Some countries will build railways around those mountains, but if you’re Switzerland, and you have to deal with your Alps, you just go ahead and build the world’s largest tunnel even if it ...
a four-mile multi-purpose underwater tunnel, will cross the Bosphorus River - a natural strait located in Turkey’s largest city which connects the Black Sea to the Sea of Marmara and forms one ...
Engineers at the China Railway Construction Heavy Industry Corporation (CRCHI) have turned to a 2,500-year-old blacksmithing approach to help build the world’s largest tunnel-boring machine (TBM).
The completed section of tunnel has a diameter of 55.8 feet (17 meters), and it has 500 pipe rings of underwater shielding.
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