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Peter Stauffer - the face of CAT for the tunnelling industry

Peter Stauffer - the face of CAT for the tunnelling industryIn a relatively short time we at tunnelbuilder ltd came to know Peter as a great friend as well as a valued colleague. He first came ... More Information

Construction of Diabolo Project in Belgium to Start Soon

Construction of Diabolo Project in Belgium to Start SoonDiabolo, the northern connection with the Brussels-Mechelen-Antwerp route, is a next step in improving Brussels airport's accessibility by ... More Information

Monte d'Oro Tunnel Breaks Through on Road Link Between Italy and Slovenia

Monte d'Oro Tunnel Breaks Through on Road Link Between Italy and SloveniaConstruction of the motorway link between Lacotisce, in Trieste province, and the Rabuiese Pass between Italia and Slovenia ... More Information

New Low Profile Team from Atlas Copco

New Low Profile Team from Atlas CopcoThe Scooptram ST1030LP and the Minetruck MT436LP are two new vehicles designed to optimize the economic, mechanized extraction of ore in low seam ... More Information

Spain Invites Tunnelbuilder Readers to International Congress and Exhibition

Spain Invites Tunnelbuilder Readers to International Congress and ExhibitionThe Spanish Tunnelling Association (AETOS) organises an international tunnelling congress and technical exhibition in ... More Information

Herrenknecht Expands with New Plant in India and More Trainees

Herrenknecht Expands with New Plant in India and More TraineesHerrenknecht is the technology and market leader in mechanized tunnelling and the only company on the market that supplies ... More Information

Tunnelling Begins at Devil's Slide in California

Tunnelling Begins at Devil's Slide in CaliforniaDevil's Slide, a winding and precarious stretch of California's Highway 1 which soars above the Pacific Ocean, was carved into the mountain. ... More Information

Track Dualling on Milan-Lecco Rail Line

Track Dualling on Milan-Lecco Rail LineThe dualling of the Carnate Usmate-Airuno section on the Milan-Lecco rail line will improve the suburban train service provided by Line S8 from Milan via ... More Information

Lovat Receives Order for TBM for Line 9 of Beijing Metro

Lovat Receives Order for TBM for Line 9 of Beijing MetroLovat recently signed a contract to supply a new RME246SE earth pressure balance tunnel boring machine to the Beijing Urban Construction Group ... More Information

Long Pipejack in New Zealand

Long Pipejack in New ZealandA 55-tonne Herrenknecht AVND 1800 microtunnelling machine, painted in Canterbury colours and nicknamed 'Dora the Bora', completed the first underground stretch of ... More Information

Colombia Releases Pre-bidding Rules for South America's Longest Road Tunnel

Colombia Releases Pre-bidding Rules for South America's Longest Road TunnelColombia's national road and highway institute, Invias, published the pre-bidding rules for the studies, design, social and ... More Information

Second Stage of Big Walnut Interceptor Tunnel Breaks Through in Ohio

Second Stage of Big Walnut Interceptor Tunnel Breaks Through in OhioThe Big Walnut Augmentation/Rickenbacker Interceptor (BWARI) project is part of an overall programme for the City of Columbus, ... More Information

Conference on Design and Construction of Tunnels and Shafts for the DLR Woolwich Extension

Conference on Design and Construction of Tunnels and Shafts for the DLR Woolwich ExtensionThe Docklands Light Railway (DLR) Woolwich Arsenal extension is an integral part of Transport for London's ... More Information

New Life for Karahnjukar TBM at Ceneri Base Tunnel

New Life for Karahnjukar TBM at Ceneri Base TunnelTBM #1 that achieved successfully its task on the main headrace tunnel of the Kárahnjúkar hydropower project in Iceland will be the first Robbins ... More Information

First Concrete Element to be Placed on World's First Offshore Immersed Tunnel in Korea

First Concrete Element to be Placed on World's First Offshore Immersed Tunnel in KoreaIn 2005, construction commenced on two cable-stayed bridges, with main spans of 475 m and 230 m, and a 3.2 ... More Information

Construction of Deep Flood Relief Tunnel Under Way in Mexico

Construction of Deep Flood Relief Tunnel Under Way in MexicoThroughout the years, the regional landslides that affected the banks of the Río de la Compañía in Mexico Valley reached annually ... More Information

Malaysia Invites Contractors to Prequalify for Pahang-Selangor Water Transfer Scheme

Malaysia Invites Contractors to Prequalify for Pahang-Selangor Water Transfer SchemeContractors have until 19th September, 2007 to prequalify for the construction of the first package, which is also ... More Information

Ministry of Infrastructure and City of Milan Sign Agreement for Metro Lines in Milan

Ministry of Infrastructure and City of Milan Sign Agreement for Metro Lines in MilanDuring a meeting on 31st July, 2007 between minister for infrastructure Antonio Di Pietro, mayor of Milan ... More Information

TBM Finish on A86 Tunnel in Paris

TBM Finish on A86 Tunnel in ParisTunnelling on the second, 5.5 km section of the A86 double-deck tunnel linking Pont Colbert in Jouy-en-Josas, south of Versailles, and the A13 motorway in Vaucresson ... More Information

Recent Infrastructure Projects Motivate Hunter Personnel (UK) to Look to Spain for Engineering Expertise

Recent Infrastructure Projects Motivate Hunter Personnel (UK) to Look to Spain for Engineering ExpertiseAs we all know over recent years Spain has been alive with infrastructure projects ranging ... More Information

Sika and Putzmeister Apply Efficient Shotcrete and Concrete at Schmuecke Tunnel

Sika and Putzmeister Apply Efficient Shotcrete and Concrete at Schmuecke TunnelThe two 1,720 m and 1,729 m-long tunnels are part of the new construction section of the A 71 motorway between ... More Information

Lok Ma Chau Spur Line Inaugurated in Hong Kong

Lok Ma Chau Spur Line Inaugurated in Hong KongThe Kowloon-Canton Railway Corporation (KCRC) on 15th August, 2007 celebrated the commencement of service of Lok Ma Chau spur line of the East ... More Information

Mega Tunnel Projects: Myth or Reality?

Mega Tunnel Projects: Myth or Reality?At first view, mega tunnel projects seem science fiction, a theatre of dreams, with little connection to reality. And yet some of them are already in operation ... More Information

Kops II Hydro Nears Completion in Austria

Kops II Hydro Nears Completion in AustriaIn west Austria, construction of the new 450 MW Kops II pumped storage power plant by Vorarlberger Illwerke, the project owner, is nearing completion ... More Information

First Tunnel Section on Kallang-Paya Lebar Expressway to Open in October in Singapore

First Tunnel Section on Kallang-Paya Lebar Expressway to Open in October in SingaporeFrom 26th October, 2007, motorists will be able to move between the Pan-Island Expressway (PIE) and the East ... More Information

Martin Knights - First 100 days as ITA President

Martin Knights - First 100 days as ITA PresidentJust three months since the ITA Congress in Prague, and Martin Knight's election to the presidency, and already two ad-hoc meetings with the ITA ... More Information

Innovative Chemistry in World's Longest Railway Tunnel

Innovative Chemistry in World's Longest Railway TunnelThe new edition of BASF's innovation podcast "Chemistry of Innovations" talks about the applications of construction chemicals in extreme ... More Information

UK Invites Consultants to Bid for Support to Planning, Design and Construction of Thames Tideway

UK Invites Consultants to Bid for Support to Planning, Design and Construction of Thames Tideway TunnelUnder pressure from the European Commission whose urban waste water directive requires that ... More Information

Lovat Receives Order for TBM in Spain

Lovat Receives Order for TBM in SpainLovat has signed a contract with a joint venture whose members are FCC, OHL and Copisa for the supply of a new Lovat RME270SE earth pressure balance tunnel ... More Information

Unique Application of Formwork for East Side CSO Tunnel Project in Portland

Unique Application of Formwork for East Side CSO Tunnel Project in PortlandIn Portland, Oregon, a major 20-year USD1.4 billion overhaul programme dedicated to cleaning up the city's Willamette River ... More Information

Italy and France Sign Joint Request for EU Funding for Lyon-Turin High Speed Link

Italy and France Sign Joint Request for EU Funding for Lyon-Turin High Speed LinkItaly and France have made on 16th July, 2007 a joint request for European financing for the Lyon-Turin high speed ... More Information

DLR Completes Tunnel Extension to Woolwich

DLR Completes Tunnel Extension to WoolwichThe tunnel extending the Dockland Light Railway (DLR) under the River Thames to Woolwich Arsenal in East London was completed on time on 23rd July, 2007 as ... More Information

Herrenknecht Appoints New North American Sales Manager

Herrenknecht Appoints New North American Sales ManagerHerrenknecht, the world renowned manufacturer of TBM, shield and mixshield tunnelling machines, microtunnelling systems, shaft sinking ... More Information

TBM Begins Boring Sierra de La Cabrera on Madrid-Valencia High Speed Line

TBM Begins Boring Sierra de La Cabrera on Madrid-Valencia High Speed LineTBM excavation of the longest tunnel has commenced on the future 914 km Madrid-Castilla La Mancha-Valencia-Murcia ... More Information

Atlas Copco Introduces New COP 2238 Rock Drill

Atlas Copco Introduces New COP 2238 Rock DrillAtlas Copco is introducing COP 2238, a new 22 kW hydraulic rock drill for the hole range 51-76 mm. The rock drill is intended for drifting and ... More Information

Overcoming Fault Zones at Bodio on Gotthard Base Tunnel

Overcoming Fault Zones at Bodio on Gotthard Base TunnelLot 452/554 between Bodio and Faido, in the south section of the Gotthard base tunnel, is built by consortium TAT, whose partners are Implenia, ... More Information

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Tunnelling News

4000-tonne machines dig arterial route under Melbourne's west

The West Gate Tunnel Project is in full swing beneath Melbourne's inner west, with tunnel boring machines (TBMs) Bella and Vida at the helm... More Information

Gotthard drilling machine gets no further - now it has to be blown up

Forced break in the Gotthard road tunnel: After 190 meters, the drilling machine working on the second tube has come to an end for the time being... More Information

Construction begins on 6 Cross Island Line Phase 2 stations

Tunnel Boring Machine measuring 12.8m in diameter. The machine will “bore through the ground only once for the construction of the tunnel which ... More Information

Tunnel boring machine returns after installing $22 million outfall

A 19.5 tonne tunnel-boring machine docked at Onehunga Wharf on Friday afternoon after successfully tunnelling the $22m Clarks Beach Outfall over ... More Information

Scarborough Subway Extension tunnelling progresses following maintenance stop

The remaining portion of the tunnel will be delivered by Scarborough Transit Connect, the development partner for the project's stations, rail and ... More Information

World's Deepest Underwater Tunnel to Have Cars Drive 16 Miles Under the Sea

Norway is building what is to become the longest and deepest road tunnel under the sea. The Rogfast project, measuring 26.7 kilometers (about 16.5 ... More Information

Tunnelling underway for National Grid’s 3.4km power tunnel in Snowdonia

The tunnel boring machine (TBM) Buddug has commenced excavation of National Grid’s 3.4km power tunnel in Wales’ Eryri National Park, otherwise known as Snowdonia. The tunnel is part of ... More Information

CPK signs contract for construction of HSR tunnel in Łódź

The contract for the construction of a 4.6 km long, 14-metre wide High-Speed Rail (HSR) tunnel will be carried out by construction company PORR. The project is valued at approximately PLN ... More Information

Underneath the busy Baltimore streets, the Howard Street Tunnel gets its makeover

A squad of construction workers descend daily under the streets of Baltimore. They labour deep down, in the semi-secret and highly restricted ... More Information

London Power Tunnels Milestone

We're thrilled to announce that our second 2.5km high-voltage circuit between Hurst and Crayford is now live. This £1 billion project is rewiring London, strengthening energy supply, and ... More Information

U.S. Tunneling Professionals Convene in Dallas at RETC 2025

The event drew approximately 1,400 people. Another highlight of the conference was the presentation of the now annual Underground Construction ... More Information

Construction of NY and NJ GatewayTunnel hits halfway mark

People are looking down at the ground from the Highline on Manhattan's West Side. Some parts of the new train tunnel structure ... More Information

Silicon Valley BART extension seeks new tunneling contractor

Silicon Valley BART extension seeks new tunneling contractor for construction. Maguire told reporters during a briefing Monday morning. He noted that VTA is trying to fill a $1.2 billion ... More Information

Tunneling In The Digital Age: Rethinking Subsurface Infrastructure

But successful construction is just the start of the journey. Underground infrastructure is a long-term investment—just look at the London Underground ... More Information

Sydney Moves Forward with Final Tunnelling for Harbour Project

Sydney prepares for the arrival of the largest TBMs in the Southern Hemisphere as the Western Harbour Tunnel project enters its final tunnelling ... More Information

Metrolinx seeks help to name 2 of its massive Ontario Line tunnel digging machines

Metrolinx is now accepting names for two of its giant tunnel boring machines (TBMs), which will be used for twin 16-metre-deep and six-kilometre-long ... More Information

Deutsche Bahn awards contract for Munich S-Bahn project

The contract involves structural works for the expansion, including the construction of tunnels and an underground station. The Tunnel Ostbahnhof JV, ... More Information

Excavation completed on Italian side of Brenner Base Tunnel

The tunnel boring machine (TBM) named “Flavia” successfully bored through the Alps beneath the Mules 2–3 section, reaching the Austrian border. More Information

Giant tunnel borer set for Shantou Bay project

A giant tunnel boring machine has been installed for tunnelling under Shantou Bay in Shantou, South China's Guangdong province. [Photo provided to ... More Information

€0.4bn road and tunnel project in Georgia

Work is proceeding on the Kvesheti-Kobi road and tunnel scheme in Georgia. The scheme is part of a larger project, being carried out with Chinese ... More Information

Lahore to transform with Rs49 billion tunnel boring project

Pakistan, April 27 -- The federal government has approved Lahore's Rs49 billion Tunnel Boring Project, marking a major development for the city... More Information

Construction at Cleveland Hopkins International Airport

The 2,100-foot-long tunnel connects the terminal to parking facilities and the tramway leading to the RTA public rail line. During the project, two of ... More Information

AFFHOLDER AND J.F. SHEA TEAM UP ON $700 MILLION CONTRACT

The tunneling subsidiary, Affholder LLC, will lead a joint venture with J.F. Shea Construction, Inc., to build the I-35 Capital Express Central ... More Information

Factory Testing Complete on DC Water's first tunnel boring machine for the Potomac River

Mary passed all the necessary requirements and is one of two TBM's on the project. The tunnel is part of DC Water's Clean Rivers Project, to ... More Information

Work on Chennai Metro tunnel racing to a finish

The machine Flamingo, which started boring in 2023 for the tunnel linking Light House with Thirumayilai, is expected to reach the other end in ... More Information

CPK awards contract to build high-speed rail tunnel in Lodz, Poland

The tunnel, to be constructed using a tunnel boring machine (TBM), will have a ... More Information

Inside HS2: Meet London's miners working on the Northolt tunnels

We are on a tunnel boring machine (TBM) inside High Speed Two's huge Northolt tunnels. These tunnel boring machines are part of a tunnelling ... More Information

Ontario Begins Construction Of Last Tunnel Segment Of The Eglinton Crosstown West Extension

The remaining eastern portion of tunnel construction (500-meter twin tunnels) will use the sequential excavation method, with daily progress of ... More Information

Norway is building the world's longest and deepest subsea road beneath its fjords

We have subsea road tunnels which have that construction. And the new tunnel between Germany and Denmark, there they are laying down cases and put ... More Information

CERN releases report on the feasibility of a possible Future Circular Collider

The estimated cost of construction of the FCC electron–positron stage, including the tunnel and all the infrastructure, is 15 billion Swiss francs... More Information

TBM break through on Auckland's £915M wastewater megaproject completes 16.2km tunnel

Auckland's major wastewater infrastructure project, the Central Interceptor, has reached a significant milestone with the final breakthrough of ... More Information

In pics: construction site of Chongming-Taicang tunnel

A smart assembling vehicle works at "Linghang" large diameter shield tunneling machine at the construction site of the Chongming-Taicang tunnel, part of the Shanghai-Chongqing-Chengdu ... More Information

IN PICTURES: Spectacular images of the removal of HS2's huge tunnelling machine

TBM Sushila was used to construct part of the Northolt Tunnel – an 8.4-mile tunnel ... construction/london-tunnels/progress-3/northolt-tunnel/tbm- ... More Information

Historic tunnels uncovered beneath Salisbury station during £5.3M upgrade project

Engineers from Network Rail and South Western Railway have uncovered a network of tunnels and rooms beneath Salisbury station during ongoing £5.3M upgrades to the station’s forecourt... More Information

Massive $450m road project connecting Russia and Georgia with six bridges & five tunnels

Massive $450m road project connecting Russia and Georgia with six bridges & five tunnels. The new road will pass through Georgia along a trade route ... More Information

Buca Metro Tunnel Excavations Reached 50 Percent Level

Important progress is being made in the construction of the line, where four tunnel boring machines (TBMs), each 100 meters long, 7 meters wide and ... More Information

'Very promising' narrow-reef boring technology nearing rollout stage

A novel tunnel boring machine (TBM) will open up Bokoni's narrow tabular dipping PGM orebody to allow narrow-reef boring to take place, so that ... More Information

A vast undersea tunnel is being built

The 7.4 billion-euro ($7.7 billion) project is a huge undertaking, in every sense. Each section of the tunnel is colossal. These concrete structures ... More Information

National Grid gets planning permission for Grain to Tilbury upgrade with new Thames tunnel

National Grid has secured full planning approval for the Grain to Tilbury project, which includes a new power tunnel under the River Thames... More Information