Beneath China’s unpredictable Yellow River, engineers built the world’s widest shield tunnel in a 110-day sprint. This video breaks down the custom TBM, the prefabrication strategy, and the ...
BEIJING, Jan 8 (Reuters) - A magnitude 5.5 earthquake shook parts of the Chinese province of Qinghai on Wednesday, with its epicentre located near the source of the Yellow River, the main natural ...