VINCI aims to save from tunnel lighting:
https://tunnelcontact.com/discussion/view/46705/vinci-pilots-light-colored-tunnel-road-surface-for-energy-saving
Interesting work from VINCI.
VINCI is testing the "the effectiveness of a lightcoloured road surface as regards improving visibility and limiting energy consumption, notably by reducing the need for lighting" in a Greek tunnel.
The...
"Bouygues has reportedly pulled one of its tenders for the 300M HS2 Phase One overhead catenary works contract due to competition issues arising from its merger with Equans" reports...
"Bouygues has reportedly pulled one of its tenders for the 300M HS2 Phase One overhead catenary works contract due to competition issues arising from its merger with Equans" reports...
In another group I wrote about this TBM and where it would be used.
https://wiadomosci.gazeta.pl/wiadomosci/7,114883,29160810,rzeszow-szykuje-sie-na-transport-gigantycznej-maszyny-tbm-obnizy.html
Another good read:
Explanations of Performance Differences in Segment Lining for Tunnel Boring Machines
Hans Aoyang Zhou, Aymen Gannouni, Tala Bazazo, Johannes Tröndle, Anas Abdelrazeq & Frank...
To control a tunnel boring machine (TBM), operators have to continuously make real-time interpretations, judgments, and decisions based on signals produced by TBM sensors....
A good...
https://www.youtube.com/watch?v=sJNdaCKqgY8
With the Fornebu Line (in Norwegian: Fornebubanen) project, all had started in a good way. The all-tunnel 8150 meter rail line is planned to connect of Fornebu in Bærum with Oslo Metro. It is also...
Full-Scale Loading Test of Jet Grouting in the Artificial Island–Immersed Tunnel Transition Area of the Hong Kong–Zhuhai–Macau Sea Link
https://ascelibrary.org/doi/abs/10.1061/%28ASCE%29GM.1943-5622.0002625
This project has total 52 km of water tunnels. After the tunnel collapse, the hydropower system has been shut down.
M/s China Gezhouba Group Company (CGGC), the contractor for the construction of civil works has been called for the...
The line got a major breakthrough on 19 November by successfully boring a 1.4-km-long tunnel, as part of ...
https://swarajyamag.com/news-headlines/delhi-metro-phase-iv-breakthrough-achieved-on-22-km-tunnel-between-janakpuri-west-and-keshopur
The tunnel boring machine (TBM) working on the Silvertown Tunnel river crossing project is now under the Thames as it makes it way towards North Greenwich in...
Analytical solution for deep circular tunnels covered by an isolation coating layer subjected to far-field shear stresses
Haitao Yu,Qi Wang
Tongji University, China
https://oa.mg/work/10.1016/j.tust.2021.104026
The National Highways and Infrastructure Development Corporation Limited (NHIDCL) has not agreed to open the open Z-Morh tunnel on a trial basis due to several safety and technical...
Bin Salman, meet the heads and discuss cooperation.
Samsung C & T and Hyundai E & C have already formed a consortium to win the tunnel construction of the Neom city the Line.
https://news.nate.com/view/20221116n24808?mid=n1101
Chennai Metro Rail’s phase II will have stations on three levels
https://www.thehindu.com/news/cities/chennai/chennai-metro-rails-phase-ii-will-have-stations-on-three-levels/article66144255.ece
Tunnels are another priority area, both for all-weather connectivity and swift troop deployment
https://timesofindia.indiatimes.com/india/lac-infra-boost-nine-tunnels-being-built-11-planned/articleshow/95543779.cms
Around 190km of the planned 418km of the partially built Hemus Motorway, also designated A2, are open to traffic.
https://www.worldhighways.com/wh12/news/bulgaria-tenders-hemus-tunnel-repairs