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ES Rubber gaskets used for Koralm tunnel

 ES Rubber gaskets used for Koralm tunnel

As part of the Koralm tunnel (lot KAT 3) two tunnels, which are 5.9 km long and with a 9.5 m external diameter, will be driven by a bi-modal TBM and will be lined with about 45,000 segments ... More Information

Melbourne Metro Rail Project

Melbourne Metro Rail Project

On 19.11.2015 the government announced the EUR6.08-7.43 billion (AUD9-11 billion) Melbourne Metro project in Australia can be procured as an availability based Public Private Partnership (PPP) ... More Information

Shieldhall tunnel

Shieldhall tunnel

Scottish Water reached a key milestone in the construction of the Shieldhall Tunnel in Glasgow. Bachy Soletanche, the UK company contracted last June by the JV VINCI Construction Grands Projets and ... More Information

Underground Construction Prague 2016 - Registration

The on-line registration has now opened the for the 2016 Underground Construction conference that will be held in Prague from 23.05.2016 to 25.05.2016. To register please visit the website ... More Information

Breakthrough of Line 3 of Riyadh's Metro

A ceremony was held for the breakthrough of  Line 3 of Riyadh's Metro, it is the longest part of the network at 40.7 km. The line runs from the west near the Jeddah Expressway and ends in the ... More Information

New record set by SELI on the Doha Metro Gold Line

New record set by SELI on the Doha Metro Gold Line

On 08.11.2015 Seli Overseas broke through at Al Wabb Station on the Doha Metro Gold Line and set a new production record for the line with 625 m excavated in one month. Seli Overseas subcontract ... More Information

STUVA-Expo 2015

STUVA-Expo 2015

STUVA-Expo 2015 - these 164 exhibitors are prepared for your visit! 3D Mapping Solutions GmbH, A.S.T. Bochum GmbH, AB Alvenius Industrier, ACO Tiefbau Vertrieb GmbH, ADCOS NV, Adolf Würth GmbH ... More Information

Metro Line 1 at Turin

A TBM, built in Germany by Herrenknecht, will be assembled and lowered in the metro station ready to dig and build a tunnel under Nizza Street, first towards Moncalieri and then towards Lingotto for ... More Information

Third light rail tunnel segment for Northgate Link extension completed

On 06/11/2015 the TBM Brenda reached the future station of the extension of the U District Northgate Link to Seattle, completing the third segment of the twin 3.5-mile tunnels being mined by JCM ... More Information

Sandvik and Bauma Munich 2016

Sandvik and Bauma Munich 2016

Sandvik Construction will not now be exhibiting at Bauma in April 2016. The reason for this decision is due to their continuing strategy of focusing on the real needs and requirements of their ... More Information

Final phase for new Midtown Tunnel

Final phase for new Midtown Tunnel

The Midtown Tunnel is comprised of 11 different concrete elements which are now complete. The final layer which is called armor stone will protect the tunnel from ship anchors in the Federal ... More Information

Gotthard tunnel referendum on second tube

A referendum will be held on  28.02.2016 for Swiss citizens will make a decision about the federal government proposal to build a second tube for the Gotthard road tunnel under the Alps before ... More Information

Italy - Technical regulations for fire prevention in metropolitan railways

The Ministry of the Interior for the technical regulations for fire prevention in the design, construction and operation of metropolitan railways have published their latest guidelines. Visit ... More Information

Breakthrough in the Sachseln safety tunnel

Breakthrough in the Sachseln safety tunnel

On 19.10.2015 a veteran Robbins Main Beam (diameter 4.20 m, weight 260 t) completed the excavation of the 5,084 m-long  Sachseln safety tunnel on  the A8 motorway, in Switzerland. Works, ... More Information

Moscow Metro on a Roll!

Moscow Metro on a Roll!

This Autumn the company SMU Engeocom from Moscow completed two tunnels for the third interchange (second circle line) of the Moscow metro, using two Robbins EPB TBMs. On 24.10.2015 the TBM Victoria ... More Information

Second tunnel on Auckland’s Waterview Connection motorway completed

Second tunnel on Auckland’s Waterview Connection motorway completed

TBM Alice, one of the largest TBM's ever used in the Southern Hemisphere, completed its work on the Waterview Connection, a link in a motorway network through the city of Auckland, between the ... More Information

Final Breakthrough in Monte Poggio Maria tunnel

Final Breakthrough in Monte Poggio Maria tunnel

On 22.10.2015 Cipa SpA completed the excavation of the  railway tunnel Monte Poggio Maria.  The project is part of construction for the enlarging of the Cefalu'- Ogliastrillo section on ... More Information

FCC to construct the Toyo Tunnel in Colombia

FCC to construct the Toyo Tunnel in Colombia

FCC has been awarded the contract for the project which includes the design, construction, operation and maintenance of the Toyo tunnel in the Urabá Port (around 80 kilometres from ... More Information

Turin Line 2 approved

On 20.10.2015 the Turin City Council approved the tender design to authorize the start of tendering process for contracts to construct the city's second driverless metro line, connecting Rebaudengo ... More Information

Seli Overseas sponsors tunnelbuilder!

Seli Overseas sponsors tunnelbuilder!

Tunnelbuilder would like to welcome Seli Overseas SpA as the latest sponsor of the tunnelbuilder websites. In February last year Seli Constructions SpA partnered with Grandi Lavori Fincosit Spa ... More Information

New milestone for the red line project in Doha

New milestone for the red line project in Doha

With the breakthrough of TBM S-867 on 10.10.2015 and S-865 on 13.10.2015 at the Legtaifiya Station in Doha, Salini Impregilo, leader of the ISG joint venture, has completed 11 out of the 16 ... More Information

Chiaravagna tunnel completed

Chiaravagna tunnel completed

On 22.10.2015 Cipa Spa, along with the contractor COCIV, finished the excavation of the 278 m Chiaravagna tunnel. The tunnel is part of the new high speed, high capacity railway line ... More Information

Florence breaks through at Castle Hill

Florence breaks through at Castle Hill

On 02.10.2015 Sydney metros North West TBM number 2 Florence broke through into the site of the future Castle Hill station after a 6.5 km dig. Work began at Bella Vista in late October last year. ... More Information

Pinchat railway tunnel breakthrough

Pinchat railway tunnel breakthrough

The final wall of the 2.1 km Pinchat tunnel came down on the 10/08/201. The tunnel is 30 meters below the Route de Troinex, creating the connection between Carouge-Bachet and Val d'Arve, on the ... More Information

Fortezza-Ponte Gardena access plans filed

RFI and Italferr have completed the final design for the Fortezza-Ponte Gardena access, which is part of the Brenner Base Tunnel project and filed it at the Ministry of Infrastructure and Transport. ... More Information

Testing has begun at the Gotthard Base Tunnel

The federal office of transport has given the go ahead for testing to begin in the Gotthard Base Tunnel.  The first successful test runs began on 01/10/2015 with the first trains using ... More Information

Iran-Armenia railway construction

The construction of the Iran-Armenia railway will begin after the creation of an important cargo base. The railway will be used mainly for in-transit freights from Iran to other countries. The ... More Information

Breakthrough for SS640 at Caltanissetta tunnel

Breakthrough for SS640 at Caltanissetta tunnel

On  the 15/10/2015 C.M.C Ravenna with TBM Barbara broke through on the first part of the 4 km Caltanissetta tunnel, which is part of the 28 km-long section upgrade at the A19 ... More Information

Latest news from the Shieldhall tunnel

Latest news from the Shieldhall tunnel

The contract was awarded equally between  JV Costain and VINCI Construction Grands Projets and covers the construction of two shafts, 15 m diameter each, with a depth of 20 m, a 300 m long ... More Information

The first tunnel section of line 5 of the Riyadh Metro is complete.

The first tunnel section of line 5 of the Riyadh Metro is complete.

On 06.10.2015 FAST, the FCC-led consortium made up of Samsung, Alstom, Strukton, Freyssinet Saudi Arabia, Typsa, Atkins and Setec, finished drilling the first tunnel section of line 5 (green ... More Information

Cifa at Victoria Station – Press release

Cifa at Victoria Station – Press release

The London Underground, the oldest in the world and the largest in Europe, comprises 11 different lines and 270 stations. Of these the Victoria Line is a deep-level underground route that was ... More Information

Liantang/ Heung Yuen Wai Boundary Control Point at Hong Kong

Liantang/ Heung Yuen Wai Boundary Control Point at Hong Kong

On 31.08.2015 a 14 m diameter dual-mode EPB TBM was launched in Hong Kong at the north portal of the tunnel that will link the north-eastern New Territories and the Liantang border crossing in ... More Information



On 21st August 2015, the Tunnel Boring Machine S36 broke through at Palam Station, 27 days after its twin S37 did the same, completing the last drives on Contract CC-34 of Delhi Metro Phase-III. ... More Information

Dätwyler Newsletter

Dätwyler Newsletter

The latest Dätwyler Newsletter is now available with updates on all their current and future projects. Please click here. 40/15   More Information

Seattle Northgate Link Extension - Tunneling update

Seattle Northgate Link Extension - Tunneling update

Tunneling crews continue to make progress on both tunnels between the Roosevelt Station site and the U District Station site for the Northgate Link Extension in Seattle. TBM Brenda is just south of ... More Information

Setronic ARGO at Expotunnel

Setronic ARGO at Expotunnel

Setronic Verona Srl is an ISO 9001:2008 certified company, specialized in design, manufacture and after sales service for optical beam smoke and fire detectors, opacity analyzer, ... 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