Crossrail tunnelling nears halfway point

摘要

On August 27 Crossrail Ltd announced that the second of the two slurry TBMs deployed on the drive between Plumstead and North Woolwich had broken into the station box at Woolwich, 'marking the halfway point of tunnelling in southeast London'. The TBM took three months to reach Woolwich from Plumstead, excavating 110 000 tonnes of material and installing 811 concrete rings to line the running tunnel.