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Crossrail tunnelling to commence from Royal Oak

The first of eight TBMs for London’s Crossrail project is a 140 m-long, 1,000 t machine manufactured by Herrenknecht, which is currently undergoing factory testing prior to being shipped and reassembled at Westbourne Park. More Information

Happy holidays to all our readers!

The management and staff at tunnelbuilder ltd send greetings and good wishes to all our readers around the world at this festive time. It has been a tough year for some of our supporters, but a good year for the tunnelling industry, with over 500 valuable bids advertised on our front page. So eat, drink and be merry! And be thankful that our industry is proving resilient enough to survive the ongoing financial trauma facing everybody else…..51/11. More Information

Chile cross-border priorities

According to the new ten-year plan agreed by Union de Naciones Suramericanas, 31 major projects are to be undertaken in South America. Chile’s priorities have not changed, and remain: the ... More Information

Letter of intent signed for Karawanken dualling

Slovenia and the Austrian province of Carinthia signed a letter of intent on 09.12.2011 to build a second tube for the 7,864m-long Karawanken road tunnel. More Information

Robbins EPBs bore Final Meters in Zhengzhou

Robbins EPBs bore Final Meters in Zhengzhou

Zhengzhou, China is one step closer to becoming a national crossroads for rail traffic with the breakthrough of two EPBs. The 6.3 m (20.7 ft) Robbins TBMs have set a Chinese EPB record in the process, excavating up to 720 m (2,362 ft) in one month. The swift machines boring the Metro Line 1 holed through in October and November 2011—at least two weeks ahead of schedule. More Information

Atlas Copco to acquire GIA.

Stockholm, Sweden, December 16, 2011: Atlas Copco AB has agreed to acquire the underground business of GIA Industri AB from Vätterledens Verkstad AB. With the acquisition, Atlas Copco broadens its offering with products including electric mine trucks, utility vehicles and ventilation systems. More Information

Listec line type heat detector

Listec GmbH of Isen, near Muenchen in Germany is supplying its line type heat detector to two major European projects: Line C of Rome metro, and Frejus road tunnel. More Information

Crossrail unveils its first tunnelling boring machine

Crosssrail has unveiled the first of eight, 1,000 tonne tunnel boring machines that will construct the its tunnels under central London More Information

Emcor SA seeks agents to promote their products.

Emcor SA, a Spanish company that manufactures and supplies materials for the tunnelling and mining industry, is looking for agents and/or companies to introduce and sell these products in Austria, Germany, France, Finland and Russia. More Information

New Rotterdam river crossing approved

New Rotterdam river crossing approved

On 08.12.2011 Dutch transport minister Melanie Schultz van Haegen gave the green light to build the Blankenburg road tunnel, west of Rotterdam. More Information

Chile – Seli has completed the exploratory tunnel for Los Bronces mine

On November 17, 2011 just over two years after works began, the Seli TBM completed the excavation of an 8km exploratory tunnel for the Los Bronces mine. Los Bronces is one of the largest copper mines in the world, and is located near Cordigliera in the Andes. More Information

USA – The state of Virginia signs off road and tunnel contracts worth USD 3 Billion

A joint venture between Skanska Infrastructure Development and Macquarie Group worth US$2.1 Billion was approved by VDOT to build a new Midtown Tunnel and to rehabilitate the existing Midtown tunnel in Virginia. More Information

CIFA formworks for Strategic Tunnel Enhancement Programme (STEP)

As a part of the new Strategic Tunnel Enhancement Programme (STEP) awarded by ADSSC of Abu Dhabi to Impregilo for the construction of the 2 lots T02 and T03, CIFA will supply formworks for the cast lining on site. More Information

Naples Line 6 reaches Municipio

Naples Line 6 reaches Municipio

On 23.11.2011 breakthrough was achieved on the Mergellina-Municipio section of Naples Line 6 when the Wirth EPB TBM reached the exit shaft in Municipio. Excavation of the 2,902 m-long, 8.25 m-diameter tunnel below the water table started in October, 2007. More Information

MoU signed for Belgrade metro

On 18.11.2011 a Memorandum of Understanding was signed between the city of Belgrade and Alstom Transport South Europe for construction of a new EUR1billion public rail transport system. A 15-month preliminary study by Egis Rails will determine the full technical and operational features of a 15 km line (L1) with 4.5 km underground and 25 stations. Located on the southern bank of the Danube, the Y shaped line will connect the central districts of the city, linking Ustanicka-Novi Merkator to Tvornicka on one branch, to Zelesnicka Stanica Novi Beograd on the other. More Information

Normet concrete sprayer debuts in Mexico

Normet concrete sprayer debuts in MexicoNormet introduced its new Alpha series diesel hydraulic mobile concrete sprayer, the Semmco Alpha 30, at the recent CIM mining convention in Acapulco, Mexico. ... More Information

Final breakthrough for T-Connection in Norway

Final breakthrough for T-Connection in NorwayOn 13.10.2011 final breakthrough for the 9 km-long undersea tunnel of Norway's T-Connection was safely achieved by contractor AF Gruppen AS. The project, ... More Information

Italian breakthroughs

Italian breakthroughsOn 24.10.2011 breakthrough was achieved on the north tube of the Collemaggio tunnel, located between km9.244 and km10.036 on the SS318. Two days later, another tunnel holed out ... More Information

Middle East Tunnelling 2011

Middle East Tunnelling 2011This event takes place at Oryx Rotana Hotel in Doha, Qatar on 12-14th December, 2011. The region is home to some of the most significant and innovative tunnelling projects ... More Information

Robbins EPB starts Baku metro drive

Robbins EPB starts Baku metro driveA 6.3 m-diameter Robbins EPB has commenced boring the Baku metro in Azerbaijan. Together with another similar EPB, the machine will bore parallel 3.5 km-long ... More Information

Higher costs for Blanka tunnel in Prague

Higher costs for Blanka tunnel in PragueSaturday 15.10.2011 was open day at Blanka road tunnel, part of the northwest section of the Prague ring road in the Czech Republic. The construction cost is ... More Information

Middle East Tunnelling 2011

Middle East Tunnelling 2011The MEED Middle East tunnelling conference takes place in Doha, Qatar on 12-14th December, 2011. It will provide attendees with the latest information on tunnelling ... More Information

Minova acquires SDA business

Minova acquires SDA businessMinova, part of Australian group Orica, has acquired the self drilling anchor business from Atlas Copco MAI of Feistriz, Austria. Minova International is the world's ... More Information

Amsterdam-Almere metro feasibility studies

Amsterdam-Almere metro feasibility studiesThree selected consortia have completed technical and economic feasibility studies for the prposed direct metro link between Amsterdam and Almere across the ... More Information

ZED gets prestigious achievement award

ZED gets prestigious achievement awardZED Tunnel Guidance Ltd has received the Queen's Award for International Trade. The award follows the company's outstanding achievement in international trade, ... More Information

Sluiskil tunnel construction started

Sluiskil tunnel construction startedOn 05.10.2011, after a period of preparatory work, construction of the east adit of the 1,330 m-long twin tube Sluiskil tunnel under the Ghent-Terneuzen Canal in ... More Information

Breakthrough in SS77 Belfiore tunnel

Breakthrough in SS77 Belfiore tunnelOn 26.09.2011 breakthrough was achieved on the South carriageway of the 1,101 m-long Belfiore tunnel on the SS77 Val di Chienti. For more click here and it/116. ... More Information

Road tunnels manual

Road tunnels manualThe 24th World Road Congress took place in Mexico from 27.09.2011 to 30.09.2011. During the congress, the new road tunnels manual was installed online in English and French. The ... More Information

Sandvik rigs winning in Rio de Janeiro

Sandvik rigs winning in Rio de JaneiroMain contractor Odebrecht is upgrading 25 km of main highway between Barra and Santa Cruz in the southern suburbs of Rio, including construction of the 1.1 ... More Information

Robbins at AFTES International Congress in Lyon

Robbins at AFTES International Congress in LyonFind out more about high cover tunnelling at Robbins' technical session on Wednesday, 19th October at the AFTES Congress in Lyon, France. Paper title: ... More Information

VMT opens branch office in US

VMT opens branch office in USThe current dramatic growth in the US tunnelling industry has resulted in VMT opening an office in Sumner, WA to service its clients more effectively. The new facility ... More Information

Contitech commitment to sustainability

Contitech commitment to sustainabilityContitech division of Continental is a leader in rubber technical elastomer products and plastics technology. The company has introduced its sustainability ... More Information

Montcada EPB completes its task

Montcada EPB completes its taskOn 28.09.2011, 11.7 m-diameter Herrenknecht EPB Montcada reached the exit shaft after a 3,017 m drive north-south at up to 50 m depth. Its 105 m-long back-up installed ... More Information

tunnelbuilder readership hits new highs

tunnelbuilder readership hits new highsSeptember was a good month for tunnelbuilder.com, with a weekday readership high of 1,586/day and a weekend high of 983/day. Daily average was 956, which rolls ... More Information

Thames tunnels to be bored by Herrenknecht TBMs

Thames tunnels to be bored by Herrenknecht TBMsHochtief/Murphy JV will use two Herrenknecht slurry TBMs to drive the 2 x 2.6 km-long x 6 m-diameter Crossrail Thames tunnels. This brings to eight the ... More Information

Cut/cover tunnel on the SS36 at Monza in Italy

Cut/cover tunnel on the SS36 at Monza in ItalyThe link road under construction between the SS36 and the Milan motorway network crosses the municipalities of Monza and Cinisello Balsamo, through ... More Information

Tunnelling News

Judge rejects challenge to £1.7bn Stonehenge Tunnel

The High Court has thrown out a case brought by campaigners against the £1.7bn Stonehenge Tunnel project. Mr Justice Holgate said most of the ... More Information

9 of the longest underwater tunnels in the world

These stations are the first railway stations constructed under the sea and serve as emergency escape points in case of a disaster. Today, the Seikan ... More Information

EPC contractors sought for Dubai's £17bn sewer tunnels project

The strategic sewerage tunnels project by Dubai Municipality known as the Deep Tunnels Portfolio will involve the construction of wastewater assets ... More Information

The $7BN Mega-Tunnels You've Never Heard Of

But thanks to some incredible underground construction methods, Antwerp is now on course to complete a massive piece of infrastructure it's been ... More Information

3 listed & 2 Unlisted get LOA to build Mumbai Coastal Road Ext

The underground tunnel will run below Malad and Kandivali through the Mangrove creeks and a tunnel boring machine (TBM) will be used for this phase. More Information

New tunnel planned to under the Thames at Tilbury and Gravesend

ianVisits ... tunnel (c) National Grid. Construction will be done by a conventional tunnel boring machine (TBM), which will launch from a 41-metre deep shaft dug ... More Information

Third tunnel breakthrough on Guildford sewage works

A micro-TBM recently broke through on a new tunnel being built for Thames Water's project to relocate sewage treatment works in Guildford. More Information

Japan maglev train project being derailed by Shizuoka stalemate

Opposition in Shizuoka Prefecture emerged from fears the planned tunnel construction for the line could adversely affect the overall volume of water ... More Information

World's most expensive tunnel that ended up costing a whopping £2.3m a day to build

Over 5000 construction workers were employed to complete the Central Artery/Tunnel Project in the United States. More Information

Underground or Elevated Metro Rail – Which One is Better for India?

The cost of tunnel boring machines (TBM) is another significant component. The tunneling cost can be reduced by making longer tunnel contract ... More Information

From Undersea Tunnel To Station Redevelopment

The NHSRCL will construct an adjoining tunnel location as part of the package. To construct this tunnel, the Tunnel Boring Machines (TBMs) with a ... More Information

Second tunnel boring machine for Broadway Subway reaches South Granville Station

The tunnel boring machines will end their journey just before Arbutus Station, which spans two city blocks, with the west block used as the footprint ... More Information

BESIX-MTH awards Nordhavn work to Bravida

... construction of the Nordhavn Tunnel. By & Havn is tasked with developing Ørestad and the port of Copenhagen and runs the daily operations of the ... More Information

After India's first undersea tunnel, Mumbai to get its longest intra-city underground road

... construction with viaducts and modern safety measures. The Coastal Road tunnel is India's first undersea tunnel, constructed using a 12-metre ... More Information

3,200 tonne TBM delivered to France-Italy rail tunnel project

A tunnel boring machine (TBM) manufactured by German tunnelling and mining firm Herrenknecht has been delivered to the Lyon-Turin Mont Cenis base ... More Information

FPT Industrial engines power the construction of the longest immersed tunnel in the world

The construction of the Fehmarnbelt tunnel is an important addition to Europe's sustainable transport network of the future. It will offer the ... More Information

Work resumes at Silkyara tunnel after 2 months

On the instructions of the Union Ministry of Road Transport and Highways, construction work of protective nature has begun from both Barkot and ... More Information

Webuild Joint Venture awarded Pape Tunnel and Underground Stations Progressive DB contract

Webuild will lead a joint venture to develop the project for the "Pape Tunnel and Underground Stations (PTUS)" section of the Ontario Line, the new rapid transit line that will run through ... More Information

Third Tunnel Boring Machine Lowered at Panagal Park

In a significant milestone for the Chennai Metro Phase 2 project, the third Tunnel Boring Machine (TBM) has been successfully lowered at the ... More Information

T2D Project benefits

Adelaide is the country's only mainland capital city without a non-stop motorway in its metropolitan area. The existing transport network is struggling to meet demand, with more than ... More Information

LONDON'S SUPER SEWER: A last visit to the tunnels

With shafts being capped off across the #SuperSewer project, CEO Andy Mitchell paid a visit to Chambers Wharf in Bermondsey for what could be the last time he sees the vast tunnel ... More Information

SKATE Competence Matrix for Tunnelling

The Tunnelling SKATE matrix consolidates best practice and benchmarks the role levels and Skills, Knowledge, Attitude, Training and Experience criteria for most occupations involved in ... More Information

Casablanca, Madrid and the Strait of Gibraltar tunnel megaproject

The Strait of Gibraltar tunnel megaproject is one of the few engineering projects in the world with the capacity to change the geopolitical order and relations between Europe and Africa... More Information

Metrolinx - inside the tunnel

Metrolinx is sharing a rare look inside the record-breaking tunnel currently being carved out for the 7.8-kilometre Scarborough Subway Extension (SSE) project... More Information

HS2 Project Update, January 2024

HS2 is preparing to enter a critical new phase with the development of state-of-the-art rail systems that will allow passengers to enjoy some of the world’s most reliable intercity train ... More Information

Kalpataru Projects International bags orders worth Rs 3244 crore

TBM (tunnel boring machine) tunnelling scope. Advt. According to a statement, Kalpataru Projects International Ltd (KPIL) along with its joint ... More Information

UK's HS2 High-speed Rail Nears $6B Fit-out Phase

... tunnels. Under the Chiltern Hills, around 25 miles from London, two tunnel boring machines have completed 90% of the project's longest drives, of ... More Information

Akron gets approval for smaller Northside Interceptor Tunnel, but more work planned

He said the tunnel boring machine, which must be custom-built, has been put on order. "We had to bid this project by a certain date," he said ... More Information

Shimla introduces modern tunnel

Shimla, the picturesque capital of Himachal Pradesh, has unveiled a state-of-the-art tunnel, replacing a historic passage that served for 171 ... More Information

Launch of work for India's first undersea tunnel milestone in 2023 for bullet train project

... construction, the statement said. Civil works for stations have started along with works on Surat and Sabarmati high-speed rail depots. The ... More Information

Shimla's Sanjauli-Dhalli Tunnel Is Now Open; 26 More Tunnel Projects for the Himalayan Region

For enhanced connectivity and safer infrastructure, Himachal Pradesh Chief Minister Sukhvinder Singh Sukhu inaugurated the newly constructed ... More Information

Construction firms sign $174M contract to work on Howard Street Tunnel improvement project

Swedish company Skanska and Illinois-based Fay Construction Co. have signed a $174 million contract with CSX Transportation for the Howard Street ... More Information

Sub sea tunnel opening in the Faroe Island

The Sandoyatunnel was opened for the public. The tunnel is the last of the two tunnels in the Eysturoy - Sandoy project. Each of the tunnels are around 11 km in length and the project is a ... More Information

Waterfront Tunnel

Today, the Waterfront Tunnel stretches from AlexRenew to the end of King Street, over 150 feet below the Potomac riverbed. Only a few more blocks to go in her 2-mile-long, waterway-saving ... More Information

Mechanical Earthworm: The Wonders of the TBM in Action

Welcome back to another installment in our series on the Ritom Power Plant refurbishment. Today, we delve into how the Tunnel Boring Machine (TBM) used in the project operates. ... More Information

HRBT Expansion Project

Follow HRBT Expansion Project Director, Ryan Banas for the Fall 2023 Project Tour Video as he takes us on an inside look at progress, plans, and construction updates across the corridor... More Information

Tunnels and Underground Works for Pumped Storage Hydropower Projects: Challenges and Opportunities Panel Discussion

The NSW ATS invites all members, non-members and students to participate in this captivating hybrid (in person and webinar) panel discussion centred on the challenges and opportunities for ... More Information

Lower Thames Crossing, Driving Carbon out of Construction

In December 2023, we brought together our Delivery Partners and a large cross section of the UK construction industry to share our plans to drive carbon out of the construction of the ... More Information

HS2 tunnel segments on the move from Hartlepool to London

Deliveries of HS2’s tunnel segments have begun from Hartlepool, using the UK’s rail network to minimise road traffic and drastically reduce carbon emissions. STRABAG, the company ... More Information