16.09m diameter TBM developed by China Communications Construction Company (CCCC).
https://www.theconstructionindex.co.uk/news/view/giant-tbm-completed-in-china
cover tunnel photo by: Matt Brown from London, England / CC BY
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https://www.theconstructionindex.co.uk/news/view/giant-tbm-completed-in-china
Giant TBM completed in China
www.theconstructionindex.co.ukA 5,000-tonne tunnel boring machine has rolled off the production line in Changshu in east China’s Jiangsu Province