Construction site: Longquan inverted siphon tunnel
Project Overview: The main stratum is full-section gray rock, clay, gravelly soil, rounded gravel, powdery clay, carbonaceous clay, etc. The line is laid along Feng Yuan Road, tunneling length is 5009.69m, and the tunnel top depth is 20m-75m.
Equipment type: 1 set of CSTE6470E soil-pressure balance electric drive shield machine with excavation diameter of 6470mm, and main drive power of 1200kW.