"Jianghan Ping'an" tunnel boring machine is largest domestically build dual shield TBM in China. The TBM has excavation diameter of 11.93 meters. It is 180 meters long and weight 550 tons

I will used in Yichang, Central China's Hubei Province for project to channel water from the Three Gorges Reservoir area to the Hanjiang River.

https://www.globaltimes.cn/page/202501/1326311.shtml