New York Times on Crossrail
On 2017\08\08 10:40, Ding Bat wrote:
Tunneling today is done with an automated mole having a circular cross section,
so a Paris style semi-circular tunnel for double-track is impracticable.
Where does London have multi-track tunnels?
There are numerous between Kings Cross and Potters Bar. I doubt they are
all cut-and-cover.
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