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TBM Ida will drive the west main Brenner Base Tunnel

On the 14/02/2023 the official inspection of the second TBM for the H41 Sill Gorge-Pfons construction lot of the Brenner Base Tunnel took place at Herrenknecht AG in Schwanau (D). The ... More Information

Sweden's largest infrastructure project with €80 billion to be invested over the next 10 years

Press release - Sweden's largest infrastructure project - First trains on Ostlänken in 2033 The eastern link between Södertälje and Linköping is to be completed in 2035. In ... More Information

Tunnelling on the Eglinton Crosstown West Extension reaches halfway mark

Last week the Eglinton Crosstown West Extension reached another milestone: Renny, the first TBM to start tunnelling passed the halfway point, digging over 3 km of the roughly 6 km ... More Information

WTC2023 | Historical Underground Visits - Athens Underground

Join us on Saturday, May 13th for a once-in-a-lifetime opportunity to explore the historical underground constructions of Athens. Discover the hidden secrets of the city as we visit the Memorial ... More Information

Gamuda Wins Major Transport Project in Australia

Press release - Gamuda Australia has been awarded a major transport project by the NSW Government, the Sydney Metro West – Western Tunnelling Package. In a consortium with Laing ... More Information

Press release - First bore of Silvertown Tunnel completes

Jill, the Tunnel Boring Machine (TBM) delivering the Silvertown Tunnel in east London, has reached the rotation chamber in the Greenwich site, completing the tunnelling of the first bore. The ... More Information

UYAK2023 postponed from March to June 2023

Due to the devastating earthquakes in Turkey UYAK2023, the 5th International Underground Excavations Symposium and Exhibition has been postponed to June 5-6-7, 2023. The other key dates that have ... More Information

TBM Vida breaks through on the West Gate Tunnel Project 

The first of two giant TBMs has broken through on the West Gate Tunnel Project, marking the completion of excavation on the 2.8 km first tube of twin tunnels under Yarraville - a Melbourne suburb ... More Information

Press release - Atkins appointed to design €9.5bn Dublin MetroLink project

Atkins has been appointed to the design for the advance works programme of Dublin’s £8.4bn (€9.5bn) MetroLink project. The scheme, given the green light in July of last year, ... More Information

CRCHI - Slurry TBM "Channel Express" Launched for the Construction of Water Supply Tunnels in Singapore

Press Release:- On February 1st, the "Channel Express", a Slurry TBM that was manufactured and shipped by CRCHI to Singapore was launched successfully following a ceremony. The TBM had been ... More Information

Australasian Tunnelling Conference 2023

The 18th Australasian Tunnelling will be hosted by the NZTS in Auckland, Aotearoa New Zealand between the 5th and 8th November 2023. With an overarching focus on Trends and Transitions in ... More Information

CEAR’s R&D updates for its MV Junction boxes

Press Release - Cear’s R&D dept. is always improving the technical performances of its products and specifically for its MV Juction and Distribution boxes. We recently received approval ... More Information

BBT - Segments production started for lot H41 Sill Gorge-Pfons

The main part of tunnels in lot H41 Gola del Sill-Pfons will be driven by two TBMs. The machines - during their tunnelling - will install the rings, composed of prefabricated concrete ... More Information

Strata Worldwide Celebrates 30 Years in Business

The global safety company looks back on accomplishments and looks forward to providing continued support for their industries around the globe. ATLANTA, GEORGIA - January 30, 2023 - Strata ... More Information

Work begins on the Dehesa del Terzuelo tunnel construction on the High Speed Line to Extremadura

Press Release - Adif Alta Velocidad has moved significantly forward in the construction of the 69km second section of the 437km High Speed Line Madrid-Extremadura. This will link Talayuela and ... More Information

Major breakthrough for Broadway Subway Project

A first major milestone has been reached by the Acciona Ghella Joint Venture on the Broadway Subway Project. Elsie, the first of two 150-m-long TBMs that began excavating for the Broadway Subway ... More Information

Switzerland - construction update for Isla Bella tunnel on A13

Press release - On January 26, 2023 the patron saint Santa Barbara blessing was given so construction could begin for the safety tunnel for the Isla Bella tunnel. The tunnelling works will be ... More Information

CRCHI Showcases the overall solution for underground engineering equipment at bauma CONEXPO INDIA 2023

The 6th International Trade Fair for Construction Machinery, Building Material Machines, Mining Machines and Construction Vehicles (bauma CONEXPO INDIA 2023) kicked off on January 31, 2023. China ... More Information

Cross River Rail Project - January/February updates

Teams have now completed Woolloongabba - Albert Street and Boggo Road - Woolloongabba sections in both directions, Roma Street to the Northern Portal 1.2 km in the upline and 750 m in the ... More Information

HS2 celebrates as longest tunnels reach halfway point under the Chilterns

On 01 February HS2 Ltd confirmed that Florence and Cecilia, the two giant TBMs driving the HS2 high speed rail project’s longest tunnels, have passed the halfway point of the 16 km (10 ... More Information

State of California Awards EUR344 (USD375 million) for VTA’s BART Project

On 31/01/2023 the State of California awarded EUR344 million (USD375 million) to the Santa Clara Valley Transportation Authority (VTA) for its BART extension into Downtown San Jose and Santa ... More Information

Cross River Rail Project - January/February updates

WTC 2023 - Early Registration Fees deadline extended!

After many requests, the Early Registration for WTC2023 to be held at Megaron Athens International Conference Centre (MAICC) on 12 – 18 May 2023 has been extended. The new early bird deadline is ... More Information

TERRATEC TBMs - Chennai Metro Rail update

In December, TERRATEC celebrated the assembly of the third of five ordered 6.61m diameter Earth Pressure Balance Tunnel Boring Machines (EPBMs) for the Chennai Metro Rail project in India. ... More Information

City Rail Link Press Release

Press release - Ngā mihi o te Tau Hou (happy New Year) from the team at City Rail Link! We’re back and ready for a busy year working on the next phase of works – fitting out the tunnels and stations ... More Information

Waterproof shotcrete with self-healing properties to repair and protect the vault of the tunnel Paradiso

Waterproof shotcrete with self-healing properties to repair and protect the vault of the tunnel Paradiso Press Release - The phenomenon of self-healing of cracks in concrete structures is a ... More Information

First blast for the Hovik tunnel on E18

Skanska Norge AS and the Norwegian Public Roads Administration started the drill&blast excavation works of the Hovik tunnel on the Strand-Ramstadsletta section of the E18 Lysaker-Ramstadsletta. In ... More Information

Works begin on the Perca bypass ready for Winter Olympics 2026

This month the construction site for the 3 km Perca ring road on the SS 49 in Val Pusteria began preparatory works. The Perca ring road will improve the viability and quality of life of the ... More Information

Tunnelling begins on Scarborough Subway Extension

TBM Diggy Scardust has officially started tunnelling for the Scarborough’s 7.8-km subway extension that will bring subway service farther north into Scarborough and accommodate as many as ... More Information

Kanpur Metro - Second breakthrough on Moti Jheel-Nayaganj underground section

On the 17/01/2023 the Joint Venture Gulermak-Sam India reached an important milestone with the breakthrough of the Terratec TBM S92. The breakthrough happened at Nayaganj Station on the 3.62 km Moti ... More Information

Sepulveda Transit Corridor project

Metro will host three community open houses - one of which will be virtual - on January 21, 24, and 26 - for the Sepulveda Transit Corridor Project, which will build a heavy rail line or monorail ... More Information

WTC2023 - Early Registration

WTC 2023 will be held in a hybrid format. It will mainly be a congress with physical attendance combined with its digital side. Physical participation is encouraged so that this congress marks the ... More Information

Norway - Stad Ship Tunnel supplier conference

To date, in relation to the Stad ship tunnel construction project, about 50 contractors and suppliers have registered for the Supplier Conference. The conference will be held in Gardermoen on the ... More Information

Update for the Lonato tunnel on the HS/HC railway line Brescia East - Verona

On Saturday 7 January 2023, the TBM Martina - diameter 10.03 m, length 150 m and weight 1,750 t - began excavation from the Campagna di Lonato site of the 4782 m second tube of the Lonato rock ... More Information

The Cairo Metro Line 4 Project

In December 2022 Eng. Sayed Farouk - CEO & Chairman of the Arab Contractors Company, visited the Cairo Metro Line 4 project to follow up on the work progress. First, there was a meeting to ... More Information

UYAK2023 Deadline Extended

On the request from authors, the full paper submission date of UYAK2023 Symposium has been extended up to January 15, 2023. The full papers of the accepted abstracts should be uploaded to the ... More Information

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Tunnelling News

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

RiverRenew Tunnel Project Nearing Completion

The RiverRenew Tunnel System Project, the largest infrastructure investment in Alexandria's history, is nearing completion. More Information

Sydney Metro West tunnels enter final stretch after big breakthrough

Two tunnel boring machines (TBMs) constructing the huge Sydney Metro West tunnels have made a smashing entrance 24 metres below the surface. More Information

Chennai Metro Rail launches first tunnel boring machine for underground tunnelling in Kolathur

Corridor 5 begins at Madhavaram Milk Colony and connects through Koyambedu, Porur, Alandur and other residential/commercial areas of the city to ... More Information

Element Six, Master Drilling Announce Tunnel Development Partnership

Element Six and Master Drilling will deliver a diamond-enabled solution designed to increase tunneling development speed, reducing costs and minimize the environmental impact of tunnel ... More Information

Gateway Project Tunnel Connecting NY and NJ Moves Forward

Five Gateway contracts have been awarded so far, including one on Predergast's first day for construction on the Manhattan side of the tunnel... More Information

HSR Xi'an – Yan'an: Completion of All Tunnels in the Project

The HSR Xi'an – Yan'an has completed the excavation of all tunnels, including the Tongchuan Tunnel. This is a key milestone in the construction ... More Information

Brazil's US$1bn underwater tunnel project making waves among potential bidders

The first underwater road tunnel project in Brazil is attracting interest from multiple potential bidders, an official familiar with the matter ... More Information

Element Six and Master Drilling Announce Strategic Partnership for Advanced Tunnel

Achieving high quality, nonexplosive tunnel construction with various aspects of value generated compared to traditional rock excavation methods is a ... More Information

Tutor Perini Wins a $1.2 Billion NYC Contract

A joint venture of Sylmar-based civil construction firm Tutor Perini Corp. and its subsidiary Frontier-Kemper Constructors has won a $1.18 billion contract to construct a pair of rail ... More Information

Milestone reached for $1.6b Auckland wastewater tunne

Watercare's Central Interceptor project has passed an historic milestone with the southern half of the 16.2 kilometre tunnel – Blockhouse Bay ... More Information

Elon Musk's 'Wormhole' Tunnel Promises To Carry 20,000 People Per Hour In Dubai

It’s been more than eight years since Elon Musk decided he was fed up with traffic and declared he’d start digging tunnels to revolutionize public transport across the United States. So ... More Information

First tender for Dubai’s $22bn tunnels due within days

Dubai Municipality is expected to tender the first two packages of the $22bn Dubai Strategic Sewerage Tunnels (DSST) project imminently... More Information

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