The completed section of tunnel has a diameter of 55.8 feet (17 meters), and it has 500 pipe rings of underwater shielding.

The Great Istanbul Tunnel project is being excavated using one of the world's largest tunnel machines (TBM), an impressive piece of machinery measuring 83 metres long and 20 metres wide.

The world's largest-diameter underwater shield tunnel has been completed in China.According to Interesting Engineering, the ...

The Great Istanbul Tunnel project is being excavated using one of the world's largest tunnel machines (TBM), an impressive piece of machinery measuring 83m in length and 20m in width. This marks ...

China's largest-diameter dual-shield, self-developed TBM (Tunnel Boring Machine), the "Jianghan Ping'an," was launched on Sunday in Yichang, Central China's Hubei Province, as part of a project to ...

China has completed the construction of the world's longest express tunnel through the Tianshan Mountains, according to a local news source.

making it the world's largest one in diameter, heaviest, and highest load-bearing main bearing of integral tunnel boring machine. China Matters produced the animation titled "Xi's Thought Made ...