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World's largest-diameter underwater shield tunnel achieves dual breakthrough in China(1/3)_蜘蛛资讯网

unnel stretches 5.75 kilometers, with about 3.3 kilometers constructed using the shield tunneling method. The project deployed the "Shanhe" shield machine, featuring an excavation diameter of 17.5 met

l in Jinan, east China's Shandong Province was fully completed on Tuesday, marking the dual breakthrough of the world's largest-diameter underwater shield tunnel.      &n

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