Great World D-walls (VI)

The d-walling works for the Great World station have been ongoing for 18 months and are nearly completed. Excavation of both launch shafts are underway and segments for the 2 Herrenknecht TBMs are on the shaft surface.

Construction of the STP for the Herrenknecht mixshield at the south shaft

Excavation of the launch shaft with part of the new permanent Stanford diversion canal cutting through the shaft

Pre-assembled gantry crane and TBM 

D-walling of the station box

EPB Herrenknecht TBM at the north shaft

Bottom-up construction of the north shaft