Japan's super-large undersea tunnel dug 54km under the sea at a cost of 690 billion yen over 24 years┃How do you make a tunnel under the sea?┃Documentary Prime┃

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EBS Documentary

Published on Jun 18, 2024
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※ This video is part of the <Documentary Prime - The Way of the Sea, the Way of the Future Undersea Tunnel> broadcast on July 28, 2011. We will learn about the Tongyeong Undersea Tunnel, the first undersea tunnel in the East, the Geoga Bridge, the world's lowest depth immersed tunnel, and the Seikan and Tokyo Bay Undersea Tunnels in Japan, and scientifically analyze the various construction methods hidden within them. ✔ Program name: The Way of the Sea, the Way of the Future Undersea Tunnel ✔ Broadcast date: 2011.07.28 #TVRollaDunDocumentary

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