Wuhan Yangtze River Highway Tunnel
Release time:
2025-12-23
Abstract
Construction unit: China Railway Tunnel Bureau Group Co., Ltd.
Device Number: ("Changjiang No. 1" Tunnel Boring Machine) French company NFM
Cutting disc diameter: 11.38 meters
Tunneling length: 2550 meters
Project Features:
The geological conditions are complex: the tunnel needs to pass beneath a riverbed at a depth of 57 meters under high water pressure, through highly permeable silty fine sand layers, and across rock formations with uneven hardness. Addressing technical challenges such as high water pressure, strong permeability, ultra-shallow burial, long-distance tunneling, and precise attitude control, the tunnel boring machine (TBM) completed a single-pass excavation of approximately 2.5 kilometers beneath the riverbed, setting a new record at the time for China’s longest tunnel excavated by TBM under complex geological conditions characterized by high water pressure. This tunnel is also the first under-river highway tunnel in China constructed using a TBM with a diameter exceeding 10 meters, and it was the very first tunnel in the country to be fully excavated through a continuous sandy stratum.
Year of commencement: November 2004
Year of completion: December 2008
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