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A fleet of JIMT/TERRATEC EPBMs gear up for Taiwan’s Taoyuan MRT Green Line

On behalf of its group company, JIMT, TERRATEC delivers the last two of four EPBMs that will be used by FUTSU-OBAYASHI-CEC JV (FOC JV) for the underground works on Taiwan Taoyuan Mass Rapid Transit ... More Information

Second tunnel excavated for Snowy 2.0

The Snowy 2.0 pumped-hydro mega project has achieved another important construction milestone, with a second tunnel excavation completed at Lobs Hole in the Snowy Mountains. The 2.93-km ... More Information

New breakthrough for TBM Houda

On the 29/05/2023 TBM 7, named Houda, broke through at the Becquerel manufact in Sevran, Lot 2, Line 16, as part of the Grand Paris Express route. The contractor consortium is NGE - BTP - Webuild. ... More Information

TBM Phyllis arrives at Broadway-City Hall

On 26/05/2023 Phyllis, the second of two massive TBMs that are excavating twin tunnels for the Broadway Subway Project, broke through to the future Broadway-City Hall Station, marking another ... More Information

Minneapolis Central City Tunnel: Project updates

The City of Minneapolis Public Works Department is constructing a new parallel storm tunnel, enlarging a portion of the existing storm tunnel, and constructing a new tunnel access in Downtown ... More Information

Press release - The Norwegian Coastal Administration continues work on the Stad ship tunnel

In early May the Norwegian government presented its proposal for a revised national budget for 2023. There it emerged that the cost estimates for the Stad ship tunnel have increased ... More Information

The American Shotcrete Association Courses

The American Shotcrete Association (www.shotcrete.org) provides ACI Shotcrete Nozzleman and/or Shotcrete Inspector Certifications worldwide! As the foremost resource for shotcrete application, ... More Information

Φ14.02 TBM 'New Crossing' Assists the Breakthrough of Shanghai Airport Link Line Tunnel Section Parallelling with High Speed Railway.

On April 12th, the 14.02-meter large diameter CRCHI TBM named 'New Crossing' successfully completed its Lot II tunnel section, by tunnelling the Shanghai airport link line for the first municipal ... More Information

BART Silicon Valley Phase II Project - Preparing for Early Construction Activities at Newhall Yard site

In preparation for construction of VTA’s BART Silicon Valley Phase II Extension Project, VTA’s tunnel and trackwork contractor, Kiewit, Shea, Traylor (KST) have developed a Construction ... More Information

Work underway on the High Speed Railway Bypass in Florence, Italy

On 15 May 2023 the official ceremony was held for the beginning of the construction of the Florence high-speed bypass which included the new high-speed station Firenze Belfiore. The ... More Information

West Gate Tunnel Project - the boring of the two twin tunnels is now complete

The West Gate Tunnel Project marked a major milestone with TBM Bella breaking through in South Kingsville, completing a 4km journey from the west side of the Maribyrnong River under Yarraville, to ... More Information

Update on Robbins Main Beam TBM for the Lower Meramec Phase 2 tunnel

The Robbins Main Beam TBM for the Lower Meramec Phase 2 tunnel packs a lot into a small 3.35 m diameter: 360-degree probe drilling, high-performance drive motors, 192 tons of machine. See the ... More Information

Eurock 2024 - Call for Abstracts

Press Release - The call for abstracts for Eurock 2024 has opened! The European Rock Mechanics Symposium will be held in Alicante (Spain) on July 15-19, 2024. Click here to submit your ... More Information

NASTT 2024 No-Dig Show Call for Abstracts

The North American Society for Trenchless Technology (NASTT) is accepting abstracts for its 2024 No-Dig Show to be held at the Rhode Island Convention Center in Providence (Rhode Island, USA) ... More Information

India/Agra Metro - TBM Yamuna breaks through at Agra Fort station

Back in February the Robbins crew and contractor Afcons Infrastructure Ltd (Mumbai)/ Sam India Builtwell Pvt Ltd (Delhi) celebrated the site acceptance test for the first of two 6.65 m diameter and ... More Information

USA/Texas - Arrived on site the TBM EPB for the PL19TUN integrated pipeline project

Traylor-Sundt Construction Joint Venture continues to make progress on the Section 19 Long Tunnel Crossings (PL19TUN) integrated pipeline project in Henderson County, Texas. The project is spread ... More Information

TERRATEC EPB TBM is rocking at Mithi River

Press release - TERRATEC 3.14m diameter EPB TBM is making excellent progress for Mithi River Water Quality Improvement Project in Mumbai, India. TERRATEC 3.14m diameter Earth Pressure Balance ... More Information

CIFA takes its ninety-five years of history to Samoter

Press release - CIFA will be at Samoter 2023 (area F stands 21-24) while celebrating its 95th anniversary. Since its foundation, CIFA has grown alongside the changes all around the world, ... More Information

The World's Largest - 52 TBMs Group in Guangzhou Metro Construction

The construction project of Guangzhou Metro Line 18/22, as the largest metro investment in China, has attracted much attention. CRCHI has tailored 52 φ8.8m EPB/Slurry TBMs for the project, ... More Information

WTC 2023 - Digital presentation information

On 25/04/2023 the digital presentation to showcase the World Tunnel Congress 2023 was held online. The actual congress will be between the 12-18 May at the Megaron Athens International Conference ... More Information

STUVA-Expo 2023 - More than 150 exhibitors already registered

STUVA Expo will take place in Munich on the 8th and 9th of November 2023 alongside the STUVA Conference. Already more than 150 companies have already booked their trade fair ... More Information

HS2’s multi-billion-pound boost for UK businesses

HS2’s construction is helping to keep over 2,000 UK businesses afloat as they continue to tackle difficult economic conditions. Latest figures from HS2 show that tier two subcontracts ... More Information

€3 Billion in news tenders on the way for the new stage of the Lyon-Turin project

PRESS RELEASE - New tenders, with an estimated value of EUR3 billion, are on the way to build the Mont Cenis base tunnel which is under construction beneath the Alps between France and Italy. More ... More Information

First Tunnel Breakthrough achieved in Delhi

At the beginning of April NCRTC achieved its first tunnel breakthrough for the Delhi section of the Delhi - Ghaziabad - Meerut RRTS corridor. The TBM Sudarshan 4.1 made the breakthrough from the ... More Information

Green Light from Bolzano Municipality for the new Virgolo railway tunnel

On the 17/04/2023 the Bolzano City Council gave the go ahead for RFI to construct the new Virgolo railway tunnel with three tracks and the moving of the Merano line junction. The new Virgolo tunnel ... More Information

First TBM arrives at Broadway City Hall

On April 14, 2023 Elsie, one of two TBMs constructing the twin tunnels for the Broadway Subway, brokethrough to the future Broadway-City Hall Station, that will be the busiest and largest station on ... More Information

Snowy 2.0 Project Update

Construction of Snowy 2.0 - a critically important, pumped-hydro expansion of the Snowy Scheme in Australia, continues to make progress across multiple worksites. The project involves linking two ... More Information

HS2 launches third tunnelling machine in London

HS2 has once again begun tunnelling under the capital, launching its third giant Tunnel Boring Machine (TBM) in London. The tunnel won’t be used by HS2 trains, but instead will be used to ... More Information

World Tunnel Congress 2023: “The underground space is often undervalued as an asset”

A conversation between Arnold Dix, President of ITA and Nikolaos Roussos, President of GTS As the new edition of the WTC in Athens from 12 to 18 May approaches, Arnold Dix, President of the ... More Information

Chennai Metro Update

Marina Beach to Kodambakkam Flyover - The underground section of this corridor is split into two packages (UG-01 & UG-02) each of which contains 4 km of twin tunnels. In order to complete ... More Information

TERRATEC TBMs launched for Surat Metro

TERRATEC Tunnel Boring Machines keep on advancing on Surat Metro Rail project in India. TERRATEC is pleased to announce the launch of another EPB TBM for Surat Metro in India. This unit is a ... More Information

BBT - TBM Virginia has reached the border with Austria

On 28/03/2023 an important milestone was reached for the Brenner Base Tunnel, on the Italian side, at the Mules (BZ) construction site. After 14 km of excavation and almost 4 years of ... More Information

HS2 tunnelling team celebrate milestone TBM breakthrough in Warwickshire

Press release - Today [Thursday 30 March] HS2’s tunnelling team in Warwickshire celebrated the milestone breakthrough of tunnel boring machine ‘Dorothy’ as the giant cutterhead ... More Information

Robbins TBM Miss Briella will drive the Lower Meramec Tunnel Phase 2 project

AFFHOLDER (formerly known as SAK Construction, LLC tunneling) will use the TBM named Miss Briella for the Lower Meramec Tunnel Phase 2 project, part of the Metropolitan St. Louis Sewer District. ... More Information

Tunnel segments arrive for HRBT Expansion Project

Last week the HRBT Expansion Project hit a major milestone as the first set of tunnel segments arrived by barge to the South Island from the precast plant in Cape Charles, VA. Nine (9) tunnel ... More Information

High Speed Two: Euston

Press release - The government should use the two-year pause on new construction work at HS2 Euston to develop a design that is affordable, deliverable and value for money, according to a new ... More Information

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Tunnelling News

Tunnel boring machine S-639B achieves breakthrough under Kanpur Metro Phase I Project

The package KNPCC-06 involves design and construction of a tunnel through TBM, cut and cover tunnel, underground ramp from Kanpur Central end of ... More Information

Lawmakers propose construction of undersea tunnel to link Luzon and Visayas

Several lawmakers from the Visayas region are proposing the construction of an underground tunnel that will serve as a permanent land connection ... More Information

Oman-UAE rail project hits major milestone with start of tunnel excavation

Tunnel excavation has begun in Oman's Al Hajar Mountains, marking a major milestone for the cross-border Oman-UAE Railway... More Information

Engineering the depths: innovative tunnelling for hydropower projects

Major schemes in Austria, China, and Germany are applying advanced underground construction techniques for hydropower projects. More Information

New tunnel, new standard: Silvertown project showcases innovation in surface protection

Originally approved in 2018, construction of the tunnel began in March 2021. In September 2023, following the completion of tunnelling works, ... More Information

Metro Manila Subway Project: DOTr launches third tunnel boring machine

Dubai: The Department of Transportation (DOTr) has launched a third tunnel boring machine (TBM) for the Metro Manila Subway Project (MMSP), ... More Information

Skanska JV wraps up $450M Baltimore tunnel nearly 2 years early

A joint venture has reached substantial completion on the $450 million Howard Street Tunnel Project in Baltimore nearly two years ahead of the original completion date, according to a ... More Information

Work continues on NYC megaprojects, despite $18B federal funding pause

Contractors on two of New York City’s largest infrastructure projects will keep digging, but they might glance over their shoulders toward Washington... More Information

HS2 Chipping Warden tunnel project moves step forward

HS2 Ltd An aerial view of the HS2 tunnel construction at Chipping Warden. A road HS2 Ltd. The 1.55 mile (2.5km) Chipping Warden tunnel will be ... More Information

First of three Tunnel boring machines on way to SA as beams go up for tram overpass

The first of three tunnel boring machines that will be used to complete the northern and southern tunnels project is on its way to SA as part of a ... More Information

Chennai Metro Rail's TBMs to begin tunneling between Thiruvanmiyur and Indira Nagar

Chennai Metro Rail begins tunnelling work in challenging stretch for phase II project, facing obstacles due to hard rock... More Information

Custom lifting gantry aids TBM removal - Construction Briefing

The four TBMs excavated the 8.4 mile (14 km) Northolt Tunnel section. Two went in each way, digging a pair of tunnels from both ends towards each ... More Information

Tunnel construction begins on Barskoon — Bedel road in Issyk-Kul region

According to the project, two tunnels, 5,340 and 3,840 meters long, respectively, will be built at Sook and Ashuu-Suu passes. They will be among the ... More Information

China debuts world's mightiest centrifuge, unleashing ultra-intense gravity

China leads the way in shield tunnelling machine development · Shield machine of south line of Yellow River tunnel starts boring in Jinan · A close ... More Information

Boring Company Launches Global Operations Control Center in Bastrop, Texas

The Boring Company has officially opened its new Global Operations Control Centre in Bastrop, Texas, the tunnelling start-up announced on X... More Information

Port of Longview Lands $35.9MM Federal Loan for Rail Expansion

Active Construction on New Hudson Tunnel Project Supporting Domestic Jobs and Economic Output ... Bridges/Tunnels, Class 1, Freight, Ports, Track ... More Information

TBM Parvati Achieves Breakthrough At Kakadeo Station Of Kanpur Metro Line 2

Brief Scope: Design and Construction of TBM Tunnel, Cut and Cover Tunnel, ramp after Double Pullia, ramps in Agriculture Depot for main line and ... More Information

Howard Street tunnel reopens ahead of schedule, boosting Baltimore's freight capacity

The Howard Street Tunnel has been reopened after being out of service since February 2025.The nearly 130-year-old tunnel extends north from Camden Yards to the Mount Royal Station and is ... More Information

Progress update on the Tunnel Boring Machine for National Grid

Following its launch in May this year, Buddug, the Eryri VIP tunnel boring machine (TBM) is making good progress digging the tunnel which will ... More Information

Mumbai-Ahmedabad Bullet Train Project Clears Major Hurdle

After months of delay, the tunnel-boring machine stuck in China is being shipped to India, clearing the path for underground construction of the ... More Information

Bright lights: This Las Vegas tunnel is getting a major upgrade

Construction is underway on Desert Inn Road between Paradise Road and Joe W Brown Drive as part of a $9.2 million improvement project on Friday, ... More Information

Panama Canal Tunnel Boring Machine Crosses Under the Canal, Marking a Milestone

Panama Canal Tunnel Boring Machine Crosses Under the Canal, Marking a Milestone on Metro Line 3. Auto-dubbed. 398 views · 6 hours ago ...more ... More Information

Major breakthrough achieved in Mumbai-Ahmedabad bullet train tunnel construction

Mumbai: A breakthrough was achieved for a 4.88 km-long tunnel between Shilphata and Ghansoli for the... More Information

New Austrian tunnelling method achieves milestone breakthrough in BKC-Shillphata undersea tunnel project

In a significant milestone for the ambitious undersea tunnel project between BKC and Shillphata, g Method (NATM) has ... More Information

World's Longest Railway Connection Makes Construction Breakthrough

The Brenner Base Tunnel, built deep beneath the Alps, is set to reshape freight and passenger transport across Europe... More Information

New game-changing tunnel boring, reef cutting 'meeting and beating' all expectations

UG2 reef at Bokoni is the target of the twin mobile tunnel boring and narrow reef cutter. Tunnelling will be done with the mobile tunnel borer for ... More Information

Mota-Engil CEO confirms winning bid for Santos-Guaruja tunnel

The company's subsidiary, Mota-Engil, has won the tender for the construction and operation of Brazil's first underwater tunnel, connecting the ... More Information

Metro Vancouver Utility Nearing Finish of $288M Annacis Water Tunnel

“Resilience is at the heart of this project,” said Nedim Alca, COWI's North America market director. “What makes this milestone so significant is not ... More Information

Fehmarnbelt: Danish tunnel portal nears completion

The work on the entrance to the Fehmarnbelt tunnel at Rødbyhavn on Lolland is almost complete. photo courtesy of The Fehmarnbelt Project. More Information

Final decision on airport tunnel 'now or never'

Alderman Jim Stevenson and City administrators are making a dramatic last push for the airport tunnel before construction on the new north/south ... More Information

Athens Metro Line 4 works to finish by 2029

The construction of Athens Metro Line 4 is progressing steadily, with the entire project ... Tunnel mistakenly excavated in Athens metro project. More Information

First trains on track to run through Metro Tunnel within three months

Melbourne's $15.5 billion Metro Tunnel could be switched on in as little as three months as construction wraps up at two CBD stations and trains ... More Information

Petersburg crews to begin tunnel project in response to ongoing flooding, damage - WRIC

As ongoing water issues have caused significant damage to infrastructure around Petersburg, the Old Towne neighborhood ... More Information

Intelligent optimization framework for tunnel construction

Tunnel construction forms the foundation of railway development and is essential for ensuring route continuity and operational efficiency. However, ... More Information

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

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