The City of Zhengzhou is set to become a major rail crossroads for China, located at the intersections of China’s major North-South and East-West lines. Currently tunneling with tunnel boring machine (TBM) is taking place on the City’s Line 1 Metro where a total of 16-miles of tunnels and 22 stations will be completed by 2013. [Source: TBM Magazine. Image: TBM Magazine]
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