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Advertisers of the year

Advertisers of the yearWhile tunnelbuilder is free to web and readership driven, somebody has to pay the tab. Our advertisers, who are readers themselves, are the people to thank. Amongst these, ... More Information

ES Rubber to supply Israel high speed tunnels

ES Rubber to supply Israel high speed tunnelsThe Tel Aviv-Jerusalem high speed railway tunnel project will be built by two joint venture contractors. One comprises Pizzarotti of Italy with Shapir of ... More Information

Newsfeed keeps you up to date

Newsfeed keeps you up to dateGet your daily tunnelling news fix from tunnelbuilder by clicking on the newsfeed main menu button. Updated continuously by Google in real time, the 10 most recent TBM ... More Information

New CEO for NFM Technologies

New CEO for NFM TechnologiesAlain Deleard is the new CEO of NFM Technologies, replacing Luc Devaux. NFM Technologies, which exports 75% of its products, exceeded EUR100 million turnover in 2010. The ... More Information

Putzmeister increases worldwide customer support

Putzmeister increases worldwide customer supportPutzmeister Iberica in Madrid has set up a 24/7 technical service hotline for emergencies. A qualified technician will be available to provide ... More Information

Rabat Tunnel des Oudayas open to traffic

Rabat Tunnel des Oudayas open to trafficOudayas tunnel is part of the Bouregreg valley development project in Rabat, capital of Morocco. The new route connects the river shore and the ocean coast, ... More Information

Salvador Injections solving sealing problems

Salvador Injections solving sealing problemsFor more than 30 years Italian company Salvador Injections has been working at strengthening, consolidation and waterproofing of wall structures. Over the ... More Information

RETC underway in San Francisco

RETC underway in San FranciscoThe much-anticipated RETC biennial tunnelling event starts at the Marriott Marquis in San Francisco on Sunday 19th June, 2011. The exhibition in the Yerba Ballroom is a ... More Information

GIA Swedvent fans for China

GIA Swedvent fans for ChinaThe new generation of Swedvent fans features improved silencers filled with processed mineral wool to reduce high frequency sounds. The results are dramatic over the whole ... More Information

Saint-Oyen bypass approved

Saint-Oyen bypass approvedAnas has approved the design for the 4,403 m Etroubles and Saint-Oyen bypass on road SS 27 to the Gran San Bernardo pass in Valle d'Aosta. The project includes the ... More Information

Palude excavation holes with difficulty

Palude excavation holes with difficultyOn 18.05.2011 CMC (Ravenna) broke through the south bore of the 1,166 m Palude tunnel, Maxi lot 1 of the Quadrilatero-Marche-Umbria. Several difficulties were ... More Information

TBM progress on Barcelona drives

TBM progress on Barcelona drives On the Madrid-Barcelona-French border high-speed railway line, Herrenknecht TBM Gerunda reached the Parc de la Devesa shaft on 17.05.2011, after boring 885 m of the ... More Information

World's highest road tunnel

World's highest road tunnelOn 25.05.2011 work began on the 7 km-long Trola tunnel in south-western Sichuan province on the 2,415 km-long Sichuan-Tibet highway in China. At a maximum altitude of ... More Information

Big Robbins breaks out at Niagara

Big Robbins breaks out at Niagara The 14.4 m-diameter Robbins Main Beam TBM, the largest of its type ever produced and affectionately known as Big Becky, has broken through at Niagara. The 10.143 ... More Information

Senior engineers required for Toronto Transit expansion

Senior engineers required for Toronto Transit expansionThe Toronto Transit Commission (TTC) keeps Toronto moving with a dedication to service, safety and convenience that is unparalleled in the ... More Information

Planning engineer required

Planning engineer requiredInternational tunnelling recruitment agency iPS is seeking a planning engineer to work for a UK client. Duties include planning of overall project, logistics, construction ... More Information

Highest railway tunnel

Highest railway tunnelFenghuoshan tunnel, located in Zadoi county, Qinghai on the new 1,142 km-long Qingzang railway to Tibet at an altitude of 4,905 m ASL, is the highest railway tunnel in the ... More Information

South Island Line contracts let

South Island Line contracts letLeighton Asia has been awarded two contracts by MTR Corporation for construction of the new 7 km-long South Island Line (East) in Hong Kong. The work includes 1.1 km ... More Information

Ann Lambrechts of Bekaert wins Inventor Award

Ann Lambrechts of Bekaert wins Inventor AwardToday it was announced that Ann Lambrechts, R&D manager with Bekaert has won the prestigious European Inventor Award for construction. The ... More Information

HSEQ manager wanted

HSEQ manager wantedIPS, the international personnel recruitment agency, is looking for a qualified German-speaking HSEQ manager with knowledge and experience in tunnelling construction to prepare ... More Information

Putzmeister customized shotcrete solutions

Putzmeister customized shotcrete solutionsWith concrete spraying reaches of up to 17 m and capacities up to 30 cu m/h, little wonder that Putzmeister machines are a common sight in the world's ... More Information

Aker Wirth TBMs for Koralm

Aker Wirth TBMs for KoralmAker Wirth will supply contractor Strabag AG with a pair of 9.93 m-diameter telescopic shield TBMs for the 20 km-long KAT 2 section of the 32.5 km-long Koralm tunnel on the ... More Information

Mine Radio Systems at Big Event

Mine Radio Systems at Big EventMRS will be presenting its Centrian Ethernet over leaky feeder solution at this year's Big Event in Timmins, Ontario on 18-19th May. The system provides integrated ... More Information

Tunnels and ITS symposium

Tunnels and ITS symposiumTunnels are currently the main application for ITS, intelligent transport systems. A new symposium scheduled for June 15-16th in Bergen, Norway will discuss the development ... More Information

Inaugural Expomatec fair for Madrid

Inaugural Expomatec fair for MadridExpomatec, the Spanish infrastructure, civil works, extraction and mining machinery fair, takes place 24-28th May at Feria de Madrid. This, the first in a series ... More Information

BASF additives aid concrete set at Limberg II

BASF additives aid concrete set at Limberg IIThe Limberg II hydro generating station in the Hohe Tauern high mountain range of Austria features two huge rock caverns with associated tunnel system. ... More Information

Follow the money in Brussels

Follow the money in BrusselsThe TEN-T info day on 29.06.2011 in Brussels will present the priorities for the EU transport calls for rail, river and motorway construction. Participants will be ... More Information

Early TBM completion at Lyon metro Line B

Early TBM completion at Lyon metro Line BOn 23.04.2011 Herrenknecht TBM Agata at Lyon metro Line B reached its exit shaft, some two months ahead of schedule. 300 m of the alignment is beneath the ... More Information

Unique Robbins hybrid EPB away at Sleemanbad

Unique Robbins hybrid EPB away at SleemanbadOn-site first time assembly of a 10 m-diameter hybrid EPB has been completed at the 12 km-long Sleemanbad carrier canal in Madhya Pradesh, India. The ... More Information

GIA upgrades underground cable bolter

GIA upgrades underground cable bolterThe latest mechanized grouting and cable insertion system (MEGSIS) from Swedish manufacturer GIA offers a guillotine effect cable cutter, improved piston pump ... More Information

Breakthrough for Almendral tunnel

Breakthrough for Almendral tunnel On 07.04.2011 excavation was completed on the 1.1 km-long single-tube, twin track Almendral tunnel, the major feature of the 1.67 km-long Barranco de ... More Information

Girona II tunnel excavation started

Girona II tunnel excavation startedOn 06.04.2011 the TBM Gerunda started excavation of Girona II tunnel on the Madrid-Barcelona-French border high-speed line. It will drive 1,565 m from the new ... More Information

Live bids sets record

Live bids sets recordMore than three dozen live bids are currently listed at tunnelbuilder, the largest number since this unique service was inaugurated three years ago. Live bids allows readers to ... More Information

Robbins EPB scores New Record in Zhengzhou

Robbins EPB scores New Record in ZhengzhouIn the Chinese city of Zhengzhou, soft ground tunnelling has made a speedy entrance. One of two 6.3 m-diameter Robbins EPBs at Zhengzhou metro Line 1 has ... More Information

Belgrade interceptor personnel contract renewed

Belgrade interceptor personnel contract renewediPS Personnel, who supplied a core of experienced tunnellers to assist in management and training at the Belgrade interceptor project in Serbia, have ... More Information

Espoo metro extension funded

Espoo metro extension funded On 01.04.2011 Lansimetro of Finland signed a 30 year loan agreement with the European Investment Bank (EIB) and the Nordic Investment Bank (NIB) to fund the EUR800 ... More Information

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Tunnelling News

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

Brazil's US$1bn underwater tunnel project making waves among potential bidders

The first underwater road tunnel project in Brazil is attracting interest from multiple potential bidders, an official familiar with the matter ... More Information

Element Six and Master Drilling Announce Strategic Partnership for Advanced Tunnel

Achieving high quality, nonexplosive tunnel construction with various aspects of value generated compared to traditional rock excavation methods is a ... More Information

Tutor Perini Wins a $1.2 Billion NYC Contract

A joint venture of Sylmar-based civil construction firm Tutor Perini Corp. and its subsidiary Frontier-Kemper Constructors has won a $1.18 billion contract to construct a pair of rail ... More Information

Milestone reached for $1.6b Auckland wastewater tunne

Watercare's Central Interceptor project has passed an historic milestone with the southern half of the 16.2 kilometre tunnel – Blockhouse Bay ... More Information

Elon Musk's 'Wormhole' Tunnel Promises To Carry 20,000 People Per Hour In Dubai

It’s been more than eight years since Elon Musk decided he was fed up with traffic and declared he’d start digging tunnels to revolutionize public transport across the United States. So ... More Information

First tender for Dubai’s $22bn tunnels due within days

Dubai Municipality is expected to tender the first two packages of the $22bn Dubai Strategic Sewerage Tunnels (DSST) project imminently... More Information