China Completes World’s Largest Diameter Underwater Shield Tunnel in Just 110 Days
In a stunning display of speed and engineering mastery, China has once again rewritten the global infrastructure playbook by completing the world’s largest diameter underwater shield tunnel in a record-breaking 110 days. Built beneath the Yellow River in Jinan, Shandong Province, this 3.29-kilometer megastructure is not only a marvel of civil engineering but also a