Chinese-made tunneling machine passes milestone

Posted on October 20, 2024
By The China Daily
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Chinese-made tunneling machine passes milestone

The world's largest shield machine for railway construction, a tunneling device with a diameter of 15.4 meters, excavated its 1,000th ring segment on Sunday to reach 2 kilometers, a milestone in the construction of a tunnel beneath the Yangtze River for a high-speed railway.