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Tunneling News

Major wastewater tunnel procurement begins in southern Sweden

Swedish regional water utility VA SYD has launched the procurement process for the tunnel and shaft works forming part of the MAXIMA wastewater treatment system. The project will create a new undergro...

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Advanced mixshield TBM tackles chalk and flint beneath the Thames

Construction has begun on a major sub-river power tunnel beneath the River Thames as part of National Grid’s Great Grid Upgrade, with a Herrenknecht Mixshield tunnel boring machine now driving a 2.2 k...

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Tailrace tunnel breakthrough advances Australia’s largest renewable project

Australia’s Snowy 2.0 pumped storage hydropower project has reached a major construction milestone after tunnel boring machine Lady Eileen Hudson completed excavation of the 6 km tailrace tunnel and b...

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New sprayed concrete lining guide reshapes soft-ground tunnelling standards after decades of lessons

The publication of a new best-practice design guide for sprayed concrete linings (SCL) in soft ground marks an important technical development for underground construction, consolidating lessons from...

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Scripting Comes to RS3: Automate, Customize, and Accelerate Your 3D Modelling

Why Scripting Matters Geotechnical projects are more complex. Models are larger, construction sequences have more stages, and parametric studies must be rerun. Manually building and post-processing mo...

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Deep beneath London: HS2 completes critical safety cross passages in Northolt tunnel

HS2 has reached a major underground construction milestone with the completion of all 34 cross passages linking the twin bores of the 8.4-mile Northolt Tunnel beneath west London. Running between West...

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Dubai approves $9.2bn fully underground gold line metro

Dubai has approved the development of the Gold Line metro, a major underground transport project valued at approximately $9.2bn. Extending 42 km with 18 stations, the line will be the emirate’s first...

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Fehmarnbelt tunnel advances with first element ready for immersion

The Fehmarnbelt Fixed Link has reached an important milestone with the completion of ballast filling in its first tunnel element. This is the first of 89 elements that will form the immersed tunnel li...

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Yangtze River high-speed rail tunnel completed after record underwater TBM drive

China has reached a major tunnelling milestone with the completion of the underwater section of the Chongming–Taicang Yangtze River tunnel, a key component of the Shanghai–Chongqing–Chengdu high-speed...

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Underground works begin on major Madrid Metro extension

Tunnelling works have commenced for the extension of Metro Line 11 in Madrid, marking a key milestone in the city’s underground infrastructure expansion, according to project announcements and indust...

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