The giant underground worm: how tunnel boring machines(TBM) work? engineering wonder under the earth

Ever wondered how massive tunnels are carved through solid rock and soil under entire cities without causing collapses? In this video by How It’s Work, we break down the engineering marvel known as the Tunnel Boring Machine (TBM) — also called a "Mega Mole." From the giant rotating cutterhead that crushes rock to the hydraulic jacks and automated concrete segment erector that builds tunnel walls on the spot, discover the complete step-by-step mechanism of underground tunneling. If you enjoy engineering breakdowns, mega machines, and how modern infrastructure works, make sure to like, share, and subscribe to How it's work! 🔔 Subscribe for weekly breakdowns: [Your Channel Link Here] 👍 Like the video if you learned something new! 💬 Comment below: Which mega engineering project should we cover next? -------------------------------------------------- DISCLAIMER / CREDITS: Visual references and animations used in this video are for educational and explanatory purposes. #TunnelBoringMachine #TBM #EngineeringExplained #MegaMachines #HowItsWork #CivilEngineering #Infrastructure