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Wirth TBM Breaks Through Canale Viola Tunnel

Wirth TBM Breaks Through Canale Viola TunnelA Wirth TBM model SM 360 E/TS broke through last 27th November the 18,770 m-long Canale Viola tunnel in Valtellina valley in Sondrio province, Lombardy ... More Information

Caterpillar 988G Tunnel Loader - Mucking out in Record Time in Norway

Caterpillar 988G Tunnel Loader - Mucking out in Record Time in NorwayThe NY E39 Oysand-Thamshamn road project, near Trondheim in Norway, includes six bi-directional tunnels with a total length of ... More Information

Lovat TBM Breaks Through in Turin

Lovat TBM Breaks Through in Turin'Madama Cristina', a Lovat EPB shield TBM, broke through on 9th December, 2003 completing 2.6 km of tunnel as part of lot 4 of metro line 1 in Turin. Excavation ... More Information

Spain and Morocco Revive Fixed Link Project under Gibraltar Strait

Spain and Morocco Revive Fixed Link Project under Gibraltar StraitThe project to link Spain and Morocco with a tunnel beneath the Gibraltar Strait has been revived at a recent summit held on 9th ... More Information

Happy Holidays

For your interest, we are listing below précis of our latest printed publications, each of which is available in downloadable pdf format, and makes a very good read. Underground Mining ... More Information

Fibre Reinforcement from SI Concrete Systems

Fibre Reinforcement from SI Concrete SystemsFibermesh and Novocon are two of the best-known brand names in fibre reinforcement for shotcrete, and both come from SI Concrete Systems. By manufacturing ... More Information

Phoenix - Seals and Conveyor Belts

Phoenix - Seals and Conveyor BeltsPhoenix AG of Hamburg, Germany is a specialist producer of rubber-based products for mining, tunnelling and industrial use. For decades, the company has ... More Information

Marti Technics to Supply TBM for San Pedro Tunnel

Marti Technics to Supply TBM for San Pedro TunnelSwiss logistics and engineering specialist Marti Technics Ltd will supply a TBM to UTE San Pedro, a JV set up by Sando, Aldesa, Tapusa and Copasa, to ... More Information

NFM Technologies Delivers First TBM for Canton Metro

NFM Technologies Delivers First TBM for Canton MetroNFM Technologies, the Wirth Group's sister company, has delivered during week 47 the first of two TBMs for the Canton metro in China. The first ... More Information

EU Gives Green Light to Financing of Júcar-Vinalopó Transfer

EU Gives Green Light to Financing of Júcar-Vinalopó Water TransferThe European Union has decided to finance the Júcar-Vinalopó water transfer scheme, further to receiving the environmental ... More Information

Trans Apennine Milestone

Trans Apennine MilestoneThe 6.25 m-diameter Wirth TB 630 E/TS TBM driving the 10 km-long Ginori exploration tunnel on Italy's Trans Apennine railway has broken through on time, after three years ... More Information

Four Atlas Copco Drill Rigs at Work in Vielha

Four Atlas Copco Drill Rigs at Work in VielhaThe existing Vielha tunnel, named Alfonso XIII, was inaugurated in 1948 and was developed during the reign of King Alfonso XIII. It is over 5,240 m in ... More Information

Lovat TBM Breaks Through First LRT Extension Tunnel in Edmonton

Lovat TBM Breaks Through First LRT Extension Tunnel in EdmontonA Lovat EPB TBM broke through to the University LRT station on 8th November, completing the 293 m-long southbound tunnel of Edmonton's ... More Information

New leadership for Boart Longyear

New leadership for Boart LongyearPaul Brunner, managing director of Boart Longyear, has been appointed president and chief executive officer, effective January, 2004, to follow the retirement of ... More Information

Spanish Government Gives Go-Ahead to Huge Water Project

Spanish Government Gives Go-Ahead to Huge Water ProjectSpain's ministry of environment has approved on 31st October the Environmental Impact Statement for the controversial Ebro river transfer ... More Information

€70 Million to Rebuild Two High Speed Rail Tunnels

€70 Million to Rebuild Two High Speed Rail TunnelsThe Spanish Ministry of public works will spend €70 million -on top of the €54 million already spent- to rebuild the Montblanc and La Riba ... More Information

European Union to Strengthen Safety Rules for Road Tunnels

European Union to Strengthen Safety Rules for Road TunnelsThe transport ministers of the EU backed a directive proposal for stricter safety regulations in European tunnels, that were endorsed in a ... More Information

Weldgrip for one-stop ground and strata control

Weldgrip for one-stop ground and strata controlWeldgrip has a dedicated, purpose-built facility for the manufacture of machinery, tools and equipment for ground and strata control. Supplying a full ... More Information

Fourth Breakthrough at Lötschberg Base Tunnel

Fourth Breakthrough at Lötschberg Base TunnelAfter two years and four months, the Herrenknecht TBM which started working from Raron has completed on schedule a 10 km east tube section to the Ferden ... More Information

Hsueshan Tunnel Breaks Through

Hsueshan Tunnel Breaks ThroughTaiwan's President Chen Shui-bian, Premier Yu Shyi-kun, and Minister of transportation and communications Lin Ling-san attended the breakthrough by a Robbins TBM of the ... More Information

Hai Van Pass Tunnel Breaks Through

Hai Van Pass Tunnel Breaks ThroughA major breakthrough took place at the Hai Van tunnel on 28th October when workers on either side of the 6,247 m-long 11.9 m-wide tunnel met each other. Workers of ... More Information

First Robbins TBM for Karahnjukar - is/14

First Robbins TBM for Karahnjukar - is/14The Owner, the Consultant and Impregilo have signed off on delivery of the first of three Robbins TBMs for the Karahnjukar project in Iceland. The first TBM ... More Information

NFM Technologies to Supply Second TBM to Excavate Kazan's First Metro Line

NFM Technologies to Supply Second TBM to Excavate Kazan's First Metro LineKazmetrostroy, in charge of building Kazan's metro, has ordered a second hand TBM from NFM Technologies. This machine will ... More Information

US Department of Transport Publishes Recommendations for Bridge and Tunnel Safety

US Department of Transport Publishes Recommendations for Bridge and Tunnel SafetyThe Federal Highway Administration (FHWA) has published a report stressing that tunnels and bridges in the United ... More Information

Consultant Wanted for Major Highway Tunnel

Consultant Wanted for Major Highway TunnelA well-qualified M & E control consultant is required for the twin-tube, 18 km-long Qinling Zhongnanshan, tunnel, currently under construction as ... More Information

Tunnelling Sub-Contractor Urgently Required

Tunnelling Sub-Contractor Urgently RequiredValecha Engineering has received a design work order to commence Udaipur city's Mansi Wakal water supply project near Dewas in India, value Rs165 million. ... More Information

King Juan Carlos Inaugurates Madrid to Lleida HSL

King Juan Carlos Inaugurates Madrid to Lleida HSLKing Juan Carlos and Queen Sofia inaugurated on 10th October the Madrid to Lleida high speed line during a inaugural trip which took four hours to ... More Information

Section of A86 Tunnel in Paris Breaks Through

Section of A86 Tunnel in Paris Breaks ThroughThe Herrenknecht TBM boring the east tunnel on the A86 motorway west of Paris broke through on 14th October the first section, named VL1 and 4.5 km in ... More Information

Herrenknecht TBM to Build Martignano Tunnel in South Tyrol

Herrenknecht TBM to Build Martignano Tunnel in South TyrolA Herrenknecht hard rock single shield TBM is arriving in pieces in Trento province, Italy to drive a twin tunnel on the 4 km Martignano ... More Information

European Commission Proposes New Projects and New Funds to Dynamise Europe

European Commission Proposes New Projects and New Funds to Dynamise EuropeThe European Commission proposed on 1st October adapting the guidelines for the trans-European transport network (TEN-T) to ... More Information

Antraquip for tunnel excavation, support and specialist plant services

Antraquip for tunnel excavation, support and specialist plant servicesAntraquip Corporation offers a wide range of plant and equipment expertise in the supply, refurbishment and rebuilding of ... More Information

Dataline Tunnelling 2003 Event in Madrid

Dateline Tunnelling 2003 Event in MadridTo highlight the booming civil engineering sector, and more particularly tunnelling both at Spanish and international levels, IIR Spain organises on 28th-30th ... More Information

Code of Practice for Risk Management of Tunnel Works

Code of Practice for Risk Management of Tunnel Works The BTS has published a joint code of practice agreed with British insurers designed to promote and secure best practice for the minimization and ... More Information

Read All About It!

Read All About It!E-News Weekly from tunnelbuilder is the only weekly tunnelling market intelligence e-newsletter available from any source. This week, issue No 93 describes the punishment meted out ... More Information

World's Deepest Underground Station Mooted at Gotthard

World's Deepest Underground Station Mooted at GotthardPlans are afoot to build the world's deepest underground railway station in Switzerland, nearly one kilometre below the surface. The "Porta ... More Information

Tests to Better Understand Fire Propagation in Tunnels

Tests to Better Understand Fire Propagation in TunnelsIn recent years a number of road tunnels fires have occurred throughout Europe with catastrophic outcome. Among these are the fire in the Mont ... More Information

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Tunnelling News

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

Right track tunnel of Huangjialing Tunnel in NW China's Gansu drilled through

A staff member works on the construction site of the right track tunnel of the Huangjialing Tunnel in Linxia Hui Autonomous Prefecture, northwest ... More Information

Shetland Islands tunnels plan takes 'huge step forward' with sonar investigations

This phase will further inform the project's development and feasibility. The tunnel project, seen by locals as pivotal for improving ... More Information

Construction of the Tarande tunnel begins next week

On March 17th, in Vilnius district Construction of a tunnel and other related infrastructure will begin at Taranda and Bukiškis. This project aims ... More Information

Delhi Metro's Golden Line achieves major tunnel breakthrough;

The construction of Delhi Metro's Golden Line achieved a major milestone on Thursday as the Tunnel Boring Machine (TBM) broke through at the ... More Information

RiverRenew Tunnel Project Nearing Completion

The RiverRenew Tunnel System Project, the largest infrastructure investment in Alexandria's history, is nearing completion. More Information

Sydney Metro West tunnels enter final stretch after big breakthrough

Two tunnel boring machines (TBMs) constructing the huge Sydney Metro West tunnels have made a smashing entrance 24 metres below the surface. More Information

Chennai Metro Rail launches first tunnel boring machine for underground tunnelling in Kolathur

Corridor 5 begins at Madhavaram Milk Colony and connects through Koyambedu, Porur, Alandur and other residential/commercial areas of the city to ... More Information

Element Six, Master Drilling Announce Tunnel Development Partnership

Element Six and Master Drilling will deliver a diamond-enabled solution designed to increase tunneling development speed, reducing costs and minimize the environmental impact of tunnel ... More Information

Gateway Project Tunnel Connecting NY and NJ Moves Forward

Five Gateway contracts have been awarded so far, including one on Predergast's first day for construction on the Manhattan side of the tunnel... More Information

HSR Xi'an – Yan'an: Completion of All Tunnels in the Project

The HSR Xi'an – Yan'an has completed the excavation of all tunnels, including the Tongchuan Tunnel. This is a key milestone in the construction ... More Information