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Robbins EPB claims record at Chengdu

Robbins EPB claims record at ChengduA 6.26 m-diameter Robbins EPB has achieved daily rates of 24 m in the alluvium of Chengdu metro in China, setting a record amongst the 12 machines working on the ... More Information

Google newsfeed comes to tunnelbuilder

Google newsfeed comes to tunnelbuilderTo complement our daily updates dealing with contract news, bids and awards, we have introduced a Google newsfeed which culls the best of the daily newspaper ... More Information

Work starts on Perca by-pass in Tirol

Work starts on Perca by-pass in TirolGeological investigation for the new Perca bypass on SS 49 Val Pusteria started on 19.05.2010. The project, awarded to JV Ing Mario Valdemarin (Bressanone), ... More Information

News from Turin-Lyon AV railways

News from Turin-Lyon AV railwaysThe preliminary design for the new Lyon-Turin rail link, including environmental impact study and cost analysis, is scheduled for the end of June, 2010. Click here. ... More Information

Work starts on Merano bypass in Tyrol

Work starts on Merano bypass in TyrolWork started on 14.05.2010 on Lot 1 of Merano northwest bypass between Lagundo and FS station interchanges. The JV PAC Spa (Bz), Consorzio stabile costruttori ... More Information

Inauguration of SS125 Orientale Sarda

Inauguration of SS125 Orientale SardaOn 25.05.2010 Lot 1, section Terra Mala-CapoBoi of the new SS125 Orientale Sarda, km 5,985 to km 14,765 will be opened. The 8,780 m-long section includes four ... More Information

Kishanganga TBM handed over

Kishanganga TBM handed overOn 13.05.2010 Italian manufacturer SELI handed over a specially designed 400 t DSU TBM to main contractor Hindustan Construction Company (HCC) to bore the Kishanganga ... More Information

Tunnelling on Andora-San Lorenzo section of Genoa-Ventimiglia line

Tunnelling on Andora-San Lorenzo section of Genoa-Ventimiglia lineOn 07.05.2010 in tunnelling was completed at the 3,054 m-long Bardellini tunnel at Caramagna on the Ventimiglia side of the new ... More Information

Taiwan to upgrade coastal highway

Taiwan to upgrade coastal highwayTaiwan's Council for Economic Planning and Development has approved a EUR985 million plan to upgrade the Suhua Highway, linking Yilan County and Hualien City, also ... More Information

MineArc meeting in China

MineArc meeting in ChinaAustralian manufacturer of refuges for tunnels and mines is meeting a Chinese delegation to discuss and agree trials with 11 selected underground locations. Read the full ... More Information

Lilienberg road tunnel opens in Austria

Lilienberg road tunnel opens in AustriaThe 1,134 m-long x 92 sq m section Lilienberg tunnel in Carinthia opened to traffic on 22.04.2010. The EUR22 million tunnel, excavated using NATM techniques, ... More Information

Breakthrough at Strafelter

Breakthrough at StrafelterThe first tube of Strafelter tunnel on the Route du Nord A7 motorway between Luxembourg City and Mersch was completed on 22.04.2010. The tunnel is 1,850 m-long with 200 m ... More Information

Robbins EPB TBM launches at Xi'an

Robbins EPB TBM launches at Xi'anThe Xi'an Metro system will service the urban and suburban districts of Xi'an, the 3,100 years old capital of Shaanxi province, and part of Xianyang City. Six subway ... More Information

Lake Mead TBM arrives at site

Lake Mead TBM arrives at siteThe Southern Nevada Water Authority has unveiled the 6.36 m-diameter Herrenknecht TBM that will mine a third 4.83 km-long raw-water intake at Lake Mead, the reservoir ... More Information

Fogtec fire suppression system for Channel Tunnel

Fogtec fire suppression system for Channel TunnelFogtec Brandschutz GmbH of Cologne will supply the know-how, engineering and equipment to the fire suppression project underway for Eurotunnel in the ... More Information

New Haggloader for small tunnels

New Haggloader for small tunnelsGIA will supply three of its compact Haggloader 7HR-B digging arm loaders to contractor Leighton-LNS JV for use on the HATS sewage conveyance system in Hong Kong. The ... More Information

NAT for Portland, Oregon

NAT for Portland, OregonNorth American Tunneling (NAT), the top underground construction show of the year for the Americas, takes place in Portland's Marriott Downtown Waterfront Hotel from June ... More Information

Normet presents advanced Spraymec

Normet presents advanced SpraymecNormet has introduced Spraymec 8100 VC, the most advanced model for concrete spraying in its Spraymec series. From one set-up the machine will spray concrete in a ... More Information

Working with Bekaert

Working with BekaertFor more than 40 years, Dramix® steel fibre from Bekaert has been reinforcing tunnel constructions all over the world. Continuous performance monitoring over that time has ... More Information

EPC Consulting at Expo 2010 in Shanghai

EPC Consulting Ltd, who handle worldwide sales of Globalchimica Srl products for mining and tunnelling on an exclusive basis, are participating at Expo 2010 in Shanghai. Metro China 2010 and Tunnel ... More Information

Opportunity for Ile de France

French tunnelling society AFTES is running a colloquium in partnership with the regional council for social and economic development in Ile de France on 09.06.2010. Click for details. 17/10. More Information

Silberberg rail tunnel underway on Erfurt-Ebensfeld line

Silberberg rail tunnel underway on Erfurt-Ebensfeld lineConstruction of the 7.4 km-long, EUR220 million Silberberg rail tunnel at Moehrenbach, near Ilmenau in Thuringia, started on 08.04.2010. This, ... More Information

Blasting starts at south portal of Ceneri base tunnel

Blasting starts at south portal of Ceneri base tunnelExcavation of the first 300 m cut-and-cover at the south portal of the Ceneri base tunnel started at Vezia on 12.04.2010 using drill/blast, and ... More Information

Final breakthrough in Terrassa rail tunnel

Final breakthrough in Terrassa rail tunnelOn 13.04.2010 the JV FCC, OHL & Copisa broke out the second 3.7 km-long tube of the 6.9 m-diameter Terrassa tunnel. The TBM-driven tunnel has eight ... More Information

Preliminary works start on crucial trans-Madrid rail tunnel

On 13.04.2010 excavation work began on an auxiliary exit in calle Espalter for the 6.9 km-long tunnel across Madrid between the Atocha and Chamartin stations to connect the lines of the national ... More Information

Somport tunnel refurbishment work approved

The Spanish Government has approved the EUR16,507,565 required for exploratory work for refurbishment in the Somport tunnel and its approaches. The 8.6 km-long tunnel straddles the Spain-France ... More Information

Bauma 2010 kicks off on time

Despite the virtual total shutdown of flights into and within Europe over the weekend, Bauma 2010 has started its trade fair programme as scheduled. Click for update. 16/10. More Information

Live Bids from tunnelbuilder

Whenever a bid appears at tunnelbuilder.com it is logged at Live Bids, together with its closing date. This presents an instant check for readers, who may click for more information on bids of ... More Information

New section of Hungarian motorway opens

Hungary's M6 north-south motorway between Szekszard and Boly opened to traffic on 01.04.2010 at the same time as the M60 motorway from Boly to Pecs. The 80 km section includes four bi-tube tunnels, ... More Information

Monte Tratturale excavation underway

On 01.03.2010 drill/blast excavation commenced at the 3.17 km-long Monte Tratturale tunnel on the San Severo-Apricena-Sannicandro Garganico railway section in Foggia province managed by Ferrovie del ... More Information

Meet IPS at Bauma

IPS Group - IPS Worldwide Tunnelling will be present at the Bauma 2010 Exhibition and invite you to visit us at Hall C3, booth 515. Bauma takes place in Munich, Germany from 19th - 25th of April, ... More Information

Clem Jones tunnel opens in Brisbane

The 4.8 km-long, twin two-lane Clem Jones tunnel, known as the North-South Bypass Tunnel (NSBT) while under construction, opened to traffic on 16.03.2010. The tunnel is the main feature of the 6.8 ... More Information

NAT conference for Portland, Oregon

With all exhibition space sold out, and a waiting list for late allocations, the North American Tunneling 2010 show in Portland, Oregon from 20th to 23rd June is a guaranteed commercial success. ... More Information

Normet acquires interest in TAM

Today, Normet Group announced the acquisition of 40% of TAM International and will begin to sell TAM construction chemicals to complement Normet concrete spraying equipment. Normet aims to become ... More Information

Herrenknecht EPB starts Sants-La Sagrera tunnel

The 11.5 m-diameter Herrenknecht TBM Barcino was launched from a shaft situated between Mallorca and Biscaia Calles on 26.03.2010. The 105 m-long, 2,300 t machine will drive 5.1 km of the 5.6 km ... More Information

Tsuen Wan drainage tunnel TBM ready

The double shield TBM manufactured and operated by SELI for the Maeda/CRGL/SELI jv has been assembled and will be soon pushed into the launching chamber in order to produce more room and to allow ... More Information

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Tunnelling News

The world's longest expressway tunnel: China's Tianshan Shengli Tunnel

At the same time, the project also implemented China's first 'three-tunnel parallel construction' plan, which increased the number of workfaces. At ... More Information

'Not really where you want to be': Ground preparation for Lower Thames Crossing tunnelling

The Lower Thames Crossing is a major new road and tunnel project in the UK, intended to alleviate congestion at the Dartford Crossing and enhance. More Information

Funding problems affect metro line extensions

In the Athens metropolitan area, construction of Line 4 is continuing, with the Avax-Ghella-Alstom consortium saying the two tunnel-boring machines ... More Information

Transport Minister inspects progress on Cairo Metro Line 4 phase one

Four tunnel boring machines (TBMs) are in operation—two in each direction. According to the project timeline, the first TBM has reached the Grand ... More Information

Here's what happened with Toronto's Scarborough Subway Extension in 2025

SSE tunnelling, which began in January 2023, is being carried out with the largest tunnel boring machine (TBM) ever used on a Canadian transit project ... More Information

NHAI connects Tunnel No. 4 on Shimla bypass

NHAI PIU Shimla Project Director Anand Kumar, Bharat Construction ... The tunnel was constructed using the New Austrian Tunnelling Method (NATM) ... More Information

Mumbai-Ahmedabad Bullet Train Update: Palghar Tunnel Breakthrough Achieved

NHSRCL Bullet Train Project | India First Bullet Train Update: Last year, the Ministry of Railways achieved a breakthrough in the construction of ... More Information

Main tunnel works connecting future Changi Airport T5 to existing T2 completed

Main tunnel works connecting the future Terminal 5 to the existing Terminal 2 are completed, as the Changi East development gathers pace... More Information

Testing completed on Hudson River Tunnel boring machines

The project calls for construction of 9 miles of passenger-rail track between New York ... More Information

World's longest motorway tunnel finally opens in £3BILLION project

The Tianshan Shengli (Victory) Tunnel, located in the Tianshan Mountains of Xinjiang, China, measures some 22 kilometres – roughly 13.75 miles – and ... More Information

Cross-river tunnel of Nanjing Metro Line 4 Phase II completes tunneling

This photo taken on Dec. 27, 2025 shows the rear of the "Xinzhengcheng" tunnel boring machine at the construction site of Nanjing Metro Line 4 ... More Information

Tunnels Design and Construction Market is Going to Boom

HTF Market Intelligence projects that the global Tunnels Design and Construction market will expand at a compound annual growth rate (CAGR) of 6.80% from 2025 to 2032, from 72 Billion in ... More Information

Longest tunnel in the world costing £7billion will connect 3 European cities

The Brenner Base Tunnel is currently under construction and will connect the countries of Austria and Italy. The impressive tunnel, which is set ... More Information

Georgian Officials Mark Completion of Railway Modernization, Hoping to Boost Transit

The works also included the construction of the 8,300-meter dual-tube tunnel near Kvishkheti, 10 bridges, six tunnels, and around 100 engineering ... More Information

Israeli municipality approves budget for new tunnel project south of Jerusalem

The Jerusalem Governorate said that the project aims to connect the Har Homa settlement, built on Jabal Abu Ghneim land, to the Begin bypass road near ... More Information

Megaprojects Under Construction Around World In 2026

Described as the largest road tunnel in the U.K., the Lower Thames Crossing will link Tilbury in Essex via a tunnel underneath the Thames with ... More Information

Delhi Metro expansion: Cabinet approved Rs 12,015 crore project

The project, planned over a construction timeline of three years, will be executed largely underground using tunnel boring machines to minimise ... More Information

World's Longest Expressway Tunnel to Open, Linking North and South Xinjiang

Engineers used innovative methods and specially designed machines called tunnel boring machines (TBMs) to dig through hard rock faster and safer than ... More Information

The huge £21bn mega-tunnel that goes right through the middle of a mountain

Huge boring machines will create a 57.5km (35.7mile) tunnel through the Alps to connect French and Italian high-speed rail networks and link Lyon ... More Information

Rome digs deep for railway that burrows beneath the Colosseum

Tunnellers used lasers to check whether ancient columns at the nearby Forum were not wobbling as their 300ft long tunnel boring machine churned ... More Information

World’s largest-diameter high-speed railway shield tunneling machine reaches milestone

The world's largest-diameter high-speed railway shield tunneling machine independently developed by China, “Linghang,” for the Chongming-Taizhou ... More Information

Third circuit on £1bn London Power Tunnels 2 project energised

Electricity has begun flowing through a new section of National Grid's London Power Tunnels 2 (LPT2) project after the energisation of a ... More Information

Westmead metro station cavern formwork the biggest in the southern hemisphere

Crews are now retrieving the 1,200-tonne Tunnel Boring Machines (TBMs) that arrived beneath Westmead in September and October, lifting each machine ... More Information

Webuild: excavation begins on three tunnels for Salerno-Reggio Calabria HS/HC Railway

All four TBMs planned for Lot 1A Battipaglia–Romagnano section are operational with launch of latest three Joining TBM Partenope, already active, are Leucosia and Ligea, whose names were ... More Information

SELI Overseas: 75 Years of Tunneling with TBMs

From Channel Tunnel to the Brenner Tunnel: When Tunneling Is Synonymous with Innovation ... SELI TBM at work on the construction site... More Information

Road realignment is major step for HS2, says firm

HS2 Ltd A view of the realigned B4525 on an overcast day. · HS2 Ltd An aerial view of the construction of Greatworth tunnel showing major earthworks ... More Information

Amtrak has made real progress in East River Tunnel rehabilitation

The tunnel has been stripped down to the concrete liner. Westbrook was told the project isn't just about modernizing and replacing what was, but also ... More Information

Madrid invests EUR 123 million in new metro stations on Line 11

TBM Mayrit enters into action in 2026 · November 2025 – February 2026: assembly of the tunnel boring machine in Comillas Park (Carabanchel district) ... Facebook Twitter Flag as ... More Information

Jerusalem Light Rail Construction Advances Ahead of Major Tunnel Work

Local reporting on city project materials notes that “the plan calls for a 2-km underground tunnel to be built beneath the city center, including ... More Information

Why and how the Civil Works Alliance changed Sizewell C tunnel designs from Hinkley Point C

Ground conditions around Sizewell C have required intense collaboration between the project’s contractors alliance to come up with new outfall and intake tunnel design solutions... More Information

AI planning of the first railway tunnel through challenging terrain

AI plans first rail tunnel through tough terrain. Artificial Intelligence China Uses AI for the Construction of Railway Tunnels. 2025-12-08 ... More Information

Will Tunneling Projects Be The Next Big Thing For Mumbai's Public Transport?

During the interview, she also called tunnel boring machines the safest and one of the most efficient ways of doing tunelling. "Only the place of the ... More Information

Chipolbrok vessels deliver tunnel boring machines to Sydney and mineral bulk to Peru

Chipolbrok delivers TBMs for Sydney Metro on Chipolbrok Star and loads 29000t minerals in Peru on Taixing, showcasing fleet versatility... More Information

How Seequent's software solutions help to manage tunnelling data

The second phase of Singapore's Cross Island Line (CRL) metro project is under way, assisted by a suite of software from Seequent. Singapore's CRL is ... More Information

Muography to Transform Tunnel Safety Monitoring

Underwater bridge tunnels have become vital arteries for cities, enabling smooth vehicular passage beneath rivers, bays, and inland waterways. More than 200 of these structures operate ... More Information

10 longest tunnels in the world that reshaped global transportation

Modern tunnel construction involves sophisticated techniques, including tunnel boring machines and advanced geological surveying. The project ... More Information

Čučković: Construction of the tunnel boring machine for the Belgrade Metro in final phase

It is a good thing that we, for example, acquired these tunnel boring machines at a lower price than other countries... More Information

Serbia plans to borrow 2.5 billion EUR in 2026 for the construction of the Belgrade metro

It is also stated that two TBMs (tunnel boring machines), the so-called moles, have already been ordered and are expected to be delivered to ... More Information

VSM starts operation at Tilbury

The pioneering Vertical Shaft Sinking Machine (VSM) from Herrenknecht, named “Verena”, after Verena Holmes, a pioneering British mechanical ... More Information