Shandong's first large-diameter subway tunnel shield machine "Opening No. 1" off the assembly line

On May 17, the first large-diameter metro tunnel shield tunneling machine “Exploration No. 1” designed and manufactured by Jinan Heavy Industries and Construction Group was successfully assembled and commissioned, and passed the acceptance inspection. "Opening No. 1" has an excavation diameter of 6.68 meters, a total length of 85 meters and a total weight of more than 500 tons. It has independent intellectual property rights, and it integrates machine, electricity, liquid, light, sensing, and information technology. The optical imaging visualization technology solves the problem of “black box” operation and greatly reduces the risk of operations. It also has a laser measurement guidance system with an accuracy of up to two millimeters per kilometer, which meets the requirements for measurement and correction of tunnel construction lines.


Related News: Shield Machine Tunnel Downline

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