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Palude excavation holes with difficulty

Palude excavation holes with difficultyOn 18.05.2011 CMC (Ravenna) broke through the south bore of the 1,166 m Palude tunnel, Maxi lot 1 of the Quadrilatero-Marche-Umbria. Several difficulties were ... More Information

TBM progress on Barcelona drives

TBM progress on Barcelona drives On the Madrid-Barcelona-French border high-speed railway line, Herrenknecht TBM Gerunda reached the Parc de la Devesa shaft on 17.05.2011, after boring 885 m of the ... More Information

World's highest road tunnel

World's highest road tunnelOn 25.05.2011 work began on the 7 km-long Trola tunnel in south-western Sichuan province on the 2,415 km-long Sichuan-Tibet highway in China. At a maximum altitude of ... More Information

Big Robbins breaks out at Niagara

Big Robbins breaks out at Niagara The 14.4 m-diameter Robbins Main Beam TBM, the largest of its type ever produced and affectionately known as Big Becky, has broken through at Niagara. The 10.143 ... More Information

Senior engineers required for Toronto Transit expansion

Senior engineers required for Toronto Transit expansionThe Toronto Transit Commission (TTC) keeps Toronto moving with a dedication to service, safety and convenience that is unparalleled in the ... More Information

Planning engineer required

Planning engineer requiredInternational tunnelling recruitment agency iPS is seeking a planning engineer to work for a UK client. Duties include planning of overall project, logistics, construction ... More Information

Highest railway tunnel

Highest railway tunnelFenghuoshan tunnel, located in Zadoi county, Qinghai on the new 1,142 km-long Qingzang railway to Tibet at an altitude of 4,905 m ASL, is the highest railway tunnel in the ... More Information

South Island Line contracts let

South Island Line contracts letLeighton Asia has been awarded two contracts by MTR Corporation for construction of the new 7 km-long South Island Line (East) in Hong Kong. The work includes 1.1 km ... More Information

Ann Lambrechts of Bekaert wins Inventor Award

Ann Lambrechts of Bekaert wins Inventor AwardToday it was announced that Ann Lambrechts, R&D manager with Bekaert has won the prestigious European Inventor Award for construction. The ... More Information

HSEQ manager wanted

HSEQ manager wantedIPS, the international personnel recruitment agency, is looking for a qualified German-speaking HSEQ manager with knowledge and experience in tunnelling construction to prepare ... More Information

Putzmeister customized shotcrete solutions

Putzmeister customized shotcrete solutionsWith concrete spraying reaches of up to 17 m and capacities up to 30 cu m/h, little wonder that Putzmeister machines are a common sight in the world's ... More Information

Aker Wirth TBMs for Koralm

Aker Wirth TBMs for KoralmAker Wirth will supply contractor Strabag AG with a pair of 9.93 m-diameter telescopic shield TBMs for the 20 km-long KAT 2 section of the 32.5 km-long Koralm tunnel on the ... More Information

Mine Radio Systems at Big Event

Mine Radio Systems at Big EventMRS will be presenting its Centrian Ethernet over leaky feeder solution at this year's Big Event in Timmins, Ontario on 18-19th May. The system provides integrated ... More Information

Tunnels and ITS symposium

Tunnels and ITS symposiumTunnels are currently the main application for ITS, intelligent transport systems. A new symposium scheduled for June 15-16th in Bergen, Norway will discuss the development ... More Information

Inaugural Expomatec fair for Madrid

Inaugural Expomatec fair for MadridExpomatec, the Spanish infrastructure, civil works, extraction and mining machinery fair, takes place 24-28th May at Feria de Madrid. This, the first in a series ... More Information

BASF additives aid concrete set at Limberg II

BASF additives aid concrete set at Limberg IIThe Limberg II hydro generating station in the Hohe Tauern high mountain range of Austria features two huge rock caverns with associated tunnel system. ... More Information

Follow the money in Brussels

Follow the money in BrusselsThe TEN-T info day on 29.06.2011 in Brussels will present the priorities for the EU transport calls for rail, river and motorway construction. Participants will be ... More Information

Early TBM completion at Lyon metro Line B

Early TBM completion at Lyon metro Line BOn 23.04.2011 Herrenknecht TBM Agata at Lyon metro Line B reached its exit shaft, some two months ahead of schedule. 300 m of the alignment is beneath the ... More Information

Unique Robbins hybrid EPB away at Sleemanbad

Unique Robbins hybrid EPB away at SleemanbadOn-site first time assembly of a 10 m-diameter hybrid EPB has been completed at the 12 km-long Sleemanbad carrier canal in Madhya Pradesh, India. The ... More Information

GIA upgrades underground cable bolter

GIA upgrades underground cable bolterThe latest mechanized grouting and cable insertion system (MEGSIS) from Swedish manufacturer GIA offers a guillotine effect cable cutter, improved piston pump ... More Information

Breakthrough for Almendral tunnel

Breakthrough for Almendral tunnel On 07.04.2011 excavation was completed on the 1.1 km-long single-tube, twin track Almendral tunnel, the major feature of the 1.67 km-long Barranco de ... More Information

Girona II tunnel excavation started

Girona II tunnel excavation startedOn 06.04.2011 the TBM Gerunda started excavation of Girona II tunnel on the Madrid-Barcelona-French border high-speed line. It will drive 1,565 m from the new ... More Information

Live bids sets record

Live bids sets recordMore than three dozen live bids are currently listed at tunnelbuilder, the largest number since this unique service was inaugurated three years ago. Live bids allows readers to ... More Information

Robbins EPB scores New Record in Zhengzhou

Robbins EPB scores New Record in ZhengzhouIn the Chinese city of Zhengzhou, soft ground tunnelling has made a speedy entrance. One of two 6.3 m-diameter Robbins EPBs at Zhengzhou metro Line 1 has ... More Information

Belgrade interceptor personnel contract renewed

Belgrade interceptor personnel contract renewediPS Personnel, who supplied a core of experienced tunnellers to assist in management and training at the Belgrade interceptor project in Serbia, have ... More Information

Espoo metro extension funded

Espoo metro extension funded On 01.04.2011 Lansimetro of Finland signed a 30 year loan agreement with the European Investment Bank (EIB) and the Nordic Investment Bank (NIB) to fund the EUR800 ... More Information

North-end excavation of Udaliatz underway

North-end excavation of Udaliatz underwayOn 18.03.2011 excavation started from the north end of the twin track Udalaitz tunnel on the Mondragon-Elorrio section on the new Vitoria-Bilbao-San ... More Information

Himalayan headrace excavation commenced

Himalayan headrace excavation commencedThe specially designed 6.18 m-diameter Seli DSU TBM has completed its first run in the Kishanganga tunnel project. The TBM, designed to bore through difficult ... More Information

Steel fixers and carpenters required

Steel fixers and carpenters requiredIPS has an urgent requirement for experienced and qualified construction workers for a two year contract in the south of England starting in two weeks time. If ... More Information

Bressanone ring road opening in South Tyrol

Bressanone ring road opening in South Tyrol On 16.04.2011 the first lot of the Bressanone and Varna ring road will be inaugurated, two days before its official opening to traffic. The new 4.7 ... More Information

Herrenknecht micros win in Warsaw

Herrenknecht micros win in WarsawA pair of Herrenknecht AVND micro machines has completed 16 difficult drives totalling 5.86 km for the new Warsaw wastewater treatment system. Pipe jacking up to 36 ... More Information

Intertunnel 2012 back in Turin

Intertunnel 2012 back in TurinWith two of the biggest cross-border tunnelling projects in the offing on the Lyon-Turin and Brenner lines, Italy is underpinning its position as Europe's ... More Information

RETC for San Francisco

RETC for San FranciscoThe biennial Rapid Excavation & Tunneling Conference takes place June 19-22nd, 2011 at the Marriott Marquis in San Francisco, CA. Field trips to New Irvington tunnel and ... More Information

Koralm tunnel gets underway

Koralm tunnel gets underwayOn 28.03.2011 government officials and provincial governors of Styria and Carinthia attended the groundbreaking ceremony for construction of lot KAT 1, a 20 km-long ... More Information

Daetwyler for reliable sealing systems

Daetwyler for reliable sealing systemsDaetwyler is a leading provider of engineered rubber profiles used in the sealing of tunnels, offering a wide range of reliable gaskets designed to match ... More Information

Shotcrete 2012 - call for papers

Shotcrete 2012 - call for papers The Shotcrete 2012 conference and exhibition is scheduled for the Alpbach Conference Centre, Tyrol, Austria from 12.01.2012 to 13.01.2012. Main language will be ... More Information

Tunnelling News

Amtrak awards construction contract for East River Tunnel rehabilitation

The $1.6 billion project calls for demolishing all existing tunnel systems down to the liner, then restoring both tubes. During the project, one tube ... More Information

Strabag in €110 million deal to equip transalpine tunnel

Austrian contractor Strabag has won a €110 million (US$120 million) to equip a transalpine tunnel linking Austria and Slovenia... More Information

19 tunnel boring machines for Manila subway set

A close-up of the tunnel boring machine head, with a diameter of 6.9 meters. ... The first cutter head of the first tunnel boring machine (TBM), named ... More Information

$16 billion Gateway Tunnel Project gets federal funding boost after years of delays

The $16.1 billion project includes a new rail tunnel linking New York and New Jersey — and is set to be open by 2035 ... More Information

Preferred bidder announced for second tunnelling contract

The global consortium of WeBuild S.p.A, GS Engineering and Construction Australia and Bouygues Construction ... Tunnel Project, North East Link ... More Information

Bechtel Picked as CM for $12.7B Single-bore BART Extension

Officials with the VTA are aiming to begin major construction and tunnelling for the $12.7-billion BART Silicon Valley Phase II Extension Project next ... More Information

Stonehenge could be put on world heritage danger list over tunnel plan

The United Nations Educational, Scientific and Cultural Organization (UNESCO) has recommended that Stonehenge be listed as ‘World Heritage in Danger’ due to the A303 upgrade scheme and is ... More Information

World’s longest railway tunnel to reopen after a year

The tunnel closed on 10th August last year following the derailment of a freight train, and SBB has since been pushing ahead with repair work... More Information

Afcons Infrastructure Wins Bid for Thane Tunnel Project

Afcons Infrastructure secures the L1 bid for a tunnel project in Thane, marking a significant milestone in infrastructure development. More Information

Kolkata Metro: D-Wall's Construction Work At Victoria Metro Station Is Advancing Swiftly

For the tunnelling work of the stretch from the Khidderpore to Park Street stretch of this Corridor, two Tunnel Boring Machines (TBM) will be deployed ... More Information

K2D Skøyen – Vækerø

Implenia has been awarded the contract for section K2D Skøyen - Vækerø, which is part of the entire Fornebu line that will be completed in 2030... More Information

Massey Tunnel replacement project hits design-build proposal stage

Tunnel replacement project has finally hit the design-and-build proposal stage. The Transportation Ministry announced Wednesday that three bid ... More Information

Barhale wins £36m East London sewer remediation

Thames Water has appointed Barhale to deliver essential remediation works on a Victorian gravity sewer as it passes above the Jubilee Line and Docklands Light Railway in East London... More Information

Reaping Rewards From Continuous Innovation

In boring underground tunnels for Malaysia's MRTs, Gamuda developed the world's first autonomous tunnel boring machine (A-TBM), utilizing in-house ... More Information

5 of the longest tunnels in the world and how they were built

Since the invention of the tunnel boring machine in 1853, engineers have used advanced technology to drill, blast, and bore into the earth. From ... More Information

Femern - inauguration of the first tunnel element

We are pleased to announce that H.M. King Frederik X will take part in the inauguration of the first tunnel element on the construction site on 17 June. H.M. King Frederik X will arrive at ... More Information

HOCHTIEF-MURPHY Joint Venture (HMJV)

A busy first half of the year on the HOCHTIEF-MURPHY Joint Venture (HMJV) Package 5 Headhouses & M&E contract on National Grid’s LPT Phase 2... More Information

Tesla Cybertruck escorts Boring Co's Prufrock-3 tunnel boring machine

The Boring Company's Prufrock-3 tunnel boring machine (TBM) recently completed a tunnel to Giga Texas, and in true Elon Musk fashion, ... More Information

Kazakhstan’s First Automobile Tunnel and Largest Bridge to be Completed this Year

As reported by the Kazakhstan’s Ministry of Transport, Kazakhstan’s first automobile tunnel through the Shakpak Baba Pass and the country’s largest bridge over the Bukhtarma Reservoir ... More Information

HRBT Expansion Project hits big milestone, could be on track for early completion

The tunnel boring machine, known as Mary ... construction of our two new bored tunnels,” said Project Director Ryan Banas... More Information

TBMs Pass Factory Test For Lesotho Highlands Water Project

A team of engineers and tunnel experts from the Lesotho Highlands Development Authority (LHDA) together with consultants and contractors working on the Polihali transfer tunnel recently ... More Information

Royal Cargo opts for Goldhofer heavy transport equipment

It has also been in action moving tunnel boring machines (TBM) for the Metro Manila Subway project ... machine part posed a significant challenge due ... More Information

Tunnel breakthrough on NI Water's £7.8M Portadown wastewater project

The tunnel boring machine excavated roughly 1,000m3 of material, which would have risen to 8,000m3 of spoil with a more traditional open-cut method. More Information

The Boring Company announces Cybertunnel at Tesla Texas HQ

In January, the company's latest tunnel boring machine (TBM), Prufrock 3, was first spotted near Tesla's Giga Texas. Prufrock-3 has ... More Information

How do you build tunnels and bridges underwater?

Underground construction usually uses powerful tunnel-boring machines to excavate soil directly. This machine is often called a mole for a reason. More Information

Five Huge New Construction Projects Coming To The US

A spokesperson for the project told Newsweek: "The Hudson Tunnel Project is a generational investment that is expected to create 95,000 new jobs and ... More Information

Chennai Metro Corridor 3: Adyar River Tunnel Work Hampered By Geological Setbacks

For the stretch between Greenways Road and Adyar, CMRL engaged two TBMs, 'Kauvery' and 'Adyar.' These machines were launched from Greenways Road ... More Information

French and Danish firms to build Valby 'cloudburst tunnel'

The underground tunnel will be 2,380m long and will be constructed as a drilled tunnel with an internal diameter of 3.4m. The tunnel will have the ... More Information

Howard's approved budgets include $44.9M for Ellicott City tunnel

The Howard County Council has approved a $2.4 billion operating budget for fiscal 2025, along with a $413 million capital construction budget that ... More Information

DC Water Breaks Ground On Potomac River Tunnel Project

DC Water on May 21 hosted a groundbreaking ceremony to officially commence construction activities for the Potomac River Tunnel Project... More Information

Silvertown Tunnel portal connections completed

A complete transformation of the tunnel shape was needed to connect the circular tunnel boring machine (TBM) constructed ... More Information

The $4BN Tunnel to Save Stockholm - The B1M

Above: A tunnel entrance under construction. When it completes in 2030, the $4BN project will be one of the longest road tunnel systems in the world. More Information

OHLA awarded the Gjønnes tunnel in Norway for nearly 160 million euros

The Norwegian Public Roads Administration (Statens Vegvesen) has awarded the company the design and construction of the Gjønnes tunnel for 156 ... More Information

Utilities tunnel dug through 'challenging' ground conditions under River Tees

Main contractor Farrans Construction worked with specialist contractor Joseph Gallagher to construct the tunnel. During its five weeks of tunnelling ... More Information

China develops world's first boring and blasting machine

In a groundbreaking development, the world's first boring and blasting machine, jointly developed by Tsinghua University and China Railway Science and Industry Group, has successfully ... More Information

Tunnel boring machine wedged in hard rock, leaving Snowy 2.0 hydropower project with new issues

Tunnelling problems are plaguing the $12 billion Snowy 2.0 hydropower project, with a boring machine previously bogged in soft ground now wedged in ... More Information

Construction Complete On New High-Speed Rail Tunnel

Inside the completed Desheng Tunnel, and inset, a Chinese high-speed train. Work on the project is now complete. © China ... More Information

DC Water Breaks Ground on Potomac River Tunnel Project

The Project consists of a large-diameter deep sewer tunnel, diversion facilities, drop shafts, and support structures to capture flows from existing ... More Information

Morocco’s proposed $13 billion underwater tunnel to connect Europe to Africa by 2030s

An historic intercontinental rail link is aiming to link Europe to Morocco with an ambitious underwater tunnel. The Moroccan National Company for Strait Studies (SNED) announced last ... More Information