How Engineers Build Giant Airports On Impossible Ground. Extreme Engineering Megaprojects

How do engineers build giant airports on abandoned coal mines, soft seabeds, and unstable ground? Explore extreme airport construction from Istanbul's 42-month megaproject designed for 90 million passengers a year to Hong Kong's 5,100-ton moving skybridge and 250,000 deep-mixed cement columns. See giant drilling rigs, deep foundations, metro tunnels, steel terminal frames, concrete pours, and precision runway paving in Australia and the United States. Discover how Los Angel …