HS2 Launches First Tunnel Boring Machine in the Midlands

Dorothy will remove 250,000 cubic metres of mudstone and soil. These will go to the on-site slurry treatment plant, where the material will be separated and then used on embankments and for landscaping along the line.

The final section at the tunnel’s southern end will become a cut and cover tunnel, where a soil roof is built around the tunnel entrance to allow it to be integrated in the natural landscape.

In total, ten tunnel boring machines will bore 64 miles of tunnel during Phase One of HS2.

This TBM was named after Dorothy Hodgkin, who became the first British woman to win the Nobel Prize in Chemistry. She confirmed the structure of penicillin and her work with insulin paved the way for it to be used on a large scale for the treatment of diabetes.

source= https://railway-news.com/hs2-launches-first-tunnel-boring-machine-in-the-midlands/