Скачать или смотреть How Underwater Tunnels Are Built – পানির নিচে সুড়ঙ্গ তৈরির রহস্য.

Ever wondered how underwater tunnels are built without water flooding inside? The process is a masterpiece of modern engineering.

👉 Here’s how it works:

Engineers lower a massive Tunnel Boring Machine (TBM) to the seabed.

The machine digs through soil and rock, creating space for the tunnel.

As it moves forward, workers install steel and concrete segments behind it. These form a strong protective shell that prevents water from leaking inside.

Piece by piece, the tunnel grows until it finally connects both ends.

This incredible method allows us to travel safely under rivers, seas, and oceans, proving just how advanced human engineering has become. 🌊🚇

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#EngineeringWonders #UnderwaterTunnel #MegaProjects #TunnelBoringMachine #TBM #ConstructionSecrets #CivilEngineering #AmazingFacts #EngineeringMarvels #howitsmade
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