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

Cairo metro breakthroughs

Despite a year of political upheaval in Egypt, on 10.01.2012 the 9.46 m-diameter NFM TBM on Line 3, Phase 2 of Cairo metro project broke through into Stadium station after a 1,579 m drive during which best production figures were 24 m/day and 109.5 m/week. 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

Gjerstad side tipping buckets save time

Gjerstad side tipping buckets save timeNorwegian manufacturer Gjerstad Intera produces a wide selection of buckets for loaders and excavators, together with several models of quick couplers. In ... More Information

Herrenknecht TBM progress at metro Line B in Lyon

Herrenknecht TBM progress at metro Line B in LyonOn 27.09.2010 Herrenknecht TBM Agata, diameter 5 m, weight 1,000 t, length 70 m, started excavation of metro B extension in Lyon. The Gerland Stadium ... 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

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

Line B extension of the Lyon metro

Line B extension of the Lyon metroIn July 2009 the JV headed by Chantiers Modernes Rhone-Alpes, a subsidiary of Vinci Group, with the nine companies SPIE Batignolles, TPCI, Dodin Campenon Bernard ... More Information

NFM Technologies EPB for Cairo Metro

NFM Technologies EPB for Cairo MetroThe second phase of the Cairo Metro Line 3, launched in parallel with the construction of the first phase, includes separate packages covering civil, ... More Information

New section of Sofia metro Line 1 opens

New section of Sofia metro Line 1 opensThe 2 km section Serdika - Vasil Levski National Stadium of Sofia metro Line 1 opened on 08.09.2009, connecting the region's eastern and western boroughs and ... More Information

Sofia metro gets underway

Sofia metro gets underwayWork began in July, 2009 on the new stretch of Sofia metro line 1 to connect the Obelisk - Serdika and Vasil Levski Stadium - Mladost 1 sections, which themselves will be ... More Information

Ministry of Infrastructure and City of Milan Sign Agreement for Metro Lines in Milan

Ministry of Infrastructure and City of Milan Sign Agreement for Metro Lines in MilanDuring a meeting on 31st July, 2007 between minister for infrastructure Antonio Di Pietro, mayor of Milan ... More Information

South Tunnel on M-30 South Bypass Opens in Madrid

South Tunnel on M-30 South Bypass Opens in MadridAlberto Ruiz Gallardon, the Mayor of Madrid, inaugurated on 8th May, 2007 the south tunnel of the south bypass on the inner ring road, a 4.2 ... More Information

Two CSM Bessac TBMs at Work in Algiers

Two CSM Bessac TBMs at Work in AlgiersIn November 2001, the poor districts of Bab El Oued, Frais Vallon and Beau Fraisier on the western side of Algiers were struck by devastating floods and ... More Information

Lovat’s Double Olympic Achievement in London and Vancouver

Lovat’s Double Olympic Achievement in London and VancouverTunnelling work on major infrastructure developments for the 2012 Summer Olympic Games in London and the 2010 Winter Olympics in ... More Information

North Tunnel on M-30 South Bypass Opens in Madrid

North Tunnel on M-30 South Bypass Opens in MadridSince 23rd March, 2007 up to 80,000 vehicles use daily the north tunnel on the south bypass on the M-30 in Madrid, which opened to traffic at ... More Information

World’s Deepest Road Tunnel Breaks Through in Norway

World’s Deepest Road Tunnel Breaks Through in Norway951 days after the first blast, the 7,765 m-long Eiksund subsea tunnel - the world’s deepest road tunnel in Møre and Romsdal county - ... More Information

Construction in Full Swing at Malmö City Tunnel

Construction in Full Swing at Malmö City TunnelThe Öresund connection between Sweden and Denmark, a combination comprising both bridge and tunnel structures, was officially opened in July ... More Information

Steady Progress at Hallandsås

Steady Progress at HallandsåsAt the southern tunnel portal in Förslöv, commissioning of the 250 m-long TBM and its ancillary installations has been in progress since autumn 2005. ... More Information

Madrid Completes All New Tunnels for its Metro Expansion

Madrid Completes All New Tunnels for its Metro ExpansionAll tunnelling required as part of the 2003-2007 expansion plan of the Madrid metro ended on 27th September, 2006 on Line 7 to east of ... More Information

Iceland TBMs Make a Strong Finish and Tie a World Record

Iceland TBMs Make a Strong Finish and Tie a World RecordThe Kárahnjúkar hydroelectric project includes approx. 72 km of tunnels that will transfer water to a powerhouse in the Fljótsdalur ... More Information

Chilean President Michelle Bachelet Kicks off San Cristobal Tunnel at Groundbreaking Ceremony

Chilean President Michelle Bachelet Kicks off San Cristobal Tunnel at Groundbreaking CeremonyChilean president Michelle Bachelet, minister of public works Eduardo Bitran, and Karl Traub, ... More Information

Stägjitschugge Tunnel to Improve Access to Narrow Zermatt Valley

Stägjitschugge Tunnel to Improve Access to Narrow Zermatt ValleyThe Stägjitschugge tunnel is located on road H213 between the cities of Visp and Zermatt in the Wallis canton, Switzerland. This ... More Information

Bolivia Inaugurates Misicuni Tunnel

Bolivia Inaugurates Misicuni TunnelThe 19.5 km trans-Andean tunnel to transport water from the Misicuni river in the Andes mountain range in Bolivia, the world's most infamous and slowest tunnel, ... More Information

All-weather Work at Karahnjukar with Heavy-duty Machinery

All-weather Work at Karahnjukar with Heavy-duty Machinery The Vatnajökull glacier in the northeast of Iceland is an area which can only be accessed under great difficulty. In the winter months from ... More Information

Gjerstad for toughness, durability, and a long working life

Gjerstad for toughness, durability, and a long working lifeMost people in the tunnelling industry associate the name Gjerstad with side-tipping buckets, an item that they have produced for nearly 40 ... More Information

Technical Seminar on TBMs

Technical Seminar on TBMsIIR Spain organises a technical seminar on the necessary steps in the selection of a TBM to get a maximum return on investment, estimate with a 100% accuracy the project ... More Information

Page:

Tunnelling News

São Paulo positions TBM for next phase of Line 2-Green

A major milestone was reached on Monday (1 September) with the lowering of the cutter head of the tunnel boring machine (TBM) Cora Coralina... More Information

The 700-ton machine that'll dig NYC's Second Avenue subway extension

NYC has a new tunnel boring machine in its toolbox for the expansion of the line under 2nd ave. If you've never seen some BIG earth moving machines, ... More Information

Light at the end of the tunnel showing for Mount Washington transit project

The project is expected to be completed in October. New tracks finally emerge from the Mount Washington Transit Tunnel as a part of Pittsburgh ... More Information

Davao City Bypass South Tunnel hits breakthrough towards improved connectivity

The Construction Project with the ceremonial breakthrough of the southbound tunnel, marking the complete excavation from opposite ends of the ... More Information

Which companies are bidding for the US$2.3bn highway and tunnel contracts in Brazil?

The project in Brazil, as it will be the country's first underwater tunnel,” the person added. The project involves construction of a 1.5km tunnel ... More Information

US Northeast Rail Corridor Gets a Major Makeover with Tunnel and Bridge Replacements

This project is designed to replace tunnels severely damaged by Superstorm Sandy, ensuring smoother and more reliable service for Amtrak, NJ Transit, ... More Information

DPWH, JICA celebrate breakthrough of Southbound Tunnel in Davao Bypass

The event marked the successful connection of the tunnel's north and south ends. The ... More Information

Jacobs joins Ramboll on Marselis road tunnel project in Denmark

Danish Road Directorate senior project manager Michael Schmidt Vosgerau said: “It is a complex task to build a tunnel on one of the busiest access ... More Information

Planning continues for Midway Tunnel, Safe Streets for All projects

The Midway Tunnel project is a $13.4 million plan ... construction of a new overpass bridge and pedestrian and bicycle walkway above the tunnel. More Information

Four million tons of clay moved in HS2 excavation

Construction on HS2's second-longest tunnel started in October 2022. The rotating cutters cut away clay and other material at a rate of about 50ft ... More Information

Jacobs Has Design-CM Role on $640M Denmark Tunnel, With Ramboll as Key Consultant

Set to begin construction in 2028, Marselis Tunnel project is core component of the country's 10-year Infrastructure Plan 2035. By Emell D. Adolphus. More Information

Elon Musk's $760,000,000 plan to build underground tunnels beneath Houston, Texas

Elon Musk's next big construction plan from The Boring Company could build $760000 worth of tunnels beneath Houston to help with flooding... More Information

Kerala Moves Closer To Vizhinjam–Balaramapuram Tunnel Rail Project

The Kerala government is preparing to invite bids next month for the tunnel rail project linking Vizhinjam International Seaport with ... More Information

Norway's Ship Tunnel Project Under Threat as Costs Rise

New cost estimates suggest the ambitious project will far exceed its approved budget, raising questions about whether it will ever be built. More Information

Davao City Bypass southbound tunnel nears breakthrough

The Department of Public Works and Highways (DPWH) announced that the southbound tunnel of the Davao City Bypass Construction Project (DCBCP) is ... More Information

CA should pursue better alternatives to the costly Delta Tunnel Project Stocktonia

Governor Gavin Newsom is attempting to fast-track the construction of a massive, budget-busting water tunnel through the Delta to ship freshwater to ... More Information

Physical Origins of Shear Strength Fluctuations in Fault Gouges

Fault gouge is rock texture within fault zones that may include rock fragments (RF) and foliated structures. Previous studies have primarily focused on remould soils, the natural structure ... More Information

Webuild expands its role in high-speed rail projects

Four modern tunnel boring machines will be deployed to ensure precision and safety in complex geological conditions. Once completed, the old single- ... More Information

Hudson Tunnel Project advances as tunnel boring machines near completion

The Hudson Tunnel Project hit a key milestone as massive tunnel boring machines near completion, with delivery set for November. More Information

Nagdhunga tunnel in final stages of construction

If we look at the history of road construction and development in Nepal, there are various records of road construction starting from the Rana period. According to articles published in ... More Information

Boring of tunnel across Yellow River completed in China's Shandong

Constructed by using a "Shanhe" shield machine with a 17.5-meter excavation diameter, this double-deck, two-way, six-lane tunnel stands as the world's ... More Information

The £1.6bn plan for world's deepest underwater road tunnel leaving 'no room for error'

Opening of Rogfast tunnel under construction. The Rogfast tunnel will be the longest and deepest undersea road tunnel on Earth. (Image: SKANSA). A ... More Information

Tunnelling complete on NSW's Coffs Harbour bypass project

Tunnelling has been completed on the A$2.2bn (£1.1bn) Coffs Harbour bypass project in New South Wales, Australia, with the excavation of the third ... More Information

Veidekke acquires tunnel construction contract for Gothenburg's West Link Project

Veidekke has received a contract from the Swedish Transport Administration to build the Stora Hamnkanalen tunnel, a component of the West Link ... More Information

German Rail completes construction of Rastatt Tunnel

GERMAN Rail (DB) has completed civil works on the new 4270m twin-bore Rastatt Tunnel, a major component of the project to widen to four tracks the ... More Information

Final contracts signed for Eastern Freeway transformation

A huge amount of work is underway to build North East Link and upgrade the freeways – two tunnel boring machines are digging deep under Rosanna ... More Information

Progress on Sydney pipeline duplication

Bouygues Construction Australia and Rob Carr have launched a tunnel boring machine (TBM) on Sydney Water's Thornleigh pipeline duplication ... More Information

The latest plan to connect BART to downtown San Jose: One tunnel rather than two

When BART and Santa Clara Valley Transportation Authority first discussed plans to send trains rolling under downtown San Jose, transit officials contemplated a design with two tunnels ... More Information

Nashville Tesla tunnel: Here's when construction could start on the Music City Loop

Elon Musk's The Boring Company is currently in the design phase of constructing a tunnel connecting downtown Nashville to the Nashville ... More Information

World's longest underwater 'mega tunnel' to cost $46 billion but will halve 21-hour drive

Oddvar Kaarmo, the Rogfast project manager, cited additional motivation for the tunnel's construction: "The port at Mortavika is quite exposed and ... More Information

China's first vertical large model for tunnel, underground space sector released

The project which is in the Guangdong-Hong Kong-Macao Greater Bay Area. The model helps make tunnel construction safer, higher-quality, more efficient and ... More Information

BMC Begins Major Water Supply Upgrade Mumbai

The project commenced in 2023 and has adopted tunnel boring machine (TBM) technology to minimise surface disruptions in crowded neighbourhoods. Of ... More Information

Slurry tunnel boring machines to be deployed for Bengaluru Twin Tunnel Road Project

B-SMILE opts for slurry TBMs over hard rock TBMs for Twin Tunnel Road project in Bengaluru due to mixed terrain... More Information

Tunnel along railway linking Shenzhen and Shanwei special cooperation zone under construction

Technicians check a tunnel boring machine (TBM) at the construction site of a tunnel in Pingshan, Shenzhen City, south China's Guangdong Province, Aug ... More Information

Construction staging area approved for Nashville's airport tunnel project

The Music City Loop will be a 10 mile tunnel connecting downtown Nashville to the Nashville International Airport (BNA)... More Information

Zojila tunnel deadline pushed to 2028: Here's why Asia's longest tunnel project is delayed

Zojila Tunnel Latest Update: On completion, the project will not only play an important role in the country's infrastructure development but also ... More Information

W.A. Rasic Construction Awarded Major Subcontract on Dragados' $630M Effluent Outfall

The tunnel project is a critical component of Southern California's long-term infrastructure resilience strategy. The project directly supports the ... More Information

VDOT gives HRBT expansion update

Construction on the Hampton Roads Bridge-Tunnel Expansion Project hit key milestones as tunneling progresses and traffic shifts to new lanes. More Information

HS2 lifts third TBM following 3.4-mile journey

HS2 Ltd has lifted Tunnel Boring Machine Emily's 9.11-metre diameter cutterhead, front and middle shield, weighing 880 tonnes, from below the ... More Information