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flag A Chinese-built tunneling duo is advancing Sydney’s Western Harbour Tunnel, replacing a submerged tube plan to cut environmental impact.

flag A Sino-Australian partnership is advancing Sydney’s Western Harbour Tunnel project using two massive Chinese-built tunnel boring machines, each over 4,000 metric tons and 113 meters long, equipped with intelligent, automated systems for underwater excavation up to 50 meters below sea level. flag The machines, designed by China Railway Engineering Equipment Group, will excavate 1.5 kilometers of a 6.5-kilometer three-lane tunnel by 2028, replacing an earlier submerged tube plan to reduce environmental and community impact. flag Acciona Construction Australia praised the collaboration and the machines’ advanced capabilities, highlighting successful cross-border teamwork despite initial cultural and language barriers. flag The project marks a major engineering milestone in the Southern Hemisphere and reflects growing global confidence in Chinese infrastructure technology.

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