HS2 TBM foam surfaces on a rugby field creating a pool of foam!
Talking about chemicals and the environment... https://www.geplus.co.uk/news/hs2-tunnelling-resumes-in-west-london-after-foaming-borehole-discovered-22-02-2023/City Rail Link takes over the US $8.7m Herrenknecht TBM after the acceptance tests
...h; that is roughly the equivalent of nine blue whales, the largest animal ever known to have existed - and at 130 metres stretches the length of a rugby field. The TBM is no...Tags: History of Civil Engineering, Science Fiction, Hiking, Rugby
cover tunnel photo by: Matt Brown from London, England / CC BY
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