Project Facts
This project, located at Longgang Area, Wuxiang New District, Nanning, Guangxi Province, China, consists of 2 lots with lengths of 2.38Km and 1.13Km respectively (overburden 12-17m, boring diameter 3,430mm, and pipe diameter 2,800mm). Main geology therein is mixed ground with red clay and limestone (UCS 32Mpa) with presence of pore groundwater and bedrock fissure water.
Machine Specification
Tunnel length: 3,510 m
Excavation diameter: 3,430 mm
Main drive power: 315 kW
Best weekly performance: 15 m/day
Total Thrust: 25,000 kN
Maximum Torque: 1,200 kNm
Cutterhead Drive: Hydraulic
Cutterhead Power: 315 kW
Cutterhead Rotation: 0-6 rpm
Geological Features
Mixed ground with red clay and limestone (UCS 32Mpa) with presence of pore groundwater and bedrock fissure water.