How China Builds Mountain Tunnels Over 22,000 Meters Long That Stunned the World
How China Builds Mountain Tunnels Over 22,000 Meters Long That Stunned the World China just stunned the world — not with skyscrapers or weapons — but with tunnels carved through mountains. Stretching over 22,000 meters beneath rock and earth, these mega-structures redefine what human engineering can achieve. Behind every meter drilled lies years of precision, planning, and determination — turning impossible terrain into arteries of connection and progress. From laser-guided Tunnel Boring Machines to advanced monitoring systems, China’s mountain tunnels are rewriting the limits of modern infrastructure. Follow Mandarin Tech as we uncover how a nation digs its way into the future — deep, precise, and unstoppable. Video Chapters: 00:00 Intro 00:57 Purpose 02:09 Planning 03:26 Ventilation 04:37 Tunnel Boring Machine 06:22 Operating the Tunnel Boring Machine 08:38 Controlled Blasting 11:10 Sequential Excavation Method 13:32 Inspection and Testing 14:37 Maintenance 15:52 Outro
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