All Tunnelling Articles

Cost hike on Romania’s first motorway tunnel
Excavation work on Momaia tunnel ‘like digging in sand’
Breakthrough for London’s newest underground tunnel
This will be the first newly built underground road link between the two banks of the Thames in over 30 years
Granite wins $215m sewer overflow tunnel contract
US construction contractor Granite has won a $215 million contract to build a tunnel aimed at preventing sewer overflows in the city of Akron, Ohio.
€230 million Swiss rail tunnel project for Implenia
Contractor leads joint venture on Lot 2 of Ligerz-Twann rail line expansion
7 construction megaprojects that severely overran their budget
Following on from International Construction’s recent article on why megaprojects go wrong and the ingredients for success, this week we examine some of the biggest budget overruns on projects.
First line of China’s longest shield machine expressway tunnel is completed
The TBM “Jinghua” from CRCHI has accomplished a breakthrough in the tunnel on the west line of the Beijing East Sixth Ring Road reconstruction project
Chinese contractors five months ahead of schedule on 13.3km Nepal tunnel
Chinese contractors China Railway No.2 Group and China Overseas Engineering Group are five months ahead of schedule on the construction of a complex 13.3km tunnel in Nepal.
Ferrovial-led consortium wins €300 million deal to extend Barcelona railway tunnel
Contractor Ferrovial, in consortium with Sacyr, Copisa and Copcisa, has won a €300 million deal to extend a commuter rail tunnel in Barcelona, Spain.
Stonehenge road tunnel approved... again
UK government gives green light for 3km tunnel beside world heritage site
Peri delivers 10,000 tonnes of formwork to Fehmarnbelt Tunnel
Engineering company delivers customised formwork to the world’s largest tunnel factory
The engineering challenges of Grand Paris Express, Europe’s largest transport infrastructure project
Société du Grand Paris boss, Bernard Cathelain, tells KHL’s Lucy Barnard about the engineering challenges behind Europe’s largest transport infrastructure project
Shortlist announced for last major Fehmarnbelt tunnel contract
Four consortia in running to build undersea electrified rail line between Denmark and Germany
A Chinese and a Turkish firm disqualified from major tunnel project
Contractors are reported to have falsified documents to win contract in Bosnia-Herzegovina
Breaking records, breaking ground: The latest in European tunnelling projects
Despite the challenges, tunnelling remains an essential tool for expanding infrastructure networks and connecting communities
Aecom joint venture wins detailed design deal on Sydney’s $2.9bn Western Harbour Tunnel
A joint venture led by infrastructure consultant Aecom has won a contract to develop the detailed design of the Western Harbour Tunnel in Sydney, Australia.
6 ways tunnel boring machines are evolving
How innovations in tunnel boring machines are increasing their speed and efficiency.
UK spends €900m on river crossing – before construction starts
Project boasts 63,000 pages of planning docs and a €4bn rise in expected cost
Video: TBMs work on one of China’s largest metro lines
Watch the largest TBM construction group applied in a single project
Skanska lands €1 billion Norwegian road project
Swedish contractor awarded PPP contract with environmental initiatives at its core
Fehmarnbelt: the technology behind the world’s longest immersed tube tunnel
Lucy Barnard reports on a complicated engineering challenge
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