They Drilled 57km Through the Alps. Then Missed by 8cm. скачать в хорошем качестве

They Drilled 57km Through the Alps. Then Missed by 8cm.

They drilled from five different locations simultaneously. Through 57 kilometres of the Alps. And when the sections finally met deep inside the mountain, they were off by 8 centimetres. This is the Gotthard Base Tunnel—the longest railway tunnel in the world. And the story of how Switzerland turned an impossible engineering challenge into 17 years of systematic precision. This video breaks down: → Why Switzerland chose to drill through the base instead of over the summit → How survey teams achieved centimetre precision across tens of kilometres → The machines that moved millions of tonnes of rock → What happened when they hit the Piora Zone → How a tunnel becomes a functioning railway system No fluff. Just engineering. More megaproject breakdowns coming. Subscribe:    / @megatechbuilds   TECHNICAL SPECS: Length: 57 km Construction: 1999-2016 Max speed: 250 km/h Breakthrough deviation: 8cm lateral, 1cm vertical SOURCES & FURTHER READING: AlpTransit Gotthard AG Official Reports Swiss Federal Office of Transport Documentation ETH Zurich Tunnelling Research Engineering Challenges Report (2017) Fair Use Disclaimer: This video includes copyrighted material used under fair use principles. It's a transformative work created for educational and entertainment purposes — designed to inform, analyze, and engage. All rights to original copyrighted material belongs to their respective owners. Should you have concerns about the use of any content, please reach out directly for resolution at megatechbuilds@gmail.com.