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Putzmeister solution at Malmo

Putzmeister solution at MalmoThe concrete trackbed in the twin-tube, 6 km-long Malmo city tunnel has to be installed without major vibration at a rate of 15-20 m/h. Maximum precision is required ... More Information

Suspected methane explosion at Pike River mine in New Zealand

Suspected methane explosion at Pike River mine in New ZealandThe entrance adit to Pike River coalmine is 2.3 km-long, 5.5 m-wide and 4.5 m-high. It was driven uphill near the top of the Paparoa ... More Information

Archidona tunnel excavation complete

Archidona tunnel excavation completeConstruction of the single bore, twin track Archidona tunnel on the Archidona-Arroyo de la Negra section of the Antequera-Granada high speed line was completed on ... More Information

Bauma China showcases the world's best

Bauma China showcases the world's bestTaking place this week at the Shanghai New International Expo Centre, Bauma China is the leading international trade fair in Asia for all sectors of the ... More Information

Brenner Base Aica-Mules pilot bore breaks through

Brenner Base Aica-Mules pilot bore breaks throughOn 03.11.2010, a 6.3 m-diameter double shield TBM completed excavation of the 10.5 km-long exploratory tunnel between Aica and Mules as part of the ... More Information

EU funding reduction for Turin-Lyon line

EU funding reduction for Turin-Lyon lineOn 27.10.2010 the European Commission published its mid-term review of 92 priority Trans-European Networks infrastructure projects, co-financed by the ... More Information

Garibaldi-San Siro section of Milan M5 metro underway

Garibaldi-San Siro section of Milan M5 metro underway Work starts on 14.11.2010 in Milan on the 6.7 km-long Garibaldi-San Siro section of the M5 metro line including 10 stations: Monumentale, ... More Information

ES Rubber Industries seeks more representation

ES Rubber Industries seeks more representation ES Rubber offers the tunnelling industry tailor-made gasket solutions adjusted to specific projects. Together with Dr Werner Grabe with more than 20 ... More Information

Atkins acquires Gimsing & Madsen

Atkins acquires Gimsing & MadsenTo boost Atkins' capability in bridge and tunnel design in Scandinavia, the group has acquired independent specialist consultancy Gimsing & Madsen. Atkins is ... More Information

Key executive appointment at Normet

Key executive appointment at NormetNormet Group now employs 540 professionals worldwide to sustain its EUR90 million turnover. The company develops, manufactures and markets underground equipment ... More Information

Sochi tunnel holes through

Sochi tunnel holes through On 12.10.2010, the top heading of the single-track 441 m Krasnaya Polyana tunnel no 4 holed through at km 37 of the Adler-Alpika Servis combined railway and motorway that ... More Information

tunnelbuilder.com - first news source for the tunnelling industry

tunnelbuilder.com - first news source for the tunnelling industryOnly one tunnelling website on earth updates every day of the week, including weekends! Whenever there is important news for our ... More Information

Veteran Robbins goes back to work in Faroe Islands

Veteran Robbins goes back to work in Faroe IslandsIn an era when the retirement age does nothing but increase, a 26 year-old Robbins main beam TBM keeps on proving the point. The 3.35 m-diameter ... More Information

Large tunnels rig from Atlas Copco

Large tunnels rig from Atlas CopcoThe Boomer XL3 D has been developed by Atlas Copco with a traditional direct control system, placing great emphasis on the interaction between operator and machine. ... More Information

Aker Wirth roadheader success in Brisbane

Aker Wirth roadheader success in BrisbaneFour Aker Wirth T3.20 heavy-duty roadheaders are at work on different sections of the Airport Link tunnel project in Brisbane, Australia. The machines weigh ... More Information

Robbins EPBs at Zhengzhou Metro

Robbins EPBs at Zhengzhou MetroA pair of Robbins 6.3 m-diameter EPBs will excavate parallel Zhengzhou Metro Line 1 tunnels for 3.6 km at shallow depths through four downtown stations between Kaixuan ... More Information

Scooptrams get ground engaging bucket

Scooptrams get ground engaging bucketAtlas Copco has announced its new GIII bucket for Scooptrams that will save loading time and reduce fuel consumption. When equipped with ground engaging tools, ... More Information

Piazzale Bologna Stretch of Rome B1 metro completed

Piazzale Bologna Stretch of Rome B1 metro completed The contract for the new metro B1 line was awarded to the JV Salini Costruttori - Tecnimont by the client, Roma Metropolitane. The JV awarded SELI ... More Information

Herrenknecht triumph at Gotthard

Herrenknecht triumph at GotthardThe breakthrough of the eastern tube at the Gotthard Base Tunnel on 15.10.2010 not only completed a final link in the world's longest rail tunnel, but also signed up ... More Information

Vital BASF and MEYCO contributions at Gotthard

Vital BASF and MEYCO contributions at GotthardAt the Gotthard base tunnel, which holed out on 15.10.2010 as the world's longest rail tunnel, BASF supplied concrete admixtures for around 20 km of the ... More Information

Ross Dimmock joins TAM-Normet

Ross Dimmock joins TAM-NormetInternationally-recognized as an expert on sprayed concrete tunnelling design, Ross Dimmock has taken up an appointment as regional director of TAM International group. ... More Information

Gotthard breaks through as longest rail tunnel

Gotthard breaks through as longest rail tunnelThe 57 km-long Gotthard base tunnel, first suggested in 1947 by Basel engineer Carl Eduard Gruner, broke through at 14.20 local time on 15.10.2010. It ... More Information

Tunnel Design and Construction

Tunnel Design and ConstructionThe northeast Asia presentation of this popular international event takes place in Hong Kong 24/25 November, 2010. Focus is on best practice strategies for cost ... More Information

Deepest rescue shaft ever drilled

Deepest rescue shaft ever drilledAfter 33 days drilling, on 09.10.2010, a Schramm T130XD (Layne Christensen www.laynechristensen.com/Boyles Bros Geotec www.geotec.cl, US/Chile) top head rig ... More Information

Expomatec 2011 for Madrid

Expomatec 2011 for MadridExpomatec is designed as a meeting point for supply and demand within the civil works, mining machinery and infrastructure sectors, focussing on boosting exhibitor ... More Information

PPS guidance system for Limmern

PPS guidance system for LimmernThe 8.03 m-diameter, 24% gradient Limmern access tunnel at Tierfehd in the Swiss canton of Glarus poses a challenge for both the Aker Wirth TBM and its PPS guidance ... More Information

Suruc water tunnel starts in Turkey

Suruc water tunnel starts in TurkeyThis month the 7.83 m-diameter SELI TBM Double Shield will start excavation of the 17.2 km Suruc water tunnel in Southern Turkey. Tunnel elevation is at an ... More Information

Big 5 PMV exhibition in Dubai

Big 5 PMV exhibition in DubaiThe fourth edition of the Big 5 PMV construction machinery show takes place in Dubai from November 22-25, 2010. For the first time, visitors will be able to travel to ... More Information

Srisailam project hits the brakes

Srisailam project hits the brakesIndia's three-decades-old Srisailam Left Bank Canal project SLBC, previously known as the AMR project, has stalled due to reported non-payment of contractors. The ... More Information

Marketing agent required for North America

Marketing agent required for North AmericaEin Shemer Rubber Industries is seeking a representative for marketing rubber sealing gaskets to the North American tunnel construction industry. For ... More Information

Progress at Hallandsas rail tunnel

Progress at Hallandsas rail tunnelSeventeen years since the first abortive start on the 8.6 km-long Hallandsas rail tunnel the first tube between Forslov in the south and Bastad in the north finally ... More Information

Oshlid road tunnel opens to Iceland traffic

Oshlid road tunnel opens to Iceland trafficThe 5,435 m-long single-tube, two-lane Oshlid (or Bolungarvikur) tunnel opened to traffic on 25.10.2010. Original plans were to place the tunnel nearer the ... More Information

New small Boomer from Atlas Copco

New small Boomer from Atlas CopcoAtlas Copco has launched the Boomer T1 D for narrow tunnels and mines. The machine has a Tier 3 diesel engine and an impressive array of features including improved ... More Information

Austrian Tunnelday

Austrian Tunnelday October 6-9 next week sees the 59th Geomechanics Colloquy in Salzburg, Austria, which features the annual Austrian Tunnelday. A major topic will be NATM: its design, contract ... More Information

Line 3 for Bilbao metro

Line 3 for Bilbao metroCurrently Bilbao Metro has 40.61 km of rail tracks, with 38 stations of which 22 are underground. Line 1 and Line 2 serve the city centre and the Greater Bilbao area. The new ... More Information

Bilbao Metro Line 3 Txurdinaga-Casco Viejo alignment

Bilbao Metro Line 3 Txurdinaga-Casco Viejo alignmentFrom the beginning of the stretch (km 3+400 to km.4+350) the design consists of a double-track tunnel 950 m long of 58 m2 in cross section. In the ... 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