China Railway Group has most patents in tunnel safety monitoring
Tunnel safety monitoring helps to rescue people inside a tunnel and to maintain air quality and control spread of smoke in case of fire or a disaster. https://www.mining-technology.com/data-insights/innovators-tunnel-safety-monitoring-mining/?cf-viewConstruction of first railway tunnel in Romania for decades is on schedule
For decades after fall of communism, Romania did not build any tunnels and almost no railways. Now in Arad county in western Romania, a new tunnel under construction. After th...of up to 160 km/h. 45% of the 603 meter long tunne...USA: First tunnel breakthrough at the delayed Hampton Roads Bridge-Tunnel Expansion Project
https://www.youtube.com/watch?v=h7E33GTCcpA 'Mary, the tunnel boring machine for the new Hampton Roads Bridge-Tunnel expansion, completed the first new tunnel at the HRBT'...)' https://www.wavy.com/video/major-milestone-mary-tunne...First tunnel breakthrough at the delayed Hampton Roads Bridge-Tunnel Expansion Project
https://www.youtube.com/watch?v=h7E33GTCcpA 'Mary, the tunnel boring machine for the new Hampton Roads Bridge-Tunnel expansion, completed the first new tunnel at the HRBT'...)' https://www.wavy.com/video/major-milestone-mary-tunne...Fehmarnbelt tunnel between DENMARK and Germany set to be Europe's 'smartest tunnel'
Fehmarnbelt tunnel will be constucted between Denmark and Germany. 18 kilometers long Fehmarnbelt tunnel will be the World's longest immersed tunnel! Denmark’s state tra...king/fehmarnbelt-set-to-be-europes-smartest-tunne...Herrenknecht TBM is stuck in tunnel for over a year in Powai, Mumbai
6.6 km water tunnel construction from Veravali to Ghatkopar to improve the water supply of Mumbai is stalled for over a year. Because the German made tunnel boring machine is stuck in the tunne...Reply on topic: New York's leaky North River rail tunnel in repairs
The leaky North River rail tunnel is 110 years old already. Why not replace it with a modern tunnel? https://jg-tc.com/news/workers-race-against-time-in-aging-ny-rail-tunnel/video_4ffd915d-6476-51e0-b971-db8b87e5e929.html
cover tunnel photo by: Matt Brown from London, England / CC BY
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