China Railway Engineering Equipment Group Co., Ltd CREG produced largest China TBM for Hard Rock.
Yunling diameter 9.83 meters. It will put into use water tunnel project in Yunnan Province, China.
English news:
https://global.chinadaily.com.cn/a/202005/11/WS5eb91424a310a8b241154d60.html
cover tunnel photo by: Matt Brown from London, England / CC BY
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Also English news
https://www.trenchlessinternational.com/2020/05/13/chinas-largest-tbm-ready-for-work/
China’s largest TBM ready for work
www.trenchlessinternational.comThe 9.83 m diameter Gripper TBM will bore a 20.8 km long water transfer tunnel at a maximum depth of