E-Power Pipe installation method. The award was granted in the ‘machine’ category, and was presented on Sunday.
10 April, 2019
Paola De Pascali interviews Spanish infrastructure companies and the Spanish Association of Tunnels and Underground Works to understand how the financial crisis affected the tunnelling industry and how the companies became active abroad, getting a strong presence on the international tunnelling market.
08 March, 2019
Paola De Pascali talked with Lombardi Ingegneria technical director, Alessandro Damiani and CMC project manager Lorenzo Fiorentino about the challenges met during excavation of the Metro Line 1 extension in Turin, Italy
To the next century
08 March, 2019
Alex Conacher visits the Elan Valley Aqueduct project in Wales, where tunnellers are constructing three bypass sections adjacent to the existing Victorian asset
Update from Forrestfield
05 March, 2019
There is some late-breaking news as Tunnels and Tunnelling International goes to press. On 19 February the Forrestfield-Airport Link’s client announced that its two stopped TBMs should resume tunnelling in mid- and late-March respectively, good news for a project that was previously held up by a sinkhole last September.
TAP project secures funding
27 February, 2019
Italy – The Trans Adriatic Pipeline (TAP), an EUR 3.9bn (USD 4.43bn) natural gas pipeline project in the eastern Mediterranean, has been granted full funding. Mott MacDonald was the lenders’ technical advisor on the project and performed technical due diligence on TAP’s design, construction and operational plans.