China Built a 22,000 Meter Tunnel That Even USA Engineers Can’t Believe скачать в хорошем качестве

China Built a 22,000 Meter Tunnel That Even USA Engineers Can’t Believe

China is drilling straight through some of the toughest mountains on Earth – building tunnels over 22,000 meters long that look impossible from the outside. In this video, we go inside that underground world. You’ll see how engineers: Decide where to cut through a mountain instead of going over it Use 3D simulations, rock core samples, and geology data to plan every meter Build the tunnel’s “lungs” with massive ventilation shafts and jet fans Assemble a Tunnel Boring Machine the size of a skyscraper lying on its side Grind through solid rock, install tunnel linings, and remove thousands of tons of debris Switch to controlled blasting when the rock becomes too dangerous for a TBM Use the New Austrian Tunneling Method (NATM) to let the mountain support itself Run final safety tests, sensors, and inspections before a tunnel opens to the public Monitor the tunnel for decades with thousands of sensors and 24/7 maintenance From physics and geology to machinery and human risk, this is the full story of how China builds ultra-long mountain tunnels that stunned the world. If you’re into megaprojects, engineering, and future infrastructure, you’ll love this one. 🔔 Subscribe to Sargani Tech for more deep dives into the projects shaping our world. Chapters: 00:00 Intro 00:50 Why China builds tunnels through mountains 01:30 How planning and simulations start 02:12 Building the tunnel’s “lungs” 02:53 Enter the Tunnel Boring Machine 03:34 How a TBM actually works 04:18 When blasting is the only option 05:00 The New Austrian Tunneling Method (NATM) 05:48 Final testing and safety checks 06:13 How tunnels are maintained for decades 06:47 Outro