Workflow
济南航天大道穿黄隧道15米级超大直径盾构机“启航号”掘进过半
Qi Lu Wan Bao·2025-09-12 10:16

Core Insights - The Jinan Aerospace Avenue Yellow River Tunnel project has achieved a significant milestone with the "Qihang" shield machine completing over half of its tunneling work, reaching a depth of 1626 meters [2] - The tunnel, which spans 3888 meters and is designed for a dual six-lane urban arterial road with a speed limit of 60 km/h, is crucial for connecting the Yaoqiang International Airport and the new kinetic energy conversion pilot area [2] - The project faces complex geological challenges, including crossing the Yellow River and its embankments, necessitating advanced engineering solutions and real-time monitoring systems to ensure safety and efficiency [3] Project Details - The shield section of the tunnel, managed by China Railway 14th Bureau, extends 3252 meters and utilizes a 15-meter diameter slurry balance shield machine [2] - The construction team customized the "Qihang" shield machine to enhance tunneling efficiency by modifying the cutter head design and improving slurry treatment capabilities [2] - The project is expected to enhance the urban road network along the Yellow River, facilitating seamless connections between urban expressways and key transportation hubs, thereby supporting ecological protection and high-quality development in the region [3]