CRCHI Large Diameter Open-type Rock TBM Rolls off Assembly Line for South-to-North Water Diversion Project
On November 22, 2024, the open-type rock TBM with an excavation diameter of 11.93 meters (the largest of its kind in China), rolled off the assembly line of China Railway Construction Heavy Industry Corporation Limited (CRCHI). The TBM will be used in the middle line of the South-to-North Water Diversion Project to divert the Yangtze River to supplement the Han River. It is also the excavation machine for the largest section and the longest soft rock deformation section of the Project that will divert the Yangtze River to supplement the Han River.
The TBM named "Jianghan Neolithic" and manufactured by CRCHI, is approximately 175-meters long and has a total weight of about 3,000 tons. It has a minimum radius of 800 meters and adapts to a maximum slope of 10%. With the immersive intelligent excavation system, it can do real-time visualization of the geology in front of the TBM, and has precise autonomous control of excavation routes, automatic posture correction, and automatic excavation step change, etc.
