China Workers Complete World’s Largest Underwater Tunnel in Just 110 Days

Workers in China have achieved a monumental feat by completing the world’s largest-diameter underwater shield tunnel in an astonishing 110 days. This section, spanning two miles and measuring 55.8 feet (17 meters) in diameter, is a significant part of a larger infrastructure project designed to enhance regional connectivity.

Fast-Paced Construction

The rapid construction of the tunnel was made possible by the advanced “Shanhe” shield machine, which facilitated an impressive daily advancement of 52.5 to 59 feet, amounting to a monthly progress of 1396.6 feet. This achievement has set a new world record for underwater tunnel construction speed.

Advanced Technology and Techniques

The tunnel’s construction involved the use of 500 pipe rings, each contributing to the underwater shielding required for such a large-scale project. The “Shanhe” shield machine played a crucial role in navigating the challenging underwater environment of the Yellow River, ensuring both speed and precision in the construction process.

Project Scope and Impact

The tunnel is part of a broader 3.6-mile project under the Yellow River, which aims to significantly improve…