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First TBM holes through on Milan M4 central section
11 September, 2020
Webuild Group has announced that on 9 September the first of two TBMs boring the central section of Milan’s M4 metro line broke through at the future Solari underground station. The second TBM is expected to hole through in a few days’ time.

Mumbai TBM to start coastal road work next month
10 September, 2020
Brihanmumbai Municipal Corporation (BMC) is set to begin tunnel boring on the Mumbai Coastal Road Project, India, by October 25, reported The Hindustan Times. The 3.4km-long twin tunnels form part of the Coastal Road between Priyadarshini Park at Malabar Hill and Girgaum Chowpatty.

Manila accepts first two of 25 TBM army
09 September, 2020
Officials from the Philippine’s Department of Transportation have accepted the first two of 25 TBMs that will be used to bore the US$7bn Metro Manila Subway Project.

Mayor of London pressured to scrap tunnel
08 September, 2020
The Labour Party has called on Sadiq Khan, the Mayor of London, to urgently review plans for the proposed £1.2bn (US$1.55bn) Silvertown road tunnel in East London.

Switzerland opens Ceneri Base Tunnel
07 September, 2020
Switzerland’s 15.4km Ceneri Base Tunnel (CBT) was officially opened on Friday 4 September after 10 years of construction work. Its completion forms the third and final component in the US$25bn New Rail Link through the Alps (NRLA) flat route linking northern Europe to the Mediterranean.

Jobs boom heralded as HS2 construction starts
04 September, 2020
After 10 years of planning and development work – not to mention heated debate, noise and anticipation – construction work has formally started on HS2, Europe’s largest infrastructure project.

Hudson Tunnel project costs rise by US$275m
02 September, 2020
A recent updated financial plan has revealed that the overall costs of the Hudson River rail tunnel project now stand at US$11.6bn, an increase of US$275m. The projected start of major construction has also been pushed back by one year to 2022 due to uncertainties over federal funding and environmental sign-off.

New tunnelling company formed
02 September, 2020
Lyon-based BMS along with Peninsula Capital Management have announced the creation of NFM Engineering, a company which will specialise in tunnel engineering and related services.

Lötschberg repair works to start next week
02 September, 2020
Starting Monday 7 September, Swiss rail operator BLS will begin the remedial works to prevent further sand and water ingress into the Lötschberg Base Tunnel. This will involve renovating the east bore of the 14km twin-bore section while allowing the majority of passenger services to continue.

Sydney Metro West shortlist revealed
02 September, 2020
Three consortia have been shortlisted for two main tunnelling packages on the Sydney Metro West Project, it was revealed recently.

WTC2020 digital congress ready to rock and roll
02 September, 2020
ITA-AITES, organiser of the annual World Tunnel Congress, is making the final preparations for the WTC2020 event which will be held online from 11-17 September.

Melbourne metro celebrates new breakthrough
28 August, 2020
Another breakthrough has occurred on Melbourne’s US$8bn Metro Tunnel project as TBM Joan emerged at Parkville station earlier this week. The machine broke through into the station box 20m below ground having mined 1.4km since its launch at Arden in May 2020.

Hungary to start sub-Danube tunnel feasibility study
27 August, 2020
Hungary is to undertake a feasibility study for a new railway tunnel under the River Danube in Budapest. An announcement made recently on the Facebook page of Dávid Vitézy, CEO of Budapest Development Centre (BDC) comes in the wake of a grant agreement signed by the country’s government with the EU.

Supply malaise continues
26 August, 2020
It has been said that many of the jobs we will need in 20 years’ time have not yet been invented. But you can bet your bottom dollar that we will still need engineers in 20, 40, even 200 years’ time. In fact, increasingly complex technological societies – e.g. ones where the exploitation of underground space continues to expand – will probably need even more engineers than they do today.

Covid-19 adds nine months and £233m to Tideway
26 August, 2020
In an operational update to investors, Bazalgette Finance has revealed that construction work on Tideway will likely be completed in the first half of 2025 – nine months later than planned.

Robbins TBM overcomes tough Turkish geology
26 August, 2020
US-based TBM maker Robbins is celebrating another breakthrough, this time in Turkey. In July an 8m-diameter Robbins single shield TBM completed the first tube of the Bahçe-Nurdağı high-speed railway project in the southeast of the country.

Shaft construction rethink at Yorkshire polyhalite mine
25 August, 2020
In a letter to local residents, mining giant Anglo American has confirmed its intention to abandon the use of drill and blast for an intermediate shaft at its deep potash and polyhalite mine near Whitby, North Yorkshire. Instead it will use ‘blind boring’.

Muck disposal on a grand scale
25 August, 2020
Tideway (the so-called ‘super sewer’) is the biggest water infrastructure project in Europe and aims to rid the River Thames of millions of tonnes of raw sewage inflows every year. Julian Champkin reports on the progress so far

Ground freezing
25 August, 2020
Artificial ground freezing is an environmentally-friendly construction technique which provides temporary excavation support and groundwater control during tunnel construction. This method comes into its own when tunnels and shafts need to be built in difficult geological and hydrological ground conditions.

A Kit of Parts
25 August, 2020
Precast concrete segments are made to exacting tolerances and demand streamlined manufacture and transportation. Julian Champkin investigates the challenges