China completed the Zhanjiang Bay Undersea Tunnel, the country’s longest single-headed undersea high-speed railway shield tunnel. Spanning 9,640 meters, including a 7,551-meter shield section, this engineering marvel is part of the Guangzhou-Zhanjiang High-speed Railway. Constructed over 33 months, the tunnel showcases China’s advanced capabilities in high-speed railway infrastructure. The tunnel’s design prioritizes environmental conservation and resilience against typhoons, ensuring the safety and efficiency of rail operations. Expected to significantly reduce travel time between Guangzhou and Zhanjiang, the project enhances connectivity within the Guangdong-Hong Kong-Macao Greater Bay Area aiming to boost regional development.
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