Project Overview: Wanjiali Road 220KV Power Tunnel Teli West Road Intersection-Torch Intersection section length 6601.9m, the main strata for the conglomerate, pebbles, gravel, silty clay, muddy siltstone, the tunnel is basically along the Wanjiali Elevated Direction, under the Wanjiali Elevated, Liuyang River, Changsha Metro Line 3, the complexity of the section line environment, the shield construction settlement control requirements are high, and the tunnel exists in a number of radii The tunnel has a number of continuous turns with radius of 150 meters.
Equipment type: 2 sets of CSTE04350E earth pressure balance shield machine with excavation diameter of 4350mm, main drive power of 330kW.