Core Viewpoint - The launch of the world's first in-situ variable diameter shield machine "Bianjing No. 1" marks a significant breakthrough in China's rail transit construction, enhancing the country's high-end equipment manufacturing capabilities [1][2] Group 1: Technological Innovation - "Bianjing No. 1" shield machine integrates the construction of interval tunnels and station tunnels, addressing issues related to traditional construction methods such as ground excavation, construction interruptions, and site occupation [1][2] - The machine can freely adjust its diameter, achieving innovative "one station, two tunnels, continuous forming" construction, which is a world-first technology [2] - The project team overcame multiple global challenges and integrated various independent innovative technologies, including multi-cutter beam synchronous expansion and intelligent control systems [2] Group 2: Economic and Environmental Impact - The successful development of "Bianjing No. 1" provides a new green, safe, efficient, and resource-conserving construction solution for global underground engineering [2] - The machine is particularly suitable for construction in densely built, busy urban core areas, achieving "small disturbance, low impact, and micro-interference" [1]
全球首台原位连续大尺寸可变径盾构机下线