Tunnelbuilder Promoting the world's tunnelling industry to a huge qualified audience

View the Spanish Tunnelbuilder website View the Italian Tunnelbuilder website

Archive - News

Featured News

Breakthrough in Paci tunnel

Breakthrough in Paci tunnel

On 06.11.2014, construction of the 1.7 km-long Paci tunnel was completed on the southbound carriageway of Italy’s A3 motorway, between Scilla and Campo Calabro. It is the longest tunnel among ... More Information

Managers sought by iPS

International recruitment specialist iPS is seeking qualified and experienced managers to fill the following tunnelling vacancies: 00542 Planning manager ... More Information

Montenegro highway financed

Montenegro highway financed

On 30.10.2014 the loan agreement was signed between Montenegro and the Chinese Exim Bank on financing construction of the first 41 km-long section Smokovac-Uvce-Matesevo of the 169.2 km-long ... More Information

Frejus tunnel holed

Frejus tunnel holed

On 17.11.2014 the TBM completed the 12,878 m emergency tunnel parallel to the existing Frejus tunnel (T4) and arrived at Bardonecchia, Italy, where it will be dismantled during the next three ... More Information

APAC conference

APAC tunnels and bridges conference will take place in Kuala Lumpur, Malaysia 15-16th April, 2015. Click for conference agenda. More from roohi.taragi@fleminggulf.com. 47/14. More Information

Ritchie Bros’ Caorso auction

Ritchie Bros’ Caorso auction

Ritchie Bros will hold an unreserved public auction of plant and equipment at their premises in Caorso, Italy on 04.12.2014, where some 900 plant items will be for sale. Click here and visit ... More Information

Guidance systems news from PPS

Guidance systems news from PPS

At Poltinger Precision Systems we strive every day to improve both ourselves, and our products. To suit our customers’ needs, and to implement their ideas for an even better PPS Guidance ... More Information

Val di Sambro holing

Val di Sambro holing

On 08.11.2014 breakthrough was achieved on the 3.9 km-long Val di Sambro tunnel on A1, between Firenze and Bologna. The contract was awarded to the JV Vianini Lavori/Toto/Profacta. Click it/21 ... More Information

Milan M4 metro update

On 11.11.2014 the final breakthrough in the first tunnel of Milan's M4 metro occurred at the Forlanini FS site. Excavations began last April, and to date 65 percent of the contract for the ... More Information

Meyco Versa launch

Atlas Copco has introduced its Meyco Versa mobile shotcreting unit suited to mid-size tunnels. Read the press release and contact michael.seitz@ch.atlascopco.com. 46/14 More Information

TBM turnaround at Waterview

TBM turnaround at Waterview

On 29.09.2014 the TBM Alice completed the southbound tube of the 2.4 km Waterview tunnels from Owairaka to Waterview. The tunnels will connect Auckland's Southwestern and Northwestern motorways. At ... More Information

Acimex segment handling at Riyadh metro

French manufacturer Acimex supplies vacuum devices for the handling of precast concrete segments in tunnels. Acimex vacuum erector and segment trolley will be used in the 10.16 m-diameter EPB ... More Information

Crossrail progress

Crossrail progress

On 20.10.2014 TBM Ellie finished her journey at Victoria Dock Portal in east London, completing the 900 m drive from Limmo Peninsula, near Canning Town, to Victoria Dock Portal in just six weeks, at ... More Information

Grand St Bernard safety tunnel

Grand St Bernard safety tunnel

On 20.10.2014 construction of Grand St Bernard safety tunnel (GSS) restarted, following agreement with the old contractor JV Condotte that only 11 of 23 cross passages originally intended will be ... More Information

Terratec milestones in Delhi

Terratec milestones in Delhi

Eight Terratec 6.52 m-diameter EPBs are at work on Delhi Metro Phase 3. During the last two months, four significant breakthroughs have been recorded, and another 14 will be accomplished during the ... More Information

Gotthard track installed

Gotthard track installed

On 31.10.2014, installation of the non-ballasted track was completed in the Gotthard Base Tunnel. General contractor Transtec Gotthard, at a distance of around 54 m from the south portal, cast the ... More Information

tunnelbuilder team at China Bauma

Shanghai is a long way to go for a show, and Werner is the lucky member of tunnelbuilder team to make the journey. China Bauma runs from November 25-28, and Werner will be most pleased to meet old ... More Information

Robbins Webinar

Robbins Webinar

The link for the upcoming Robbins Webinar on 18th November dealing with On-site First Time Assembly has changed to http://bit.ly/RobbinsOFTAWebinar. Questions for the discussion should be addressed ... More Information

Frejus safety tunnel progress

Frejus safety tunnel progress

On 17.11.2014, TBM Anna will break through after 300 days of work on the Frejus safety tunnel, completing construction. Mechanized excavation of Lot 2 started at the Italian end on 01.07.2013, ... More Information

Forrestfield Airport Link

The Forrestfield Line will integrate with the existing rail network in Perth, Australia and deliver an 8.5 km-long rail extension from the Midland Line east of Bayswater to Forrestfield via Perth Airport; three new stations, Airport West and Forrestfield and Consolidated Airport; and expanded and new bus feeder services. More Information

Isarco River Underpass

Consortium Salini Impregilo/Strabag has agreed with client BBT SE to start construction of the EUR300 million Isarco River Underpass, part of the southern lot of the Brenner Base Tunnel located in ... More Information

Third Robbins webinar schedule

The Robbins Company president Lok Home is hosting the company’s third webinar in mid-November, entitled Insight on Onsite Assembly: Why OFTA is Revolutionizing TBM Tunnelling. In ... More Information

Setronic ARGO at Expotunnel

Setronic Verona Srl is an ISO 9001:2008 certified company, specialized in design, manufacture and after sales service for optical beam smoke and fire detectors, opacity analyzer, calibrating and ... More Information

WTC2015 submission extended

By popular request, the deadline for abstract submissions for WTC2015 in Croatia has been extended to 01.11.2014. To date, more than 500 abstracts for WTC 2015 have been received, showing a strong ... More Information

Normet training simulators

Normet training simulators

For several years Normet Academy has used simulators as the vital part of service in hydraulic and automation, concrete spraying and scaling training programs for mining and tunnelling operators. ... More Information

Papers for Arabian Tunnelling Conference

For the second edition of the Arabian Tunnelling Conference in Abu Dhabi deadline to submit an abstract is 15 October 2014. The conference theme will be: Sustainable Tunnelling in GCC ... More Information

Ritchie Bros. breaks site records in Caorso, Italy

Ritchie Bros. breaks site records in Caorso, Italy

Ritchie Bros. Auctioneers, the world’s largest industrial auctioneer, held a record-breaking multi-million Euro auction at its site in Caorso, Italy on 02.10.2014. More than 1,360 ... More Information

Innovation in the construction of underground works

During ExpoTunnel, on October 23-24, the SIG - Italian Tunnelling Society has organized the international conference Innovation in the construction of underground works. Among the speeches on 23 ... More Information

Thimphu-Wangdue feasibility

The Thimphu-Wangdue road is classified as the primary national highway in Bhutan. Except for an undefined weak zone near the portal at Nabisa, the 10.5 km-long road tunnel road Yusipang in Thimphu ... More Information

Breakthrough in Bhutan

Excavation of the headrace tunnel from adit 1 to the de-silting chamber has been completed at Punatshangchhu-II HEP in Bhutan. The de-silting chamber helps clean up the raw water between intake and ... More Information

Invitation to Expotunnel

Invitation to Expotunnel

Expotunnel will be in Bologna, Italy from 23 to 25 October 2014, where tunnelbuilder team welcomes you to our stand D2-E1 in Hall 19. Fill out the registration form and you'll receive by email ... More Information

Caltanissetta in Sicily.

Caltanissetta in Sicily.

By 28.09.2014 EPB TBM Barbara (diameter 15.08 m, length 115 m) owned by consortium Empedocle 2, comprising CMC (leader), Tecnis and CCC, reached the 1 km mark driving the Caltanissetta tunnel on SS ... More Information

Bjornabakkane start

Bjornabakkane start

Metrostav and Havnen Anlegg have started drill/blast construction of the 1,565 m-long Bjornabakkane tunnel in Central Norway. The tunnel, commissioned by Statens vegvesen, will provide avalanche ... More Information

Northgate Link Extension update

Northgate Link Extension update

Northgate Link Extension will connect the Northgate, Roosevelt and U District neighborhoods to downtown Seattle, US and the airport. A second TBM is beginning its 5.79 km journey from the Maple ... More Information

Robbins TBM in Queensland coalmine

Robbins TBM in Queensland coalmine

In August, 2014 major progress was made at a coalmine in Queensland, Australia when a specialized Robbins Dual Mode EPB/Rock TBM was successfully rolled out after completing the first of two access ... More Information

Expotunnel on-line registration

The exhibiting companies and those that make up the Promotion Committee are working in the underground field in Italy and abroad with their innovative solutions. For example: Spea Ingegneria ... More Information

Tunnelling News

NFR achieves breakthrough in Tunnel No 8 of Sivok–Rangpo railway project

Tunnel No. 8 is one of the major tunnels of the project with a total length of 4.148 km and an additional adit measuring 1.010 km. The excavation and ... More Information

Suburban Rail Loop hits tunnelling milestone as eight TBMs arrive on site

The Suburban Rail Loop has reached a major construction milestone, with eight tunnel boring machines now on site ahead of tunnelling later this year... More Information

$16bn Hudson Tunnel project could pause again 'in two to three months'

Components of the first tunnel boring machine (TBM) that will be used for the Palisades Tunnel Project arrived at ... More Information

Hinkley Point C | TBM readied for 620m long fish return tunnel

The tunnel boring machine (TBM) that will excavate the fish return tunnel has been christened Sarah Guppy by local schoolchildren, in tribute to ... More Information

Bhopal Metro's Orange Line Tunnelling Begins

The Bhopal Metro project has recently reached an important milestone as tunnel boring machines (TBMs) have been positioned to begin digging work on ... More Information

A Chinese team rescued a $50M tunnel machine stuck 177 feet underground

Chinese engineers have pulled off a stunning rescue, saving a tunnel boring machine (TBM) stuck 177 feet underground beneath the Yangtze River. More Information

Fort Smith named finalist in Elon Musk's Boring Company tunnel challenge

The company selected Fort Smith's proposal from 487 applicants. The company says the winning project will receive construction of a one-mile tunnel ... More Information

Bengaluru: Four infrastructure firms bid for Hebbal short tunnel

Bengaluru infrastructure: Four firms, including Dilip Buildcon and Max Infra, bid for BDA's Rs 1086 crore Hebbal short tunnel project... More Information

TBM readied for Montreal's Blue Line extension

A custom-made 9.7m-diameter tunnel boring machine (TBM) has been assembled and lowered ready to excavate the tube from the future Vertières stop to ... More Information

$11.5B Brenner Base Tunnel Nears End of TBM Excavation

With TBMs Olga and Wilma closing in, the 55-km rail project shifts from excavation to systems integration ahead of its planned 2028 opening beneath ... More Information

$6.75 Billion Unlocked for Turkey's Bosphorus Rail Project

Multiple Earth Pressure Balance (EPB) Tunnel Boring Machines (TBMs) will need to be mobilized to carve out the subterranean corridors leading up to ... More Information

Tunneling for Nashville's underground Tesla project has begun

The Boring Company said that the first three weeks of the project will consist of the Prufrock-MB1, a machine that will help carve out the tunnel, ... More Information

Hudson Tunnel Project construction resumes

I look forward to celebrating the launch of our tunnel boring machines through the Palisades once GDC has assurance it will receive the steady flow ... More Information

Lower Thames Crossing

British suppliers could meet 90% of low carbon steel requirements. The proposed machine would be 16.4m in diameter, large enough to create a three‑lane tunnel bore, and is intended to dig ... More Information

Inside the Tunnel Boring Machine, Southampton Link Main project

A six-tonne tunnel boring machine is digging deep below the ground in Hampshire to help keep the county's taps and rivers flowing... More Information

TBM maestro inspects sites ahead of massive tunnel drive

The first machine components have arrived for the tunnel boring machines (TBMs) to be deployed on the Suburban Connect sites in Melbourne. More Information

Metrolinx provides major updates on subway and LRT projects across the GTA

Tunnel boring is advancing on multiple projects, with Scarborough's TBM ... Metrolinx says “Diggy Scardust,” the project's tunnel boring machine, is now ... More Information

Work in Progress: High-tech TBMs ready to carve underground corridor

The Bhopal Metro Rail Project is transitioning into its most challenging and sophisticated phase as two state-of-the-art Tunnel Boring Machines (TBMs) ... More Information

Sarens helps extract TBM at BC water supply project

The Annacis Water Supply Tunnel Project aims to increase the reliability and capacity of the water supply system in New Westminster, British Columbia. When complete, the tunnel will ... More Information

Judge rules in favor of New York and New Jersey for now in $16B tunnel fight with Trump

A federal judge ruled Friday to temporarily block the Trump administration from suspending federal disbursements for the Gateway Tunnel Project... More Information

Webuild: award for Sustainability Report for commitment to decarbonise through innovation

This includes the large tunnel-boring machines deployed on some of Europe's most complex projects: from the Salerno-Reggio Calabria ... More Information

Clearwater update reports initial entry area is 'stable and intact'

The tunnel boring machine being used in the project remains trapped underground just ahead of where the breach occurred. The ambitious, $630 ... More Information

Tunnel Boring Machine Market Size estimated at USD 7.08 Billion

The Tunnel Boring Machine (TBM) market is experiencing significant growth, driven by increasing urbanization, infrastructure development, ... More Information

Completing the First Section of Line 3: Tunnel Boring Machine Roars as it Emerges at Balboa

The Panama tunnel boring machine emerged and completed its first major task: the first section of the Line 3 Metro tunnel. More Information

Twin tunnel-boring titans prepare to dig new road under Sydney Harbour

Twin tunnel-boring titans are preparing to launch under Sydney Harbour to dig out a new road crossing from Birchgrove to Waverton... More Information

Monica Breaks Ground on Snowy 2.0

Monica the tunnel boring machine, with the renewable energy mega-project now more. TBM Monica is among the world's most advanced tunnel boring machines... More Information

Snowy 2.0 sets new tunnel boring machine to work, completes 46 underground concrete pours

Snowy 2.0 has set to work a fourth tunnel boring machine, a $75 million piece of drilling equipment purpose built to complete excavation of the huge pumped hydro project’s “geologically ... More Information

World's 'largest' underground assembly of tunnelling machines happening beneath Sydney

Workers are craning into place about 167 major pieces that will form the first of two giant boring machines. Once assembled like giant Meccano sets, ... More Information

Tunneling Begins on Major Water Pipeline for South Hillsborough

TAMPA, Fla. — Tampa Bay Water has begun construction on a major underground pipeline project aimed at meeting rising water demand in southern Hillsborough County, where population growth ... More Information

The massive £3billion tunnel designed to connect two continents under the sea

The construction of a huge underwater multi-tiered tunnel is underway in Turkey, that will create a direct route from Asia to Europe - and is expected to carry 1.3 million passengers a ... More Information

Riederwald Tunnel in Frankfurt is further delayed

Traffic was supposed to start flowing through the controversial Riederwald Tunnel in Frankfurt in 2033. But that's unlikely to happen. The €1.5 billion project is facing further delays – ... More Information

What happens to our metro tunnel boring machines when they hit the end of the line?

These mechanical behemoths were Betty and Dorothy, the tunnel boring machines tasked with digging the Sydney Metro West tunnels. Loading. The ... More Information

The incredible £2.8bn underwater tunnel connecting Europe and Asia

A huge new tunnel will connect Europe and Asia - and construction has already started. The Great Istanbul Tunnel is a major project. It will carry ... More Information

China develops "smart brain" for tunnel boring machines to boost underground construction

A team from Hunan University in central China has collaboratively developed an intelligent operating system for tunnel boring machines, giving these massive underground giants a "smart ... More Information

How China rescued highway project under Yangtze River

The incident occurred in February 2023 during construction of the 6.4-kilometer Jiangyin–Jingjiang Yangtze River Tunnel. Midway through excavation, at ... More Information

HS2 final tunnel drive to Euston starts next week

A team from SCS will drive a 4.5-mile twin-bore tunnel linking Old Oak Common to Euston using two tunnel boring machines, Karen and Madeleine. More Information

Work begins on £48M Knutsford sewer upgrade featuring 1.8km stormwater tunnel

Sean Reid, United Utilities county business lead for wastewater in Cheshire said: “This project highlights our ongoing commitment to improving water ... More Information

$14.6M boost moves Gering–Fort Laramie Canal Tunnel project forward

After nearly six years of planning, construction is moving forward on the Gering–Fort Laramie Canal tunnels... More Information

Webuild: second breakthrough at Trebisacce Tunnel along Jonica State Road 106

Project will help transform Jonica State Road 106 into a strategic corridor linking Ionian coasts of Calabria, Basilicata and Puglia... More Information