By rosebell
Being deployed in the excavation of the No. 6 auxiliary tunnel of the Xianglushan Tunnel, Dali Section I of the water diversion project in the central part of Yunnan Province, TBM Fuhe has a boring diameter of 10.23m and a total length of almost 190m, while consisting of a main machine, a service bridge, and 10 trailing support units. Intending to be designed to dig a total length of 15.51km, the system weighs 2,500 tons.
In order to tackling the challenges of the alignment’s complex geology including soft rock deformation and high-pressure, water-rich sections, this TBM has been designed, whereas it also features an advanced digital drilling rig and an anchor cable drilling system that together enable integrated geological forecasting, tunnel face reinforcement, and vault support, ensuring safety for long-distance tunnelling on steep gradients.
As one of the 172 major water-saving and supply projects designated by the State Council, the water diversion project aims to improve water supply in central Yunnan and ensurd the region’s sustainable development. With a total span of 664km, over 92% consisting of tunnels, the project will divert an average of 3.4 billion m3 of water annually, benefiting more than 11 million people in cities such as Kunming and Yuxi, following completion.
