Cctv newsYesterday (27th), an ultra-large diameter shield machine with a maximum excavation diameter of 16.07m rolled off the production line in Changsha, which is the largest diameter shield machine developed in China so far.
This "Big Mac" shield machine is named "Jinghua", with a total length of 150 meters, a total weight of 4,300 tons, and a height of more than 5 floors. It is the first time that Chinese enterprises have successfully realized the industrial manufacturing of a 16-meter super-large diameter shield machine. According to reports, the shield machine will participate in the reconstruction project of Beijing East Sixth Ring Road after leaving the factory.