Tunnelbuilder Promoting the world's tunnelling industry to a huge qualified audience

View the Spanish Tunnelbuilder website View the Italian Tunnelbuilder website

Archive - News

Featured News

High Quality TBM Solutions from Canada made in China

High Quality TBM Solutions from Canada made in China

Dubai (UAE)/Toronto (CDN)/Liaoyang (CN), April 2018 – Founded in 1972, Lovat has been a renowned and leading TBM manufacturer for more than 45 years until now. Specialised in mixed/soft ... More Information

DAT – Press Release

DAT – Press Release

DAT INSTRUMENTS INTRODUCES DAT WIDELOG DATA LOGGER WITH NEW LARGE 18.5-INCH MONITOR DAT WideLog Eliminates Need For Multiple Data Loggers with Single Data Logger Capable Of Executing And ... More Information

Robbins Webinar: Is Your TBM in a Tight Spot? How to Get Through Squeezing Ground, Rock Bursting and More!

Robbins Webinar: Is Your TBM in a Tight Spot? How to Get Through Squeezing Ground, Rock Bursting and More!

Complimentary Webinar: Is Your TBM in a Tight Spot? How to Get Through Squeezing Ground, Rock Bursting and More - With Brad Grothen, Sindre Log Date: May 16, 2018 If you’ve ever faced ... More Information

WTC 2018 in Dubai – The Middle East consolidates its position as a powerful emergent market

WTC 2018 in Dubai – The Middle East consolidates its position as a powerful emergent market

Held in Dubai, from 21stto 26thApril by the Society of Engineers (SOE) and the International Tunnelling and Underground Space Association (ITA), the World Tunnel Congress and 44th ITA ... More Information

Arna-Stanghelle project

The main objective of the Arna -Stanghelle project, joint venture by the Norwegian Public Roads Administration and the Norwegian railway company Bane Nor, is to build a safer and faster rail and ... More Information

IHC – Non- Radioactive Density Meter

IHC – Non- Radioactive Density Meter

INTRODUCTION The management of the slurry system in tunnelling projects plays an important part in the safety and efficiency of tunnelling projects. Whether the slurry is used for maintaining ... More Information

One year to go to WTC 2019!

One year to go to WTC 2019!

The World Tunnelling Congress 2019 will be held in Naples, Italy from 3rd to 9th of May 2019. A major event for the engineering and geotechnical sectors linked to tunnelling, promoted by the ... More Information

Cappuccini Tunnel

Cappuccini Tunnel

The Cappuccini gallery, is part of the tunnel works for the construction of the SS 1 Aurelia variant; access roads to the Savona harbour hub;  the interconnection between the Savona and ... More Information

MAPEI’s Middle East operations see a 4.36% increase in turnover in 2017

MAPEI Underground Technology Team (UTT) is fueling the company’s growth across the region thanks to a number of recent, high-profile successful projects, which have helped the company achieve a 4.36 per cent increase in the turnover in the Middle East in 2017 compared to 2016. More Information

World Tunnel Congress 2018

Today 23rd of April 2018 is the official opening of the World Tunnel Congress which is being held in Dubai, UAE, at the World Trade Centre. The theme is ‘The Role of Underground Space in ... More Information

Datwyler latest newsletter

Datwyler latest newsletter

NEW FIBRE ANCHORED GASKETS - As a leader of innovations, Datwyler has now enhanced its  glued and ‘feet’-anchored gaskets. Following requests from their customers, they are now ... More Information

Robbins Blog - 9 Things to Consider When Choosing a TBM: A Checklist

Robbins Blog - 9 Things to Consider When Choosing a TBM: A Checklist

Posted by Doug Harding | Apr 16, 2018 | Insights in Brief Purchasing a Tunnel Boring Machine is no small consideration.  Many factors are equally important to the price, and they can mean ... More Information

Mapei Group acquire Fili & Forme Srl

Mapei Group acquire Fili & Forme Srl

On April 4th 2018, Mapei Group acquired FILI & FORME Srl, a company that has been operating for more than 10 years in the building industry as part of  the Istrice brand. Fili & ... More Information

Route 2020 in Dubai 50% complete

Route 2020 a joint project between Acciona and Gulermak has now completed 50% of the tunnel drilling works of the project.  Acciona and Gulermak are jointly responsible for the civil ... More Information

Transbay Program Phase 2 Downtown Rail Extension (DTX)

Transbay Program Phase 2 Downtown Rail Extension (DTX)

The approximately $6 billion Transbay Transit Center/Caltrain Downtown Extension (TTC/DTX) project in San Francisco consists of following three interconnected elements. A replacement of the the ... More Information

Fixed link from Newfoundland to Labrador

Fixed link from Newfoundland to Labrador

A study on a fixed link from Newfoundland to Labrador, funded by the province and the Atlantic Canada Opportunities Agency, was completed by Memorial University's Leslie Harris Centre of Regional ... More Information

Revisiting the Chamber of Horrors

To qualify for the tunnelbuilder Chamber of Horrors, a project must have set out for the Hall of Fame and lost its way. The list we have is by no means complete, because failures in tunnels are ... More Information

Moretrench Inc Acquisition update

Further to its announcement on 5 January 2018, Keller today announces that it has acquired the entire issued share capital of Moretrench Inc., a geotechnical contracting company operating ... More Information

Video update on the build of London's new super sewer

March has been a productive month for Tideway with work on the Thames Tideway Tunnel making huge strides ahead of the start of tunnelling later this year. Tunnel Boring Machines, Millicent and ... More Information

Still time to register for the WTC 2018 Short Course!

Still time to register for the WTC 2018 Short Course!

WTC 2018: Short course on the Main Opportunities and Technical Issues in Tunnelling The United Nations estimates that by 2050, around 70% of all people will live in cities. Managing urban areas has ... More Information

Revisiting the Comedy of Errors

Strange things sometimes happen at tunnelling sites. Maybe they are not so funny at the time, and nobody wants to talk about them. Then, as the years go by, the tale will unfold, embellished by ... More Information

Revisiting the Theatre of Dreams

At tunnelbuilder we have decided to visit some of our past readers submissions about tunnelling successes and mishaps.  We are also going to look at what tunnellers thought may or may not ... More Information

TBMs ordered for Melbourne Metro

Four giant tunnel boring machines (TBMs) will start arriving early next year to build the $11 billion Metro Tunnel that will transform Melbourne’s transport network.   Minister for ... More Information

Melbourne Metro

Melbourne Metro

Be brought right up to date about the Melbourne Metro tunnelling project by reading their latest newsletter here. 14/18 More Information

Follo Line Project update

Follo Line Project update

Almost 2/3 of the Follo line tunnel has now been completed by, the joint venture between Ghella and Acciona. They have bored 24,000 m through extremely hard rock which has been interspersed with ... More Information

Bangladesh – Karnaphuli tunnel

In August 2015 the Government of Bangladesh awarded to the China Communication Construction Company Ltd the contract to build the Karnaphuli road tunnel  (3.5 km long, 10 m wide) in Chittagong, ... More Information

IRF Global R2T

A reminder about the abstract submission deadline The IRF Global R2T Expo & Conference.   The abstract submission deadline has been postponed to April 6, 2018, click here for more. ... More Information

VIP ready to talk TSG innovation at the WTC

VIP ready to talk TSG innovation at the WTC

VIP-Polymers Ltd is taking its latest innovation in tunnel segment gaskets - a major step forward in cast-in gasket design - to the ITA-AITES World Tunnel Congress in Dubai. The patented ... More Information

Robbins Complimentary Webinar

Robbins Complimentary Webinar

Is Your TBM in a Tight Spot? How to Get Through Squeezing Ground, Rock Bursting and More With Brad Grothen, Sindre Log Date: May 16, 2018 If you’ve ever faced mountainous tunneling ... More Information

TERRATEC marks record-breaking TBM advance in Istanbul

TERRATEC marks record-breaking TBM advance in Istanbul

In early March, Senbay Madencilik - Kolin - Kalyon JV achieved a record - breaking TBM production shift during excavation of the Dudullu - Bostancı Metro Line, in Istanbul .    At 7am, ... More Information

Robbins TBM uncovers Spectacular Cavern at Galerie des Janots

Robbins TBM uncovers Spectacular Cavern at Galerie des Janots

Workhorse Machine makes progress in Difficult Ground  A rebuilt Robbins 3.5 m (11.5 ft) diameter Main Beam TBM has yet another milestone to add to its storied career: an unexpected ... More Information

Milestone for the Semmering base tunnel (SBT) lot 2.1

Milestone for the Semmering base tunnel (SBT) lot 2.1

On 15 and 16.02.2018 Swietelsky Tunnelbau GmbH & Co KG, a subsidiary company of the Swietelsky group, reached an important milestone in the construction of the Froeschnitzgraben tunnel (SBT ... More Information

CBE Group reaches 200 automated plants worldwide

CBE Group reaches 200 automated plants worldwide

NORTH EAST BOUNDARY TUNNEL in the USA or the DUBAI DEEP STORM WATER project in the United Arab Emirates are two of the new projects signed by CBE Group at the beginning of the year. As active as ... More Information

Sydney Metro City & Southwest update

The first of five mega TBMS designed, built and to be delivered by Herrenknecht, will be in the ground before the end of this year to drive the twin 15.5km metro rail tunnels between Chatswood and ... More Information

Pickles: The Wirth Roadheader T3.20

Pickles is Australia’s leading asset remarketing organisation with thousands of assets available across vehicles, industrial, salvage and general goods. We’re currently taking EOIs for a Wirth roadheader T3.20. More Information

Twin Peaks Tunnel update

The Twin Peaks Tunnel  (3.54 km-2.2 miles) first opened for service on 03.02.1918, and still is a vital connection between downtown San Francisco (California, USA) and its southern and western ... More Information

Tunnelling News

Scarborough Subway Extension tunnelling progresses following maintenance stop

The remaining portion of the tunnel will be delivered by Scarborough Transit Connect, the development partner for the project's stations, rail and ... More Information

World's Deepest Underwater Tunnel to Have Cars Drive 16 Miles Under the Sea

Norway is building what is to become the longest and deepest road tunnel under the sea. The Rogfast project, measuring 26.7 kilometers (about 16.5 ... More Information

Tunnelling underway for National Grid’s 3.4km power tunnel in Snowdonia

The tunnel boring machine (TBM) Buddug has commenced excavation of National Grid’s 3.4km power tunnel in Wales’ Eryri National Park, otherwise known as Snowdonia. The tunnel is part of ... More Information

CPK signs contract for construction of HSR tunnel in Łódź

The contract for the construction of a 4.6 km long, 14-metre wide High-Speed Rail (HSR) tunnel will be carried out by construction company PORR. The project is valued at approximately PLN ... More Information

Underneath the busy Baltimore streets, the Howard Street Tunnel gets its makeover

A squad of construction workers descend daily under the streets of Baltimore. They labour deep down, in the semi-secret and highly restricted ... More Information

London Power Tunnels Milestone

We're thrilled to announce that our second 2.5km high-voltage circuit between Hurst and Crayford is now live. This £1 billion project is rewiring London, strengthening energy supply, and ... More Information

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