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  Date 2019
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Keeping Pace
14 November, 2019
Frank Grundholm, vice president for global HVACR sales at ABB Motion, explains how variable frequency drives (VFDs) are used together with electric motors for the effective control of rail and road tunnel ventilation fans

Forum Tunnel incident
14 November, 2019
A tunnel fire is never a positive event, but when there is no loss of life there is good reason to be thankful. Fläkt Woods issued this account of a recent incident

Keeping up the Pressure
14 November, 2019
A cut-and-cover tunnel in Italy will make use of high pressure compressed air in what engineers are claiming is a first for the Mediterranean country. Paola De Pascali spoke with Andrea Pigorini, the head of infrastructure engineering at Italferr, and a spokesperson for Salini Impregilo, to find out more

Adverse conditions
14 November, 2019
Tunneling at Vietnam’s arduous Thuong Kon Tum HEPP draws to a close.

Keeping safe
14 November, 2019
In this issue we have a fire protection angle. You will find several articles covering an incident in Gdansk, variable frequency drives, the impact of fire events on tunnel linings and a piece on the latest health and safety thinking in this area.

Central Interceptor project’s TBM ordered
14 November, 2019
New Zealand – The Central Interceptor wastewater project has ordered a 5.45m-diameter Herrenknecht EPB for its main 13km tunnel. The tunnel depth will vary from 15-110m, with a harbour crossing 15m below the seabed. The finished diameter of the tunnel will be 4.5m.

Protan hires personnel for move to tunnelling
14 November, 2019
Norway/Turkey – Protan has hired Ardnt Hedtkamp to lead its tunnel business in Central Europe and Simen Aaserud as its business development manager. The Norwegian industrial group had acquired Turkish tunnel membrane manufacturer Multiplan in August.

Leaked HS2 cost review says proceed
14 November, 2019
Great Britain – The High Speed 2 (HS2) project in the UK should go ahead, according to a leaked draft of the review into the project. Seen by British newspaper ‘The Times’, the report highlights the benefits to the North of England, despite significantly rising costs and falling estimates of the final return on investment.

Progress update from Isarco River Underpass
07 November, 2019
Italy – Salini Impregilo, Strabag, Consorzio Integra and Collini Lavori have completed 70% of the excavation work on the southernmost lot of the Brenner Base Tunnel project. This amounts to 3,800m of excavation as Tunnels and Tunnelling goes to press.

Bechtel opens Melbourne office to target infrastructure pipeline
07 November, 2019
Australia – Bechtel has opened an office in Melbourne. It stated that the move was to pick up work from the Victorian Government’s AUD 100bn infrastructure pipeline.

First two TBMs gear up for Pune Metro
07 November, 2019
India – Two Terratec EPBMs have been completed and shipped to the underground works on Line 1 of the 16.56km Pune Metro. The TBMs have already been despatched from the factory in China and are currently being shipped to the port of Mumbai. Both machines are expected to arrive in November and will be transported to Pune where they will be assembled and then tested on site in mid-December.

Metro Vancouver greenlights Massey tunnel option
07 November, 2019
BC – Metro Vancouver's board of directors approved the tunnel option suggested last month by a committee. The November 1 vote endorses the proposed eight-lane, immersed tube tunnel for the Massey tunnel replacement. Two lanes would be reserved for transit.

Clean water
31 October, 2019
Kristian Downs, export manager for Siltbuster explains the use of the company’s system on the Gothenburg Metro project

In the clear
31 October, 2019
Tunnelling below St. Louis will improve wastewater capacity and alleviate overflows, Desiree Willis, technical writer for Robbins, reports

To boldly go underground
31 October, 2019
Paola De Pascali speaks with Jamal Rostami, head of mining engineering at the Colorado School of Mines, who has been looking at the challenges of tunnelling on the moon

No changes, No regrets
31 October, 2019
Paola De Pascali returns to the Trans Adriatic Pipeline’s landfall site to check on progress as the project enters its final stages

Manila Aqueduct
31 October, 2019
At the June 2019 meeting of the British Tunnelling Society, GHD’s practice leader for tunnels, Brendan Henry spoke about the NBAQ 4 project to deliver water to seven million residents in the Manila metropolitan area. Alex Conacher reports

The Emerald Book
31 October, 2019
FIDIC board member Aisha Nadar is the main board liaison for contracts. She explains the rationale and thinking behind the recently launched FIDIC Emerald Book, the Conditions of Contract for Underground Works

Breakthrough on Thames Tideway West
31 October, 2019
Great Britain – The first breakthrough on the Thames Tideway project took place last week at King George’s Park in Wandsworth. A 3m diameter Lovat EPBM, Charlotte, is digging the 1.1km Frogmore Connection Tunnel from Wandsworth to Fulham. The breakthrough marked completion of the 500m southern section of the tunnel and the TBM will now be lifted from the shaft, taken back to Dormay Street and placed back into the ground to tunnel 600m north to Fulham.

Sandvik launches new drill rig and rock drills
29 October, 2019
Sweden – Sandvik has launched its DT1132i drill rig and RD535 rock drill, intended for tunnelling operations, and also its RDX5 rock drill for face and long hole drilling, as well as rock bolting.